Add Android project

android-project/app/build.gradle

@@ -0,0 +1,62 @@
+plugins {
+     id 'com.android.application'
+}
+
+def buildWithCMake = project.hasProperty('BUILD_WITH_CMAKE');
+
+android {
+    namespace = "org.libsdl.app"
+    compileSdkVersion 35
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 35
+        versionCode 1
+        versionName "1.0"
+        externalNativeBuild {
+            ndkBuild {
+                arguments "APP_PLATFORM=android-21"
+                // abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
+                abiFilters 'arm64-v8a'
+            }
+            cmake {
+                arguments "-DANDROID_PLATFORM=android-21", "-DANDROID_STL=c++_static"
+                // abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
+                abiFilters 'arm64-v8a'
+            }
+        }
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    applicationVariants.all { variant ->
+        tasks["merge${variant.name.capitalize()}Assets"]
+            .dependsOn("externalNativeBuild${variant.name.capitalize()}")
+    }
+    if (!project.hasProperty('EXCLUDE_NATIVE_LIBS')) {
+        sourceSets.main {
+            jniLibs.srcDir 'libs'
+        }
+        externalNativeBuild {
+            if (buildWithCMake) {
+                cmake {
+                    path 'jni/CMakeLists.txt'
+                }
+            } else {
+                ndkBuild {
+                    path 'jni/Android.mk'
+                }
+            }
+        }
+
+    }
+    lint {
+        abortOnError = false
+    }
+}
+
+dependencies {
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+}

android-project/app/jni/Android.mk

@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)

android-project/app/jni/Application.mk

@@ -0,0 +1,10 @@
+
+# Uncomment this if you're using STL in your project
+# You can find more information here:
+# https://developer.android.com/ndk/guides/cpp-support
+# APP_STL := c++_shared
+
+APP_ABI := armeabi-v7a arm64-v8a x86 x86_64
+
+# Min runtime API level
+APP_PLATFORM=android-16

android-project/app/jni/CMakeLists.txt

@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.6)
+
+project(GAME)
+
+# SDL sources are in a subfolder named "SDL"
+add_subdirectory(SDL)
+
+# Compilation of companion libraries
+#add_subdirectory(SDL_image)
+#add_subdirectory(SDL_mixer)
+#add_subdirectory(SDL_ttf)
+
+# Your game and its CMakeLists.txt are in a subfolder named "src"
+add_subdirectory(src)
+

android-project/app/jni/src/Android.mk

@@ -0,0 +1,19 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := main
+
+# Add your application source files here...
+LOCAL_SRC_FILES := \
+    YourSourceHere.c
+
+SDL_PATH := ../SDL  # SDL
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/$(SDL_PATH)/include  # SDL
+
+LOCAL_SHARED_LIBRARIES := SDL3
+
+LOCAL_LDLIBS := -lGLESv1_CM -lGLESv2 -lOpenSLES -llog -landroid  # SDL
+
+include $(BUILD_SHARED_LIBRARY)

android-project/app/jni/src/CMakeLists.txt

@@ -0,0 +1,29 @@
+cmake_minimum_required(VERSION 3.6)
+
+project(my_app)
+
+if(NOT TARGET SDL3::SDL3)
+    find_package(SDL3 CONFIG)
+endif()
+
+if(NOT TARGET SDL3::SDL3)
+    find_library(SDL3_LIBRARY NAMES "SDL3")
+    find_path(SDL3_INCLUDE_DIR NAMES "SDL3/SDL.h")
+    add_library(SDL3::SDL3 UNKNOWN IMPORTED)
+    set_property(TARGET SDL3::SDL3 PROPERTY IMPORTED_LOCATION "${SDL3_LIBRARY}")
+    set_property(TARGET SDL3::SDL3 PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${SDL3_INCLUDE_DIR}")
+endif()
+
+if(NOT TARGET SDL3::SDL3)
+    message(FATAL_ERROR "Cannot find SDL3.
+
+Possible ways to fix this:
+- Use a SDL3 Android aar archive, and configure gradle to use it: prefab is required.
+- Add add_subdirectory(path/to/SDL) to your CMake script, and make sure a vendored SDL is present there.
+")
+endif()
+
+add_library(main SHARED
+    YourSourceHere.c
+)
+target_link_libraries(main PRIVATE SDL3::SDL3)

android-project/app/jni/src/YourSourceHere.c

@@ -0,0 +1,26 @@
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+/*                                                       */
+/* Remove this source, and replace with your SDL sources */
+/*                                                       */
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+int main(int argc, char *argv[]) {
+    (void)argc;
+    (void)argv;
+    if (!SDL_Init(SDL_INIT_EVENTS | SDL_INIT_VIDEO)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_Init failed (%s)", SDL_GetError());
+        return 1;
+    }
+
+    if (!SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Hello World",
+                                 "!! Your SDL project successfully runs on Android !!", NULL)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_ShowSimpleMessageBox failed (%s)", SDL_GetError());
+        return 1;
+    }
+
+    SDL_Quit();
+    return 0;
+}

android-project/app/proguard-rules.pro

@@ -0,0 +1,77 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in [sdk]/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   https://developer.android.com/build/shrink-code
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+-keep,includedescriptorclasses,allowoptimization class org.libsdl.app.SDLActivity {
+    java.lang.String nativeGetHint(java.lang.String); # Java-side doesn't use this, so it gets minified, but C-side still tries to register it
+    java.lang.String clipboardGetText();
+    boolean clipboardHasText();
+    void clipboardSetText(java.lang.String);
+    int createCustomCursor(int[], int, int, int, int);
+    void destroyCustomCursor(int);
+    android.content.Context getContext();
+    boolean getManifestEnvironmentVariables();
+    android.view.Surface getNativeSurface();
+    void initTouch();
+    boolean isAndroidTV();
+    boolean isChromebook();
+    boolean isDeXMode();
+    boolean isScreenKeyboardShown();
+    boolean isTablet();
+    void manualBackButton();
+    int messageboxShowMessageBox(int, java.lang.String, java.lang.String, int[], int[], java.lang.String[], int[]);
+    void minimizeWindow();
+    boolean openURL(java.lang.String);
+    void requestPermission(java.lang.String, int);
+    boolean showToast(java.lang.String, int, int, int, int);
+    boolean sendMessage(int, int);
+    boolean setActivityTitle(java.lang.String);
+    boolean setCustomCursor(int);
+    void setOrientation(int, int, boolean, java.lang.String);
+    boolean setRelativeMouseEnabled(boolean);
+    boolean setSystemCursor(int);
+    void setWindowStyle(boolean);
+    boolean shouldMinimizeOnFocusLoss();
+    boolean showTextInput(int, int, int, int, int);
+    boolean supportsRelativeMouse();
+    int openFileDescriptor(java.lang.String, java.lang.String);
+    boolean showFileDialog(java.lang.String[], boolean, boolean, int);
+    java.lang.String getPreferredLocales();
+    java.lang.String formatLocale(java.util.Locale);
+}
+
+-keep,includedescriptorclasses,allowoptimization class org.libsdl.app.HIDDeviceManager {
+    void closeDevice(int);
+    boolean initialize(boolean, boolean);
+    boolean openDevice(int);
+    boolean readReport(int, byte[], boolean);
+    int writeReport(int, byte[], boolean);
+}
+
+-keep,includedescriptorclasses,allowoptimization class org.libsdl.app.SDLAudioManager {
+    void registerAudioDeviceCallback();
+    void unregisterAudioDeviceCallback();
+    void audioSetThreadPriority(boolean, int);
+}
+
+-keep,includedescriptorclasses,allowoptimization class org.libsdl.app.SDLControllerManager {
+    void pollInputDevices();
+    void pollHapticDevices();
+    void hapticRun(int, float, int);
+    void hapticRumble(int, float, float, int);
+    void hapticStop(int);
+}

android-project/app/src/main/AndroidManifest.xml

@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    android:versionCode="1"
+    android:versionName="1.0"
+    android:installLocation="auto">
+
+    <!-- OpenGL ES 2.0 -->
+    <uses-feature android:glEsVersion="0x00020000" />
+
+    <!-- Touchscreen support -->
+    <uses-feature
+        android:name="android.hardware.touchscreen"
+        android:required="false" />
+
+    <!-- Game controller support -->
+    <uses-feature
+        android:name="android.hardware.bluetooth"
+        android:required="false" />
+    <uses-feature
+        android:name="android.hardware.gamepad"
+        android:required="false" />
+    <uses-feature
+        android:name="android.hardware.usb.host"
+        android:required="false" />
+
+    <!-- External mouse input events -->
+    <uses-feature
+        android:name="android.hardware.type.pc"
+        android:required="false" />
+
+    <!-- Audio recording support -->
+    <!-- if you want to record audio, uncomment this. -->
+    <!-- <uses-permission android:name="android.permission.RECORD_AUDIO" /> -->
+    <!-- <uses-feature
+        android:name="android.hardware.microphone"
+        android:required="false" /> -->
+
+    <!-- Camera support -->
+    <!-- if you want to record video, uncomment this. -->
+    <!--
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-feature android:name="android.hardware.camera" />
+    -->
+
+    <!-- Allow downloading to the external storage on Android 5.1 and older -->
+    <!-- <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="22" /> -->
+
+    <!-- Allow access to Bluetooth devices -->
+    <!-- Currently this is just for Steam Controller support and requires setting SDL_HINT_JOYSTICK_HIDAPI_STEAM -->
+    <!-- <uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30" /> -->
+    <!-- <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" /> -->
+
+    <!-- Allow access to the vibrator -->
+    <uses-permission android:name="android.permission.VIBRATE" />
+
+    <!-- Allow access to Internet -->
+    <!-- if you want to connect to the network or internet, uncomment this. -->
+    <!--
+    <uses-permission android:name="android.permission.INTERNET" />
+    -->
+
+    <!-- Create a Java class extending SDLActivity and place it in a
+         directory under app/src/main/java matching the package, e.g. app/src/main/java/com/gamemaker/game/MyGame.java
+
+         then replace "SDLActivity" with the name of your class (e.g. "MyGame")
+         in the XML below.
+
+         An example Java class can be found in README-android.md
+    -->
+    <application android:label="@string/app_name"
+        android:icon="@mipmap/ic_launcher"
+        android:allowBackup="true"
+        android:theme="@style/AppTheme"
+        android:hardwareAccelerated="true" >
+
+        <!-- Example of setting SDL hints from AndroidManifest.xml:
+        <meta-data android:name="SDL_ENV.SDL_ANDROID_TRAP_BACK_BUTTON" android:value="0"/>
+         -->
+
+        <activity android:name="SDLActivity"
+            android:label="@string/app_name"
+            android:alwaysRetainTaskState="true"
+            android:launchMode="singleInstance"
+            android:configChanges="layoutDirection|locale|grammaticalGender|fontScale|fontWeightAdjustment|orientation|uiMode|screenLayout|screenSize|smallestScreenSize|keyboard|keyboardHidden|navigation"
+            android:preferMinimalPostProcessing="true"
+            android:exported="true"
+            >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+            <!-- Let Android know that we can handle some USB devices and should receive this event -->
+            <intent-filter>
+                <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
+            </intent-filter>
+            <!-- Drop file event -->
+            <!--
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="*/*" />
+            </intent-filter>
+            -->
+        </activity>
+    </application>
+
+</manifest>

android-project/app/src/main/java/org/libsdl/app/HIDDevice.java

@@ -0,0 +1,21 @@
+package org.libsdl.app;
+
+import android.hardware.usb.UsbDevice;
+
+interface HIDDevice
+{
+    public int getId();
+    public int getVendorId();
+    public int getProductId();
+    public String getSerialNumber();
+    public int getVersion();
+    public String getManufacturerName();
+    public String getProductName();
+    public UsbDevice getDevice();
+    public boolean open();
+    public int writeReport(byte[] report, boolean feature);
+    public boolean readReport(byte[] report, boolean feature);
+    public void setFrozen(boolean frozen);
+    public void close();
+    public void shutdown();
+}

android-project/app/src/main/java/org/libsdl/app/HIDDeviceBLESteamController.java

@@ -0,0 +1,655 @@
+package org.libsdl.app;
+
+import android.content.Context;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothGatt;
+import android.bluetooth.BluetoothGattCallback;
+import android.bluetooth.BluetoothGattCharacteristic;
+import android.bluetooth.BluetoothGattDescriptor;
+import android.bluetooth.BluetoothManager;
+import android.bluetooth.BluetoothProfile;
+import android.bluetooth.BluetoothGattService;
+import android.hardware.usb.UsbDevice;
+import android.os.Handler;
+import android.os.Looper;
+import android.util.Log;
+import android.os.*;
+
+//import com.android.internal.util.HexDump;
+
+import java.lang.Runnable;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.UUID;
+
+class HIDDeviceBLESteamController extends BluetoothGattCallback implements HIDDevice {
+
+    private static final String TAG = "hidapi";
+    private HIDDeviceManager mManager;
+    private BluetoothDevice mDevice;
+    private int mDeviceId;
+    private BluetoothGatt mGatt;
+    private boolean mIsRegistered = false;
+    private boolean mIsConnected = false;
+    private boolean mIsChromebook = false;
+    private boolean mIsReconnecting = false;
+    private boolean mFrozen = false;
+    private LinkedList<GattOperation> mOperations;
+    GattOperation mCurrentOperation = null;
+    private Handler mHandler;
+
+    private static final int TRANSPORT_AUTO = 0;
+    private static final int TRANSPORT_BREDR = 1;
+    private static final int TRANSPORT_LE = 2;
+
+    private static final int CHROMEBOOK_CONNECTION_CHECK_INTERVAL = 10000;
+
+    static final UUID steamControllerService = UUID.fromString("100F6C32-1735-4313-B402-38567131E5F3");
+    static final UUID inputCharacteristic = UUID.fromString("100F6C33-1735-4313-B402-38567131E5F3");
+    static final UUID reportCharacteristic = UUID.fromString("100F6C34-1735-4313-B402-38567131E5F3");
+    static private final byte[] enterValveMode = new byte[] { (byte)0xC0, (byte)0x87, 0x03, 0x08, 0x07, 0x00 };
+
+    static class GattOperation {
+        private enum Operation {
+            CHR_READ,
+            CHR_WRITE,
+            ENABLE_NOTIFICATION
+        }
+
+        Operation mOp;
+        UUID mUuid;
+        byte[] mValue;
+        BluetoothGatt mGatt;
+        boolean mResult = true;
+
+        private GattOperation(BluetoothGatt gatt, GattOperation.Operation operation, UUID uuid) {
+            mGatt = gatt;
+            mOp = operation;
+            mUuid = uuid;
+        }
+
+        private GattOperation(BluetoothGatt gatt, GattOperation.Operation operation, UUID uuid, byte[] value) {
+            mGatt = gatt;
+            mOp = operation;
+            mUuid = uuid;
+            mValue = value;
+        }
+
+        public void run() {
+            // This is executed in main thread
+            BluetoothGattCharacteristic chr;
+
+            switch (mOp) {
+                case CHR_READ:
+                    chr = getCharacteristic(mUuid);
+                    //Log.v(TAG, "Reading characteristic " + chr.getUuid());
+                    if (!mGatt.readCharacteristic(chr)) {
+                        Log.e(TAG, "Unable to read characteristic " + mUuid.toString());
+                        mResult = false;
+                        break;
+                    }
+                    mResult = true;
+                    break;
+                case CHR_WRITE:
+                    chr = getCharacteristic(mUuid);
+                    //Log.v(TAG, "Writing characteristic " + chr.getUuid() + " value=" + HexDump.toHexString(value));
+                    chr.setValue(mValue);
+                    if (!mGatt.writeCharacteristic(chr)) {
+                        Log.e(TAG, "Unable to write characteristic " + mUuid.toString());
+                        mResult = false;
+                        break;
+                    }
+                    mResult = true;
+                    break;
+                case ENABLE_NOTIFICATION:
+                    chr = getCharacteristic(mUuid);
+                    //Log.v(TAG, "Writing descriptor of " + chr.getUuid());
+                    if (chr != null) {
+                        BluetoothGattDescriptor cccd = chr.getDescriptor(UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"));
+                        if (cccd != null) {
+                            int properties = chr.getProperties();
+                            byte[] value;
+                            if ((properties & BluetoothGattCharacteristic.PROPERTY_NOTIFY) == BluetoothGattCharacteristic.PROPERTY_NOTIFY) {
+                                value = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
+                            } else if ((properties & BluetoothGattCharacteristic.PROPERTY_INDICATE) == BluetoothGattCharacteristic.PROPERTY_INDICATE) {
+                                value = BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
+                            } else {
+                                Log.e(TAG, "Unable to start notifications on input characteristic");
+                                mResult = false;
+                                return;
+                            }
+
+                            mGatt.setCharacteristicNotification(chr, true);
+                            cccd.setValue(value);
+                            if (!mGatt.writeDescriptor(cccd)) {
+                                Log.e(TAG, "Unable to write descriptor " + mUuid.toString());
+                                mResult = false;
+                                return;
+                            }
+                            mResult = true;
+                        }
+                    }
+            }
+        }
+
+        public boolean finish() {
+            return mResult;
+        }
+
+        private BluetoothGattCharacteristic getCharacteristic(UUID uuid) {
+            BluetoothGattService valveService = mGatt.getService(steamControllerService);
+            if (valveService == null)
+                return null;
+            return valveService.getCharacteristic(uuid);
+        }
+
+        static public GattOperation readCharacteristic(BluetoothGatt gatt, UUID uuid) {
+            return new GattOperation(gatt, Operation.CHR_READ, uuid);
+        }
+
+        static public GattOperation writeCharacteristic(BluetoothGatt gatt, UUID uuid, byte[] value) {
+            return new GattOperation(gatt, Operation.CHR_WRITE, uuid, value);
+        }
+
+        static public GattOperation enableNotification(BluetoothGatt gatt, UUID uuid) {
+            return new GattOperation(gatt, Operation.ENABLE_NOTIFICATION, uuid);
+        }
+    }
+
+    HIDDeviceBLESteamController(HIDDeviceManager manager, BluetoothDevice device) {
+        mManager = manager;
+        mDevice = device;
+        mDeviceId = mManager.getDeviceIDForIdentifier(getIdentifier());
+        mIsRegistered = false;
+        mIsChromebook = mManager.getContext().getPackageManager().hasSystemFeature("org.chromium.arc.device_management");
+        mOperations = new LinkedList<GattOperation>();
+        mHandler = new Handler(Looper.getMainLooper());
+
+        mGatt = connectGatt();
+        // final HIDDeviceBLESteamController finalThis = this;
+        // mHandler.postDelayed(new Runnable() {
+        //     @Override
+        //     void run() {
+        //         finalThis.checkConnectionForChromebookIssue();
+        //     }
+        // }, CHROMEBOOK_CONNECTION_CHECK_INTERVAL);
+    }
+
+    String getIdentifier() {
+        return String.format("SteamController.%s", mDevice.getAddress());
+    }
+
+    BluetoothGatt getGatt() {
+        return mGatt;
+    }
+
+    // Because on Chromebooks we show up as a dual-mode device, it will attempt to connect TRANSPORT_AUTO, which will use TRANSPORT_BREDR instead
+    // of TRANSPORT_LE.  Let's force ourselves to connect low energy.
+    private BluetoothGatt connectGatt(boolean managed) {
+        if (Build.VERSION.SDK_INT >= 23 /* Android 6.0 (M) */) {
+            try {
+                return mDevice.connectGatt(mManager.getContext(), managed, this, TRANSPORT_LE);
+            } catch (Exception e) {
+                return mDevice.connectGatt(mManager.getContext(), managed, this);
+            }
+        } else {
+            return mDevice.connectGatt(mManager.getContext(), managed, this);
+        }
+    }
+
+    private BluetoothGatt connectGatt() {
+        return connectGatt(false);
+    }
+
+    protected int getConnectionState() {
+
+        Context context = mManager.getContext();
+        if (context == null) {
+            // We are lacking any context to get our Bluetooth information.  We'll just assume disconnected.
+            return BluetoothProfile.STATE_DISCONNECTED;
+        }
+
+        BluetoothManager btManager = (BluetoothManager)context.getSystemService(Context.BLUETOOTH_SERVICE);
+        if (btManager == null) {
+            // This device doesn't support Bluetooth.  We should never be here, because how did
+            // we instantiate a device to start with?
+            return BluetoothProfile.STATE_DISCONNECTED;
+        }
+
+        return btManager.getConnectionState(mDevice, BluetoothProfile.GATT);
+    }
+
+    void reconnect() {
+
+        if (getConnectionState() != BluetoothProfile.STATE_CONNECTED) {
+            mGatt.disconnect();
+            mGatt = connectGatt();
+        }
+
+    }
+
+    protected void checkConnectionForChromebookIssue() {
+        if (!mIsChromebook) {
+            // We only do this on Chromebooks, because otherwise it's really annoying to just attempt
+            // over and over.
+            return;
+        }
+
+        int connectionState = getConnectionState();
+
+        switch (connectionState) {
+            case BluetoothProfile.STATE_CONNECTED:
+                if (!mIsConnected) {
+                    // We are in the Bad Chromebook Place.  We can force a disconnect
+                    // to try to recover.
+                    Log.v(TAG, "Chromebook: We are in a very bad state; the controller shows as connected in the underlying Bluetooth layer, but we never received a callback.  Forcing a reconnect.");
+                    mIsReconnecting = true;
+                    mGatt.disconnect();
+                    mGatt = connectGatt(false);
+                    break;
+                }
+                else if (!isRegistered()) {
+                    if (mGatt.getServices().size() > 0) {
+                        Log.v(TAG, "Chromebook: We are connected to a controller, but never got our registration.  Trying to recover.");
+                        probeService(this);
+                    }
+                    else {
+                        Log.v(TAG, "Chromebook: We are connected to a controller, but never discovered services.  Trying to recover.");
+                        mIsReconnecting = true;
+                        mGatt.disconnect();
+                        mGatt = connectGatt(false);
+                        break;
+                    }
+                }
+                else {
+                    Log.v(TAG, "Chromebook: We are connected, and registered.  Everything's good!");
+                    return;
+                }
+                break;
+
+            case BluetoothProfile.STATE_DISCONNECTED:
+                Log.v(TAG, "Chromebook: We have either been disconnected, or the Chromebook BtGatt.ContextMap bug has bitten us.  Attempting a disconnect/reconnect, but we may not be able to recover.");
+
+                mIsReconnecting = true;
+                mGatt.disconnect();
+                mGatt = connectGatt(false);
+                break;
+
+            case BluetoothProfile.STATE_CONNECTING:
+                Log.v(TAG, "Chromebook: We're still trying to connect.  Waiting a bit longer.");
+                break;
+        }
+
+        final HIDDeviceBLESteamController finalThis = this;
+        mHandler.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                finalThis.checkConnectionForChromebookIssue();
+            }
+        }, CHROMEBOOK_CONNECTION_CHECK_INTERVAL);
+    }
+
+    private boolean isRegistered() {
+        return mIsRegistered;
+    }
+
+    private void setRegistered() {
+        mIsRegistered = true;
+    }
+
+    private boolean probeService(HIDDeviceBLESteamController controller) {
+
+        if (isRegistered()) {
+            return true;
+        }
+
+        if (!mIsConnected) {
+            return false;
+        }
+
+        Log.v(TAG, "probeService controller=" + controller);
+
+        for (BluetoothGattService service : mGatt.getServices()) {
+            if (service.getUuid().equals(steamControllerService)) {
+                Log.v(TAG, "Found Valve steam controller service " + service.getUuid());
+
+                for (BluetoothGattCharacteristic chr : service.getCharacteristics()) {
+                    if (chr.getUuid().equals(inputCharacteristic)) {
+                        Log.v(TAG, "Found input characteristic");
+                        // Start notifications
+                        BluetoothGattDescriptor cccd = chr.getDescriptor(UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"));
+                        if (cccd != null) {
+                            enableNotification(chr.getUuid());
+                        }
+                    }
+                }
+                return true;
+            }
+        }
+
+        if ((mGatt.getServices().size() == 0) && mIsChromebook && !mIsReconnecting) {
+            Log.e(TAG, "Chromebook: Discovered services were empty; this almost certainly means the BtGatt.ContextMap bug has bitten us.");
+            mIsConnected = false;
+            mIsReconnecting = true;
+            mGatt.disconnect();
+            mGatt = connectGatt(false);
+        }
+
+        return false;
+    }
+
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+
+    private void finishCurrentGattOperation() {
+        GattOperation op = null;
+        synchronized (mOperations) {
+            if (mCurrentOperation != null) {
+                op = mCurrentOperation;
+                mCurrentOperation = null;
+            }
+        }
+        if (op != null) {
+            boolean result = op.finish(); // TODO: Maybe in main thread as well?
+
+            // Our operation failed, let's add it back to the beginning of our queue.
+            if (!result) {
+                mOperations.addFirst(op);
+            }
+        }
+        executeNextGattOperation();
+    }
+
+    private void executeNextGattOperation() {
+        synchronized (mOperations) {
+            if (mCurrentOperation != null)
+                return;
+
+            if (mOperations.isEmpty())
+                return;
+
+            mCurrentOperation = mOperations.removeFirst();
+        }
+
+        // Run in main thread
+        mHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                synchronized (mOperations) {
+                    if (mCurrentOperation == null) {
+                        Log.e(TAG, "Current operation null in executor?");
+                        return;
+                    }
+
+                    mCurrentOperation.run();
+                    // now wait for the GATT callback and when it comes, finish this operation
+                }
+            }
+        });
+    }
+
+    private void queueGattOperation(GattOperation op) {
+        synchronized (mOperations) {
+            mOperations.add(op);
+        }
+        executeNextGattOperation();
+    }
+
+    private void enableNotification(UUID chrUuid) {
+        GattOperation op = HIDDeviceBLESteamController.GattOperation.enableNotification(mGatt, chrUuid);
+        queueGattOperation(op);
+    }
+
+    void writeCharacteristic(UUID uuid, byte[] value) {
+        GattOperation op = HIDDeviceBLESteamController.GattOperation.writeCharacteristic(mGatt, uuid, value);
+        queueGattOperation(op);
+    }
+
+    void readCharacteristic(UUID uuid) {
+        GattOperation op = HIDDeviceBLESteamController.GattOperation.readCharacteristic(mGatt, uuid);
+        queueGattOperation(op);
+    }
+
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+    //////////////  BluetoothGattCallback overridden methods
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+
+    @Override
+    public void onConnectionStateChange(BluetoothGatt g, int status, int newState) {
+        //Log.v(TAG, "onConnectionStateChange status=" + status + " newState=" + newState);
+        mIsReconnecting = false;
+        if (newState == 2) {
+            mIsConnected = true;
+            // Run directly, without GattOperation
+            if (!isRegistered()) {
+                mHandler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        mGatt.discoverServices();
+                    }
+                });
+            }
+        }
+        else if (newState == 0) {
+            mIsConnected = false;
+        }
+
+        // Disconnection is handled in SteamLink using the ACTION_ACL_DISCONNECTED Intent.
+    }
+
+    @Override
+    public void onServicesDiscovered(BluetoothGatt gatt, int status) {
+        //Log.v(TAG, "onServicesDiscovered status=" + status);
+        if (status == 0) {
+            if (gatt.getServices().size() == 0) {
+                Log.v(TAG, "onServicesDiscovered returned zero services; something has gone horribly wrong down in Android's Bluetooth stack.");
+                mIsReconnecting = true;
+                mIsConnected = false;
+                gatt.disconnect();
+                mGatt = connectGatt(false);
+            }
+            else {
+                probeService(this);
+            }
+        }
+    }
+
+    @Override
+    public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
+        //Log.v(TAG, "onCharacteristicRead status=" + status + " uuid=" + characteristic.getUuid());
+
+        if (characteristic.getUuid().equals(reportCharacteristic) && !mFrozen) {
+            mManager.HIDDeviceReportResponse(getId(), characteristic.getValue());
+        }
+
+        finishCurrentGattOperation();
+    }
+
+    @Override
+    public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
+        //Log.v(TAG, "onCharacteristicWrite status=" + status + " uuid=" + characteristic.getUuid());
+
+        if (characteristic.getUuid().equals(reportCharacteristic)) {
+            // Only register controller with the native side once it has been fully configured
+            if (!isRegistered()) {
+                Log.v(TAG, "Registering Steam Controller with ID: " + getId());
+                mManager.HIDDeviceConnected(getId(), getIdentifier(), getVendorId(), getProductId(), getSerialNumber(), getVersion(), getManufacturerName(), getProductName(), 0, 0, 0, 0, true);
+                setRegistered();
+            }
+        }
+
+        finishCurrentGattOperation();
+    }
+
+    @Override
+    public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
+    // Enable this for verbose logging of controller input reports
+        //Log.v(TAG, "onCharacteristicChanged uuid=" + characteristic.getUuid() + " data=" + HexDump.dumpHexString(characteristic.getValue()));
+
+        if (characteristic.getUuid().equals(inputCharacteristic) && !mFrozen) {
+            mManager.HIDDeviceInputReport(getId(), characteristic.getValue());
+        }
+    }
+
+    @Override
+    public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
+        //Log.v(TAG, "onDescriptorRead status=" + status);
+    }
+
+    @Override
+    public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
+        BluetoothGattCharacteristic chr = descriptor.getCharacteristic();
+        //Log.v(TAG, "onDescriptorWrite status=" + status + " uuid=" + chr.getUuid() + " descriptor=" + descriptor.getUuid());
+
+        if (chr.getUuid().equals(inputCharacteristic)) {
+            boolean hasWrittenInputDescriptor = true;
+            BluetoothGattCharacteristic reportChr = chr.getService().getCharacteristic(reportCharacteristic);
+            if (reportChr != null) {
+                Log.v(TAG, "Writing report characteristic to enter valve mode");
+                reportChr.setValue(enterValveMode);
+                gatt.writeCharacteristic(reportChr);
+            }
+        }
+
+        finishCurrentGattOperation();
+    }
+
+    @Override
+    public void onReliableWriteCompleted(BluetoothGatt gatt, int status) {
+        //Log.v(TAG, "onReliableWriteCompleted status=" + status);
+    }
+
+    @Override
+    public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
+        //Log.v(TAG, "onReadRemoteRssi status=" + status);
+    }
+
+    @Override
+    public void onMtuChanged(BluetoothGatt gatt, int mtu, int status) {
+        //Log.v(TAG, "onMtuChanged status=" + status);
+    }
+
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+    //////// Public API
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+
+    @Override
+    public int getId() {
+        return mDeviceId;
+    }
+
+    @Override
+    public int getVendorId() {
+        // Valve Corporation
+        final int VALVE_USB_VID = 0x28DE;
+        return VALVE_USB_VID;
+    }
+
+    @Override
+    public int getProductId() {
+        // We don't have an easy way to query from the Bluetooth device, but we know what it is
+        final int D0G_BLE2_PID = 0x1106;
+        return D0G_BLE2_PID;
+    }
+
+    @Override
+    public String getSerialNumber() {
+        // This will be read later via feature report by Steam
+        return "12345";
+    }
+
+    @Override
+    public int getVersion() {
+        return 0;
+    }
+
+    @Override
+    public String getManufacturerName() {
+        return "Valve Corporation";
+    }
+
+    @Override
+    public String getProductName() {
+        return "Steam Controller";
+    }
+
+    @Override
+    public UsbDevice getDevice() {
+        return null;
+    }
+
+    @Override
+    public boolean open() {
+        return true;
+    }
+
+    @Override
+    public int writeReport(byte[] report, boolean feature) {
+        if (!isRegistered()) {
+            Log.e(TAG, "Attempted writeReport before Steam Controller is registered!");
+            if (mIsConnected) {
+                probeService(this);
+            }
+            return -1;
+        }
+
+        if (feature) {
+            // We need to skip the first byte, as that doesn't go over the air
+            byte[] actual_report = Arrays.copyOfRange(report, 1, report.length - 1);
+            //Log.v(TAG, "writeFeatureReport " + HexDump.dumpHexString(actual_report));
+            writeCharacteristic(reportCharacteristic, actual_report);
+            return report.length;
+        } else {
+            //Log.v(TAG, "writeOutputReport " + HexDump.dumpHexString(report));
+            writeCharacteristic(reportCharacteristic, report);
+            return report.length;
+        }
+    }
+
+    @Override
+    public boolean readReport(byte[] report, boolean feature) {
+        if (!isRegistered()) {
+            Log.e(TAG, "Attempted readReport before Steam Controller is registered!");
+            if (mIsConnected) {
+                probeService(this);
+            }
+            return false;
+        }
+
+        if (feature) {
+            readCharacteristic(reportCharacteristic);
+            return true;
+        } else {
+            // Not implemented
+            return false;
+        }
+    }
+
+    @Override
+    public void close() {
+    }
+
+    @Override
+    public void setFrozen(boolean frozen) {
+        mFrozen = frozen;
+    }
+
+    @Override
+    public void shutdown() {
+        close();
+
+        BluetoothGatt g = mGatt;
+        if (g != null) {
+            g.disconnect();
+            g.close();
+            mGatt = null;
+        }
+        mManager = null;
+        mIsRegistered = false;
+        mIsConnected = false;
+        mOperations.clear();
+    }
+
+}
+

android-project/app/src/main/java/org/libsdl/app/HIDDeviceManager.java

@@ -0,0 +1,693 @@
+package org.libsdl.app;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.PendingIntent;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothManager;
+import android.bluetooth.BluetoothProfile;
+import android.os.Build;
+import android.util.Log;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.hardware.usb.*;
+import android.os.Handler;
+import android.os.Looper;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+
+public class HIDDeviceManager {
+    private static final String TAG = "hidapi";
+    private static final String ACTION_USB_PERMISSION = "org.libsdl.app.USB_PERMISSION";
+
+    private static HIDDeviceManager sManager;
+    private static int sManagerRefCount = 0;
+
+    static public HIDDeviceManager acquire(Context context) {
+        if (sManagerRefCount == 0) {
+            sManager = new HIDDeviceManager(context);
+        }
+        ++sManagerRefCount;
+        return sManager;
+    }
+
+    static public void release(HIDDeviceManager manager) {
+        if (manager == sManager) {
+            --sManagerRefCount;
+            if (sManagerRefCount == 0) {
+                sManager.close();
+                sManager = null;
+            }
+        }
+    }
+
+    private Context mContext;
+    private HashMap<Integer, HIDDevice> mDevicesById = new HashMap<Integer, HIDDevice>();
+    private HashMap<BluetoothDevice, HIDDeviceBLESteamController> mBluetoothDevices = new HashMap<BluetoothDevice, HIDDeviceBLESteamController>();
+    private int mNextDeviceId = 0;
+    private SharedPreferences mSharedPreferences = null;
+    private boolean mIsChromebook = false;
+    private UsbManager mUsbManager;
+    private Handler mHandler;
+    private BluetoothManager mBluetoothManager;
+    private List<BluetoothDevice> mLastBluetoothDevices;
+
+    private final BroadcastReceiver mUsbBroadcast = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+            if (action.equals(UsbManager.ACTION_USB_DEVICE_ATTACHED)) {
+                UsbDevice usbDevice = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
+                handleUsbDeviceAttached(usbDevice);
+            } else if (action.equals(UsbManager.ACTION_USB_DEVICE_DETACHED)) {
+                UsbDevice usbDevice = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
+                handleUsbDeviceDetached(usbDevice);
+            } else if (action.equals(HIDDeviceManager.ACTION_USB_PERMISSION)) {
+                UsbDevice usbDevice = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
+                handleUsbDevicePermission(usbDevice, intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false));
+            }
+        }
+    };
+
+    private final BroadcastReceiver mBluetoothBroadcast = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+            // Bluetooth device was connected. If it was a Steam Controller, handle it
+            if (action.equals(BluetoothDevice.ACTION_ACL_CONNECTED)) {
+                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+                Log.d(TAG, "Bluetooth device connected: " + device);
+
+                if (isSteamController(device)) {
+                    connectBluetoothDevice(device);
+                }
+            }
+
+            // Bluetooth device was disconnected, remove from controller manager (if any)
+            if (action.equals(BluetoothDevice.ACTION_ACL_DISCONNECTED)) {
+                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+                Log.d(TAG, "Bluetooth device disconnected: " + device);
+
+                disconnectBluetoothDevice(device);
+            }
+        }
+    };
+
+    private HIDDeviceManager(final Context context) {
+        mContext = context;
+
+        HIDDeviceRegisterCallback();
+
+        mSharedPreferences = mContext.getSharedPreferences("hidapi", Context.MODE_PRIVATE);
+        mIsChromebook = mContext.getPackageManager().hasSystemFeature("org.chromium.arc.device_management");
+
+//        if (shouldClear) {
+//            SharedPreferences.Editor spedit = mSharedPreferences.edit();
+//            spedit.clear();
+//            spedit.commit();
+//        }
+//        else
+        {
+            mNextDeviceId = mSharedPreferences.getInt("next_device_id", 0);
+        }
+    }
+
+    Context getContext() {
+        return mContext;
+    }
+
+    int getDeviceIDForIdentifier(String identifier) {
+        SharedPreferences.Editor spedit = mSharedPreferences.edit();
+
+        int result = mSharedPreferences.getInt(identifier, 0);
+        if (result == 0) {
+            result = mNextDeviceId++;
+            spedit.putInt("next_device_id", mNextDeviceId);
+        }
+
+        spedit.putInt(identifier, result);
+        spedit.commit();
+        return result;
+    }
+
+    private void initializeUSB() {
+        mUsbManager = (UsbManager)mContext.getSystemService(Context.USB_SERVICE);
+        if (mUsbManager == null) {
+            return;
+        }
+
+        /*
+        // Logging
+        for (UsbDevice device : mUsbManager.getDeviceList().values()) {
+            Log.i(TAG,"Path: " + device.getDeviceName());
+            Log.i(TAG,"Manufacturer: " + device.getManufacturerName());
+            Log.i(TAG,"Product: " + device.getProductName());
+            Log.i(TAG,"ID: " + device.getDeviceId());
+            Log.i(TAG,"Class: " + device.getDeviceClass());
+            Log.i(TAG,"Protocol: " + device.getDeviceProtocol());
+            Log.i(TAG,"Vendor ID " + device.getVendorId());
+            Log.i(TAG,"Product ID: " + device.getProductId());
+            Log.i(TAG,"Interface count: " + device.getInterfaceCount());
+            Log.i(TAG,"---------------------------------------");
+
+            // Get interface details
+            for (int index = 0; index < device.getInterfaceCount(); index++) {
+                UsbInterface mUsbInterface = device.getInterface(index);
+                Log.i(TAG,"  *****     *****");
+                Log.i(TAG,"  Interface index: " + index);
+                Log.i(TAG,"  Interface ID: " + mUsbInterface.getId());
+                Log.i(TAG,"  Interface class: " + mUsbInterface.getInterfaceClass());
+                Log.i(TAG,"  Interface subclass: " + mUsbInterface.getInterfaceSubclass());
+                Log.i(TAG,"  Interface protocol: " + mUsbInterface.getInterfaceProtocol());
+                Log.i(TAG,"  Endpoint count: " + mUsbInterface.getEndpointCount());
+
+                // Get endpoint details
+                for (int epi = 0; epi < mUsbInterface.getEndpointCount(); epi++)
+                {
+                    UsbEndpoint mEndpoint = mUsbInterface.getEndpoint(epi);
+                    Log.i(TAG,"    ++++   ++++   ++++");
+                    Log.i(TAG,"    Endpoint index: " + epi);
+                    Log.i(TAG,"    Attributes: " + mEndpoint.getAttributes());
+                    Log.i(TAG,"    Direction: " + mEndpoint.getDirection());
+                    Log.i(TAG,"    Number: " + mEndpoint.getEndpointNumber());
+                    Log.i(TAG,"    Interval: " + mEndpoint.getInterval());
+                    Log.i(TAG,"    Packet size: " + mEndpoint.getMaxPacketSize());
+                    Log.i(TAG,"    Type: " + mEndpoint.getType());
+                }
+            }
+        }
+        Log.i(TAG," No more devices connected.");
+        */
+
+        // Register for USB broadcasts and permission completions
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);
+        filter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);
+        filter.addAction(HIDDeviceManager.ACTION_USB_PERMISSION);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            mContext.registerReceiver(mUsbBroadcast, filter, Context.RECEIVER_EXPORTED);
+        } else {
+            mContext.registerReceiver(mUsbBroadcast, filter);
+        }
+
+        for (UsbDevice usbDevice : mUsbManager.getDeviceList().values()) {
+            handleUsbDeviceAttached(usbDevice);
+        }
+    }
+
+    UsbManager getUSBManager() {
+        return mUsbManager;
+    }
+
+    private void shutdownUSB() {
+        try {
+            mContext.unregisterReceiver(mUsbBroadcast);
+        } catch (Exception e) {
+            // We may not have registered, that's okay
+        }
+    }
+
+    private boolean isHIDDeviceInterface(UsbDevice usbDevice, UsbInterface usbInterface) {
+        if (usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_HID) {
+            return true;
+        }
+        if (isXbox360Controller(usbDevice, usbInterface) || isXboxOneController(usbDevice, usbInterface)) {
+            return true;
+        }
+        return false;
+    }
+
+    private boolean isXbox360Controller(UsbDevice usbDevice, UsbInterface usbInterface) {
+        final int XB360_IFACE_SUBCLASS = 93;
+        final int XB360_IFACE_PROTOCOL = 1; // Wired
+        final int XB360W_IFACE_PROTOCOL = 129; // Wireless
+        final int[] SUPPORTED_VENDORS = {
+            0x0079, // GPD Win 2
+            0x044f, // Thrustmaster
+            0x045e, // Microsoft
+            0x046d, // Logitech
+            0x056e, // Elecom
+            0x06a3, // Saitek
+            0x0738, // Mad Catz
+            0x07ff, // Mad Catz
+            0x0e6f, // PDP
+            0x0f0d, // Hori
+            0x1038, // SteelSeries
+            0x11c9, // Nacon
+            0x12ab, // Unknown
+            0x1430, // RedOctane
+            0x146b, // BigBen
+            0x1532, // Razer Sabertooth
+            0x15e4, // Numark
+            0x162e, // Joytech
+            0x1689, // Razer Onza
+            0x1949, // Lab126, Inc.
+            0x1bad, // Harmonix
+            0x20d6, // PowerA
+            0x24c6, // PowerA
+            0x2c22, // Qanba
+            0x2dc8, // 8BitDo
+            0x9886, // ASTRO Gaming
+        };
+
+        if (usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_VENDOR_SPEC &&
+            usbInterface.getInterfaceSubclass() == XB360_IFACE_SUBCLASS &&
+            (usbInterface.getInterfaceProtocol() == XB360_IFACE_PROTOCOL ||
+             usbInterface.getInterfaceProtocol() == XB360W_IFACE_PROTOCOL)) {
+            int vendor_id = usbDevice.getVendorId();
+            for (int supportedVid : SUPPORTED_VENDORS) {
+                if (vendor_id == supportedVid) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    private boolean isXboxOneController(UsbDevice usbDevice, UsbInterface usbInterface) {
+        final int XB1_IFACE_SUBCLASS = 71;
+        final int XB1_IFACE_PROTOCOL = 208;
+        final int[] SUPPORTED_VENDORS = {
+            0x03f0, // HP
+            0x044f, // Thrustmaster
+            0x045e, // Microsoft
+            0x0738, // Mad Catz
+            0x0b05, // ASUS
+            0x0e6f, // PDP
+            0x0f0d, // Hori
+            0x10f5, // Turtle Beach
+            0x1532, // Razer Wildcat
+            0x20d6, // PowerA
+            0x24c6, // PowerA
+            0x294b, // Snakebyte
+            0x2dc8, // 8BitDo
+            0x2e24, // Hyperkin
+            0x2e95, // SCUF
+            0x3285, // Nacon
+            0x3537, // GameSir
+            0x366c, // ByoWave
+        };
+
+        if (usbInterface.getId() == 0 &&
+            usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_VENDOR_SPEC &&
+            usbInterface.getInterfaceSubclass() == XB1_IFACE_SUBCLASS &&
+            usbInterface.getInterfaceProtocol() == XB1_IFACE_PROTOCOL) {
+            int vendor_id = usbDevice.getVendorId();
+            for (int supportedVid : SUPPORTED_VENDORS) {
+                if (vendor_id == supportedVid) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    private void handleUsbDeviceAttached(UsbDevice usbDevice) {
+        connectHIDDeviceUSB(usbDevice);
+    }
+
+    private void handleUsbDeviceDetached(UsbDevice usbDevice) {
+        List<Integer> devices = new ArrayList<Integer>();
+        for (HIDDevice device : mDevicesById.values()) {
+            if (usbDevice.equals(device.getDevice())) {
+                devices.add(device.getId());
+            }
+        }
+        for (int id : devices) {
+            HIDDevice device = mDevicesById.get(id);
+            mDevicesById.remove(id);
+            device.shutdown();
+            HIDDeviceDisconnected(id);
+        }
+    }
+
+    private void handleUsbDevicePermission(UsbDevice usbDevice, boolean permission_granted) {
+        for (HIDDevice device : mDevicesById.values()) {
+            if (usbDevice.equals(device.getDevice())) {
+                boolean opened = false;
+                if (permission_granted) {
+                    opened = device.open();
+                }
+                HIDDeviceOpenResult(device.getId(), opened);
+            }
+        }
+    }
+
+    private void connectHIDDeviceUSB(UsbDevice usbDevice) {
+        synchronized (this) {
+            int interface_mask = 0;
+            for (int interface_index = 0; interface_index < usbDevice.getInterfaceCount(); interface_index++) {
+                UsbInterface usbInterface = usbDevice.getInterface(interface_index);
+                if (isHIDDeviceInterface(usbDevice, usbInterface)) {
+                    // Check to see if we've already added this interface
+                    // This happens with the Xbox Series X controller which has a duplicate interface 0, which is inactive
+                    int interface_id = usbInterface.getId();
+                    if ((interface_mask & (1 << interface_id)) != 0) {
+                        continue;
+                    }
+                    interface_mask |= (1 << interface_id);
+
+                    HIDDeviceUSB device = new HIDDeviceUSB(this, usbDevice, interface_index);
+                    int id = device.getId();
+                    mDevicesById.put(id, device);
+                    HIDDeviceConnected(id, device.getIdentifier(), device.getVendorId(), device.getProductId(), device.getSerialNumber(), device.getVersion(), device.getManufacturerName(), device.getProductName(), usbInterface.getId(), usbInterface.getInterfaceClass(), usbInterface.getInterfaceSubclass(), usbInterface.getInterfaceProtocol(), false);
+                }
+            }
+        }
+    }
+
+    private void initializeBluetooth() {
+        Log.d(TAG, "Initializing Bluetooth");
+
+        if (Build.VERSION.SDK_INT >= 31 /* Android 12  */ &&
+            mContext.getPackageManager().checkPermission(android.Manifest.permission.BLUETOOTH_CONNECT, mContext.getPackageName()) != PackageManager.PERMISSION_GRANTED) {
+            Log.d(TAG, "Couldn't initialize Bluetooth, missing android.permission.BLUETOOTH_CONNECT");
+            return;
+        }
+
+        if (Build.VERSION.SDK_INT <= 30 /* Android 11.0 (R) */ &&
+            mContext.getPackageManager().checkPermission(android.Manifest.permission.BLUETOOTH, mContext.getPackageName()) != PackageManager.PERMISSION_GRANTED) {
+            Log.d(TAG, "Couldn't initialize Bluetooth, missing android.permission.BLUETOOTH");
+            return;
+        }
+
+        if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE) || (Build.VERSION.SDK_INT < 18 /* Android 4.3 (JELLY_BEAN_MR2) */)) {
+            Log.d(TAG, "Couldn't initialize Bluetooth, this version of Android does not support Bluetooth LE");
+            return;
+        }
+
+        // Find bonded bluetooth controllers and create SteamControllers for them
+        mBluetoothManager = (BluetoothManager)mContext.getSystemService(Context.BLUETOOTH_SERVICE);
+        if (mBluetoothManager == null) {
+            // This device doesn't support Bluetooth.
+            return;
+        }
+
+        BluetoothAdapter btAdapter = mBluetoothManager.getAdapter();
+        if (btAdapter == null) {
+            // This device has Bluetooth support in the codebase, but has no available adapters.
+            return;
+        }
+
+        // Get our bonded devices.
+        for (BluetoothDevice device : btAdapter.getBondedDevices()) {
+
+            Log.d(TAG, "Bluetooth device available: " + device);
+            if (isSteamController(device)) {
+                connectBluetoothDevice(device);
+            }
+
+        }
+
+        // NOTE: These don't work on Chromebooks, to my undying dismay.
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
+        filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            mContext.registerReceiver(mBluetoothBroadcast, filter, Context.RECEIVER_EXPORTED);
+        } else {
+            mContext.registerReceiver(mBluetoothBroadcast, filter);
+        }
+
+        if (mIsChromebook) {
+            mHandler = new Handler(Looper.getMainLooper());
+            mLastBluetoothDevices = new ArrayList<BluetoothDevice>();
+
+            // final HIDDeviceManager finalThis = this;
+            // mHandler.postDelayed(new Runnable() {
+            //     @Override
+            //     public void run() {
+            //         finalThis.chromebookConnectionHandler();
+            //     }
+            // }, 5000);
+        }
+    }
+
+    private void shutdownBluetooth() {
+        try {
+            mContext.unregisterReceiver(mBluetoothBroadcast);
+        } catch (Exception e) {
+            // We may not have registered, that's okay
+        }
+    }
+
+    // Chromebooks do not pass along ACTION_ACL_CONNECTED / ACTION_ACL_DISCONNECTED properly.
+    // This function provides a sort of dummy version of that, watching for changes in the
+    // connected devices and attempting to add controllers as things change.
+    void chromebookConnectionHandler() {
+        if (!mIsChromebook) {
+            return;
+        }
+
+        ArrayList<BluetoothDevice> disconnected = new ArrayList<BluetoothDevice>();
+        ArrayList<BluetoothDevice> connected = new ArrayList<BluetoothDevice>();
+
+        List<BluetoothDevice> currentConnected = mBluetoothManager.getConnectedDevices(BluetoothProfile.GATT);
+
+        for (BluetoothDevice bluetoothDevice : currentConnected) {
+            if (!mLastBluetoothDevices.contains(bluetoothDevice)) {
+                connected.add(bluetoothDevice);
+            }
+        }
+        for (BluetoothDevice bluetoothDevice : mLastBluetoothDevices) {
+            if (!currentConnected.contains(bluetoothDevice)) {
+                disconnected.add(bluetoothDevice);
+            }
+        }
+
+        mLastBluetoothDevices = currentConnected;
+
+        for (BluetoothDevice bluetoothDevice : disconnected) {
+            disconnectBluetoothDevice(bluetoothDevice);
+        }
+        for (BluetoothDevice bluetoothDevice : connected) {
+            connectBluetoothDevice(bluetoothDevice);
+        }
+
+        final HIDDeviceManager finalThis = this;
+        mHandler.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                finalThis.chromebookConnectionHandler();
+            }
+        }, 10000);
+    }
+
+    boolean connectBluetoothDevice(BluetoothDevice bluetoothDevice) {
+        Log.v(TAG, "connectBluetoothDevice device=" + bluetoothDevice);
+        synchronized (this) {
+            if (mBluetoothDevices.containsKey(bluetoothDevice)) {
+                Log.v(TAG, "Steam controller with address " + bluetoothDevice + " already exists, attempting reconnect");
+
+                HIDDeviceBLESteamController device = mBluetoothDevices.get(bluetoothDevice);
+                device.reconnect();
+
+                return false;
+            }
+            HIDDeviceBLESteamController device = new HIDDeviceBLESteamController(this, bluetoothDevice);
+            int id = device.getId();
+            mBluetoothDevices.put(bluetoothDevice, device);
+            mDevicesById.put(id, device);
+
+            // The Steam Controller will mark itself connected once initialization is complete
+        }
+        return true;
+    }
+
+    void disconnectBluetoothDevice(BluetoothDevice bluetoothDevice) {
+        synchronized (this) {
+            HIDDeviceBLESteamController device = mBluetoothDevices.get(bluetoothDevice);
+            if (device == null)
+                return;
+
+            int id = device.getId();
+            mBluetoothDevices.remove(bluetoothDevice);
+            mDevicesById.remove(id);
+            device.shutdown();
+            HIDDeviceDisconnected(id);
+        }
+    }
+
+    boolean isSteamController(BluetoothDevice bluetoothDevice) {
+        // Sanity check.  If you pass in a null device, by definition it is never a Steam Controller.
+        if (bluetoothDevice == null) {
+            return false;
+        }
+
+        // If the device has no local name, we really don't want to try an equality check against it.
+        if (bluetoothDevice.getName() == null) {
+            return false;
+        }
+
+        return bluetoothDevice.getName().equals("SteamController") && ((bluetoothDevice.getType() & BluetoothDevice.DEVICE_TYPE_LE) != 0);
+    }
+
+    private void close() {
+        shutdownUSB();
+        shutdownBluetooth();
+        synchronized (this) {
+            for (HIDDevice device : mDevicesById.values()) {
+                device.shutdown();
+            }
+            mDevicesById.clear();
+            mBluetoothDevices.clear();
+            HIDDeviceReleaseCallback();
+        }
+    }
+
+    public void setFrozen(boolean frozen) {
+        synchronized (this) {
+            for (HIDDevice device : mDevicesById.values()) {
+                device.setFrozen(frozen);
+            }
+        }
+    }
+
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+
+    private HIDDevice getDevice(int id) {
+        synchronized (this) {
+            HIDDevice result = mDevicesById.get(id);
+            if (result == null) {
+                Log.v(TAG, "No device for id: " + id);
+                Log.v(TAG, "Available devices: " + mDevicesById.keySet());
+            }
+            return result;
+        }
+    }
+
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+    ////////// JNI interface functions
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+
+    boolean initialize(boolean usb, boolean bluetooth) {
+        Log.v(TAG, "initialize(" + usb + ", " + bluetooth + ")");
+
+        if (usb) {
+            initializeUSB();
+        }
+        if (bluetooth) {
+            initializeBluetooth();
+        }
+        return true;
+    }
+
+    boolean openDevice(int deviceID) {
+        Log.v(TAG, "openDevice deviceID=" + deviceID);
+        HIDDevice device = getDevice(deviceID);
+        if (device == null) {
+            HIDDeviceDisconnected(deviceID);
+            return false;
+        }
+
+        // Look to see if this is a USB device and we have permission to access it
+        UsbDevice usbDevice = device.getDevice();
+        if (usbDevice != null && !mUsbManager.hasPermission(usbDevice)) {
+            HIDDeviceOpenPending(deviceID);
+            try {
+                final int FLAG_MUTABLE = 0x02000000; // PendingIntent.FLAG_MUTABLE, but don't require SDK 31
+                int flags;
+                if (Build.VERSION.SDK_INT >= 31 /* Android 12.0 (S) */) {
+                    flags = FLAG_MUTABLE;
+                } else {
+                    flags = 0;
+                }
+                if (Build.VERSION.SDK_INT >= 33 /* Android 14.0 (U) */) {
+                   Intent intent = new Intent(HIDDeviceManager.ACTION_USB_PERMISSION);
+                   intent.setPackage(mContext.getPackageName());
+                   mUsbManager.requestPermission(usbDevice, PendingIntent.getBroadcast(mContext, 0, intent, flags));
+               } else {
+                   mUsbManager.requestPermission(usbDevice, PendingIntent.getBroadcast(mContext, 0, new Intent(HIDDeviceManager.ACTION_USB_PERMISSION), flags));
+               }
+            } catch (Exception e) {
+                Log.v(TAG, "Couldn't request permission for USB device " + usbDevice);
+                HIDDeviceOpenResult(deviceID, false);
+            }
+            return false;
+        }
+
+        try {
+            return device.open();
+        } catch (Exception e) {
+            Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
+        }
+        return false;
+    }
+
+    int writeReport(int deviceID, byte[] report, boolean feature) {
+        try {
+            //Log.v(TAG, "writeReport deviceID=" + deviceID + " length=" + report.length);
+            HIDDevice device;
+            device = getDevice(deviceID);
+            if (device == null) {
+                HIDDeviceDisconnected(deviceID);
+                return -1;
+            }
+
+            return device.writeReport(report, feature);
+        } catch (Exception e) {
+            Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
+        }
+        return -1;
+    }
+
+    boolean readReport(int deviceID, byte[] report, boolean feature) {
+        try {
+            //Log.v(TAG, "readReport deviceID=" + deviceID);
+            HIDDevice device;
+            device = getDevice(deviceID);
+            if (device == null) {
+                HIDDeviceDisconnected(deviceID);
+                return false;
+            }
+
+            return device.readReport(report, feature);
+        } catch (Exception e) {
+            Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
+        }
+        return false;
+    }
+
+    void closeDevice(int deviceID) {
+        try {
+            Log.v(TAG, "closeDevice deviceID=" + deviceID);
+            HIDDevice device;
+            device = getDevice(deviceID);
+            if (device == null) {
+                HIDDeviceDisconnected(deviceID);
+                return;
+            }
+
+            device.close();
+        } catch (Exception e) {
+            Log.e(TAG, "Got exception: " + Log.getStackTraceString(e));
+        }
+    }
+
+
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+    /////////////// Native methods
+    //////////////////////////////////////////////////////////////////////////////////////////////////////
+
+    private native void HIDDeviceRegisterCallback();
+    private native void HIDDeviceReleaseCallback();
+
+    native void HIDDeviceConnected(int deviceID, String identifier, int vendorId, int productId, String serial_number, int release_number, String manufacturer_string, String product_string, int interface_number, int interface_class, int interface_subclass, int interface_protocol, boolean bBluetooth);
+    native void HIDDeviceOpenPending(int deviceID);
+    native void HIDDeviceOpenResult(int deviceID, boolean opened);
+    native void HIDDeviceDisconnected(int deviceID);
+
+    native void HIDDeviceInputReport(int deviceID, byte[] report);
+    native void HIDDeviceReportResponse(int deviceID, byte[] report);
+}

android-project/app/src/main/java/org/libsdl/app/HIDDeviceUSB.java

@@ -0,0 +1,318 @@
+package org.libsdl.app;
+
+import android.hardware.usb.*;
+import android.os.Build;
+import android.util.Log;
+import java.util.Arrays;
+
+class HIDDeviceUSB implements HIDDevice {
+
+    private static final String TAG = "hidapi";
+
+    protected HIDDeviceManager mManager;
+    protected UsbDevice mDevice;
+    protected int mInterfaceIndex;
+    protected int mInterface;
+    protected int mDeviceId;
+    protected UsbDeviceConnection mConnection;
+    protected UsbEndpoint mInputEndpoint;
+    protected UsbEndpoint mOutputEndpoint;
+    protected InputThread mInputThread;
+    protected boolean mRunning;
+    protected boolean mFrozen;
+
+    public HIDDeviceUSB(HIDDeviceManager manager, UsbDevice usbDevice, int interface_index) {
+        mManager = manager;
+        mDevice = usbDevice;
+        mInterfaceIndex = interface_index;
+        mInterface = mDevice.getInterface(mInterfaceIndex).getId();
+        mDeviceId = manager.getDeviceIDForIdentifier(getIdentifier());
+        mRunning = false;
+    }
+
+    String getIdentifier() {
+        return String.format("%s/%x/%x/%d", mDevice.getDeviceName(), mDevice.getVendorId(), mDevice.getProductId(), mInterfaceIndex);
+    }
+
+    @Override
+    public int getId() {
+        return mDeviceId;
+    }
+
+    @Override
+    public int getVendorId() {
+        return mDevice.getVendorId();
+    }
+
+    @Override
+    public int getProductId() {
+        return mDevice.getProductId();
+    }
+
+    @Override
+    public String getSerialNumber() {
+        String result = null;
+        if (Build.VERSION.SDK_INT >= 21 /* Android 5.0 (LOLLIPOP) */) {
+            try {
+                result = mDevice.getSerialNumber();
+            }
+            catch (SecurityException exception) {
+                //Log.w(TAG, "App permissions mean we cannot get serial number for device " + getDeviceName() + " message: " + exception.getMessage());
+            }
+        }
+        if (result == null) {
+            result = "";
+        }
+        return result;
+    }
+
+    @Override
+    public int getVersion() {
+        return 0;
+    }
+
+    @Override
+    public String getManufacturerName() {
+        String result = null;
+        if (Build.VERSION.SDK_INT >= 21 /* Android 5.0 (LOLLIPOP) */) {
+            result = mDevice.getManufacturerName();
+        }
+        if (result == null) {
+            result = String.format("%x", getVendorId());
+        }
+        return result;
+    }
+
+    @Override
+    public String getProductName() {
+        String result = null;
+        if (Build.VERSION.SDK_INT >= 21 /* Android 5.0 (LOLLIPOP) */) {
+            result = mDevice.getProductName();
+        }
+        if (result == null) {
+            result = String.format("%x", getProductId());
+        }
+        return result;
+    }
+
+    @Override
+    public UsbDevice getDevice() {
+        return mDevice;
+    }
+
+    String getDeviceName() {
+        return getManufacturerName() + " " + getProductName() + "(0x" + String.format("%x", getVendorId()) + "/0x" + String.format("%x", getProductId()) + ")";
+    }
+
+    @Override
+    public boolean open() {
+        mConnection = mManager.getUSBManager().openDevice(mDevice);
+        if (mConnection == null) {
+            Log.w(TAG, "Unable to open USB device " + getDeviceName());
+            return false;
+        }
+
+        // Force claim our interface
+        UsbInterface iface = mDevice.getInterface(mInterfaceIndex);
+        if (!mConnection.claimInterface(iface, true)) {
+            Log.w(TAG, "Failed to claim interfaces on USB device " + getDeviceName());
+            close();
+            return false;
+        }
+
+        // Find the endpoints
+        for (int j = 0; j < iface.getEndpointCount(); j++) {
+            UsbEndpoint endpt = iface.getEndpoint(j);
+            switch (endpt.getDirection()) {
+            case UsbConstants.USB_DIR_IN:
+                if (mInputEndpoint == null) {
+                    mInputEndpoint = endpt;
+                }
+                break;
+            case UsbConstants.USB_DIR_OUT:
+                if (mOutputEndpoint == null) {
+                    mOutputEndpoint = endpt;
+                }
+                break;
+            }
+        }
+
+        // Make sure the required endpoints were present
+        if (mInputEndpoint == null || mOutputEndpoint == null) {
+            Log.w(TAG, "Missing required endpoint on USB device " + getDeviceName());
+            close();
+            return false;
+        }
+
+        // Start listening for input
+        mRunning = true;
+        mInputThread = new InputThread();
+        mInputThread.start();
+
+        return true;
+    }
+
+    @Override
+    public int writeReport(byte[] report, boolean feature) {
+        if (mConnection == null) {
+            Log.w(TAG, "writeReport() called with no device connection");
+            return -1;
+        }
+
+        if (feature) {
+            int res = -1;
+            int offset = 0;
+            int length = report.length;
+            boolean skipped_report_id = false;
+            byte report_number = report[0];
+
+            if (report_number == 0x0) {
+                ++offset;
+                --length;
+                skipped_report_id = true;
+            }
+
+            res = mConnection.controlTransfer(
+                UsbConstants.USB_TYPE_CLASS | 0x01 /*RECIPIENT_INTERFACE*/ | UsbConstants.USB_DIR_OUT,
+                0x09/*HID set_report*/,
+                (3/*HID feature*/ << 8) | report_number,
+                mInterface,
+                report, offset, length,
+                1000/*timeout millis*/);
+
+            if (res < 0) {
+                Log.w(TAG, "writeFeatureReport() returned " + res + " on device " + getDeviceName());
+                return -1;
+            }
+
+            if (skipped_report_id) {
+                ++length;
+            }
+            return length;
+        } else {
+            int res = mConnection.bulkTransfer(mOutputEndpoint, report, report.length, 1000);
+            if (res != report.length) {
+                Log.w(TAG, "writeOutputReport() returned " + res + " on device " + getDeviceName());
+            }
+            return res;
+        }
+    }
+
+    @Override
+    public boolean readReport(byte[] report, boolean feature) {
+        int res = -1;
+        int offset = 0;
+        int length = report.length;
+        boolean skipped_report_id = false;
+        byte report_number = report[0];
+
+        if (mConnection == null) {
+            Log.w(TAG, "readReport() called with no device connection");
+            return false;
+        }
+
+        if (report_number == 0x0) {
+            /* Offset the return buffer by 1, so that the report ID
+               will remain in byte 0. */
+            ++offset;
+            --length;
+            skipped_report_id = true;
+        }
+
+        res = mConnection.controlTransfer(
+            UsbConstants.USB_TYPE_CLASS | 0x01 /*RECIPIENT_INTERFACE*/ | UsbConstants.USB_DIR_IN,
+            0x01/*HID get_report*/,
+            ((feature ? 3/*HID feature*/ : 1/*HID Input*/) << 8) | report_number,
+            mInterface,
+            report, offset, length,
+            1000/*timeout millis*/);
+
+        if (res < 0) {
+            Log.w(TAG, "getFeatureReport() returned " + res + " on device " + getDeviceName());
+            return false;
+        }
+
+        if (skipped_report_id) {
+            ++res;
+            ++length;
+        }
+
+        byte[] data;
+        if (res == length) {
+            data = report;
+        } else {
+            data = Arrays.copyOfRange(report, 0, res);
+        }
+        mManager.HIDDeviceReportResponse(mDeviceId, data);
+
+        return true;
+    }
+
+    @Override
+    public void close() {
+        mRunning = false;
+        if (mInputThread != null) {
+            while (mInputThread.isAlive()) {
+                mInputThread.interrupt();
+                try {
+                    mInputThread.join();
+                } catch (InterruptedException e) {
+                    // Keep trying until we're done
+                }
+            }
+            mInputThread = null;
+        }
+        if (mConnection != null) {
+            UsbInterface iface = mDevice.getInterface(mInterfaceIndex);
+            mConnection.releaseInterface(iface);
+            mConnection.close();
+            mConnection = null;
+        }
+    }
+
+    @Override
+    public void shutdown() {
+        close();
+        mManager = null;
+    }
+
+    @Override
+    public void setFrozen(boolean frozen) {
+        mFrozen = frozen;
+    }
+
+    protected class InputThread extends Thread {
+        @Override
+        public void run() {
+            int packetSize = mInputEndpoint.getMaxPacketSize();
+            byte[] packet = new byte[packetSize];
+            while (mRunning) {
+                int r;
+                try
+                {
+                    r = mConnection.bulkTransfer(mInputEndpoint, packet, packetSize, 1000);
+                }
+                catch (Exception e)
+                {
+                    Log.v(TAG, "Exception in UsbDeviceConnection bulktransfer: " + e);
+                    break;
+                }
+                if (r < 0) {
+                    // Could be a timeout or an I/O error
+                }
+                if (r > 0) {
+                    byte[] data;
+                    if (r == packetSize) {
+                        data = packet;
+                    } else {
+                        data = Arrays.copyOfRange(packet, 0, r);
+                    }
+
+                    if (!mFrozen) {
+                        mManager.HIDDeviceInputReport(mDeviceId, data);
+                    }
+                }
+            }
+        }
+    }
+}

android-project/app/src/main/java/org/libsdl/app/SDL.java

@@ -0,0 +1,90 @@
+package org.libsdl.app;
+
+import android.content.Context;
+
+import java.lang.Class;
+import java.lang.reflect.Method;
+
+/**
+    SDL library initialization
+*/
+public class SDL {
+
+    // This function should be called first and sets up the native code
+    // so it can call into the Java classes
+    static public void setupJNI() {
+        SDLActivity.nativeSetupJNI();
+        SDLAudioManager.nativeSetupJNI();
+        SDLControllerManager.nativeSetupJNI();
+    }
+
+    // This function should be called each time the activity is started
+    static public void initialize() {
+        setContext(null);
+
+        SDLActivity.initialize();
+        SDLAudioManager.initialize();
+        SDLControllerManager.initialize();
+    }
+
+    // This function stores the current activity (SDL or not)
+    static public void setContext(Context context) {
+        SDLAudioManager.setContext(context);
+        mContext = context;
+    }
+
+    static public Context getContext() {
+        return mContext;
+    }
+
+    static void loadLibrary(String libraryName) throws UnsatisfiedLinkError, SecurityException, NullPointerException {
+        loadLibrary(libraryName, mContext);
+    }
+
+    static void loadLibrary(String libraryName, Context context) throws UnsatisfiedLinkError, SecurityException, NullPointerException {
+
+        if (libraryName == null) {
+            throw new NullPointerException("No library name provided.");
+        }
+
+        try {
+            // Let's see if we have ReLinker available in the project.  This is necessary for
+            // some projects that have huge numbers of local libraries bundled, and thus may
+            // trip a bug in Android's native library loader which ReLinker works around.  (If
+            // loadLibrary works properly, ReLinker will simply use the normal Android method
+            // internally.)
+            //
+            // To use ReLinker, just add it as a dependency.  For more information, see
+            // https://github.com/KeepSafe/ReLinker for ReLinker's repository.
+            //
+            Class<?> relinkClass = context.getClassLoader().loadClass("com.getkeepsafe.relinker.ReLinker");
+            Class<?> relinkListenerClass = context.getClassLoader().loadClass("com.getkeepsafe.relinker.ReLinker$LoadListener");
+            Class<?> contextClass = context.getClassLoader().loadClass("android.content.Context");
+            Class<?> stringClass = context.getClassLoader().loadClass("java.lang.String");
+
+            // Get a 'force' instance of the ReLinker, so we can ensure libraries are reinstalled if
+            // they've changed during updates.
+            Method forceMethod = relinkClass.getDeclaredMethod("force");
+            Object relinkInstance = forceMethod.invoke(null);
+            Class<?> relinkInstanceClass = relinkInstance.getClass();
+
+            // Actually load the library!
+            Method loadMethod = relinkInstanceClass.getDeclaredMethod("loadLibrary", contextClass, stringClass, stringClass, relinkListenerClass);
+            loadMethod.invoke(relinkInstance, context, libraryName, null, null);
+        }
+        catch (final Throwable e) {
+            // Fall back
+            try {
+                System.loadLibrary(libraryName);
+            }
+            catch (final UnsatisfiedLinkError ule) {
+                throw ule;
+            }
+            catch (final SecurityException se) {
+                throw se;
+            }
+        }
+    }
+
+    protected static Context mContext;
+}

android-project/app/src/main/java/org/libsdl/app/SDLAudioManager.java

@@ -0,0 +1,126 @@
+package org.libsdl.app;
+
+import android.content.Context;
+import android.media.AudioDeviceCallback;
+import android.media.AudioDeviceInfo;
+import android.media.AudioManager;
+import android.os.Build;
+import android.util.Log;
+
+import java.util.Arrays;
+import java.util.ArrayList;
+
+class SDLAudioManager {
+    protected static final String TAG = "SDLAudio";
+
+    protected static Context mContext;
+
+    private static AudioDeviceCallback mAudioDeviceCallback;
+
+    static void initialize() {
+        mAudioDeviceCallback = null;
+
+        if(Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */)
+        {
+            mAudioDeviceCallback = new AudioDeviceCallback() {
+                @Override
+                public void onAudioDevicesAdded(AudioDeviceInfo[] addedDevices) {
+                    for (AudioDeviceInfo deviceInfo : addedDevices) {
+                        nativeAddAudioDevice(deviceInfo.isSink(), deviceInfo.getProductName().toString(), deviceInfo.getId());
+                    }
+                }
+
+                @Override
+                public void onAudioDevicesRemoved(AudioDeviceInfo[] removedDevices) {
+                    for (AudioDeviceInfo deviceInfo : removedDevices) {
+                        nativeRemoveAudioDevice(deviceInfo.isSink(), deviceInfo.getId());
+                    }
+                }
+            };
+        }
+    }
+
+    static void setContext(Context context) {
+        mContext = context;
+    }
+
+    static void release(Context context) {
+        // no-op atm
+    }
+
+    // Audio
+
+    private static AudioDeviceInfo getInputAudioDeviceInfo(int deviceId) {
+        if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
+            AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
+            for (AudioDeviceInfo deviceInfo : audioManager.getDevices(AudioManager.GET_DEVICES_INPUTS)) {
+                if (deviceInfo.getId() == deviceId) {
+                    return deviceInfo;
+                }
+            }
+        }
+        return null;
+    }
+
+    private static AudioDeviceInfo getPlaybackAudioDeviceInfo(int deviceId) {
+        if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
+            AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
+            for (AudioDeviceInfo deviceInfo : audioManager.getDevices(AudioManager.GET_DEVICES_OUTPUTS)) {
+                if (deviceInfo.getId() == deviceId) {
+                    return deviceInfo;
+                }
+            }
+        }
+        return null;
+    }
+
+    static void registerAudioDeviceCallback() {
+        if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
+            AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
+            // get an initial list now, before hotplug callbacks fire.
+            for (AudioDeviceInfo dev : audioManager.getDevices(AudioManager.GET_DEVICES_OUTPUTS)) {
+                if (dev.getType() == AudioDeviceInfo.TYPE_TELEPHONY) {
+                    continue;  // Device cannot be opened
+                }
+                nativeAddAudioDevice(dev.isSink(), dev.getProductName().toString(), dev.getId());
+            }
+            for (AudioDeviceInfo dev : audioManager.getDevices(AudioManager.GET_DEVICES_INPUTS)) {
+                nativeAddAudioDevice(dev.isSink(), dev.getProductName().toString(), dev.getId());
+            }
+            audioManager.registerAudioDeviceCallback(mAudioDeviceCallback, null);
+        }
+    }
+
+    static void unregisterAudioDeviceCallback() {
+        if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
+            AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
+            audioManager.unregisterAudioDeviceCallback(mAudioDeviceCallback);
+        }
+    }
+
+    /** This method is called by SDL using JNI. */
+    static void audioSetThreadPriority(boolean recording, int device_id) {
+        try {
+
+            /* Set thread name */
+            if (recording) {
+                Thread.currentThread().setName("SDLAudioC" + device_id);
+            } else {
+                Thread.currentThread().setName("SDLAudioP" + device_id);
+            }
+
+            /* Set thread priority */
+            android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_AUDIO);
+
+        } catch (Exception e) {
+            Log.v(TAG, "modify thread properties failed " + e.toString());
+        }
+    }
+
+    static native int nativeSetupJNI();
+
+    static native void nativeRemoveAudioDevice(boolean recording, int deviceId);
+
+    static native void nativeAddAudioDevice(boolean recording, String name, int deviceId);
+
+}

android-project/app/src/main/java/org/libsdl/app/SDLControllerManager.java

@@ -0,0 +1,849 @@
+package org.libsdl.app;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+import android.content.Context;
+import android.os.Build;
+import android.os.VibrationEffect;
+import android.os.Vibrator;
+import android.os.VibratorManager;
+import android.util.Log;
+import android.view.InputDevice;
+import android.view.KeyEvent;
+import android.view.MotionEvent;
+import android.view.View;
+
+
+public class SDLControllerManager
+{
+
+    static native int nativeSetupJNI();
+
+    static native void nativeAddJoystick(int device_id, String name, String desc,
+                                                int vendor_id, int product_id,
+                                                int button_mask,
+                                                int naxes, int axis_mask, int nhats, boolean can_rumble);
+    static native void nativeRemoveJoystick(int device_id);
+    static native void nativeAddHaptic(int device_id, String name);
+    static native void nativeRemoveHaptic(int device_id);
+    static public native boolean onNativePadDown(int device_id, int keycode);
+    static public native boolean onNativePadUp(int device_id, int keycode);
+    static native void onNativeJoy(int device_id, int axis,
+                                          float value);
+    static native void onNativeHat(int device_id, int hat_id,
+                                          int x, int y);
+
+    protected static SDLJoystickHandler mJoystickHandler;
+    protected static SDLHapticHandler mHapticHandler;
+
+    private static final String TAG = "SDLControllerManager";
+
+    static void initialize() {
+        if (mJoystickHandler == null) {
+            if (Build.VERSION.SDK_INT >= 19 /* Android 4.4 (KITKAT) */) {
+                mJoystickHandler = new SDLJoystickHandler_API19();
+            } else {
+                mJoystickHandler = new SDLJoystickHandler_API16();
+            }
+        }
+
+        if (mHapticHandler == null) {
+            if (Build.VERSION.SDK_INT >= 31 /* Android 12.0 (S) */) {
+                mHapticHandler = new SDLHapticHandler_API31();
+            } else if (Build.VERSION.SDK_INT >= 26 /* Android 8.0 (O) */) {
+                mHapticHandler = new SDLHapticHandler_API26();
+            } else {
+                mHapticHandler = new SDLHapticHandler();
+            }
+        }
+    }
+
+    // Joystick glue code, just a series of stubs that redirect to the SDLJoystickHandler instance
+    static public boolean handleJoystickMotionEvent(MotionEvent event) {
+        return mJoystickHandler.handleMotionEvent(event);
+    }
+
+    /**
+     * This method is called by SDL using JNI.
+     */
+    static void pollInputDevices() {
+        mJoystickHandler.pollInputDevices();
+    }
+
+    /**
+     * This method is called by SDL using JNI.
+     */
+    static void pollHapticDevices() {
+        mHapticHandler.pollHapticDevices();
+    }
+
+    /**
+     * This method is called by SDL using JNI.
+     */
+    static void hapticRun(int device_id, float intensity, int length) {
+        mHapticHandler.run(device_id, intensity, length);
+    }
+
+    /**
+     * This method is called by SDL using JNI.
+     */
+    static void hapticRumble(int device_id, float low_frequency_intensity, float high_frequency_intensity, int length) {
+        mHapticHandler.rumble(device_id, low_frequency_intensity, high_frequency_intensity, length);
+    }
+
+    /**
+     * This method is called by SDL using JNI.
+     */
+    static void hapticStop(int device_id)
+    {
+        mHapticHandler.stop(device_id);
+    }
+
+    // Check if a given device is considered a possible SDL joystick
+    static public boolean isDeviceSDLJoystick(int deviceId) {
+        InputDevice device = InputDevice.getDevice(deviceId);
+        // We cannot use InputDevice.isVirtual before API 16, so let's accept
+        // only nonnegative device ids (VIRTUAL_KEYBOARD equals -1)
+        if ((device == null) || (deviceId < 0)) {
+            return false;
+        }
+        int sources = device.getSources();
+
+        /* This is called for every button press, so let's not spam the logs */
+        /*
+        if ((sources & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
+            Log.v(TAG, "Input device " + device.getName() + " has class joystick.");
+        }
+        if ((sources & InputDevice.SOURCE_DPAD) == InputDevice.SOURCE_DPAD) {
+            Log.v(TAG, "Input device " + device.getName() + " is a dpad.");
+        }
+        if ((sources & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD) {
+            Log.v(TAG, "Input device " + device.getName() + " is a gamepad.");
+        }
+        */
+
+        return ((sources & InputDevice.SOURCE_CLASS_JOYSTICK) != 0 ||
+                ((sources & InputDevice.SOURCE_DPAD) == InputDevice.SOURCE_DPAD) ||
+                ((sources & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD)
+        );
+    }
+
+}
+
+class SDLJoystickHandler {
+
+    /**
+     * Handles given MotionEvent.
+     * @param event the event to be handled.
+     * @return if given event was processed.
+     */
+    boolean handleMotionEvent(MotionEvent event) {
+        return false;
+    }
+
+    /**
+     * Handles adding and removing of input devices.
+     */
+    void pollInputDevices() {
+    }
+}
+
+/* Actual joystick functionality available for API >= 12 devices */
+class SDLJoystickHandler_API16 extends SDLJoystickHandler {
+
+    static class SDLJoystick {
+        int device_id;
+        String name;
+        String desc;
+        ArrayList<InputDevice.MotionRange> axes;
+        ArrayList<InputDevice.MotionRange> hats;
+    }
+    static class RangeComparator implements Comparator<InputDevice.MotionRange> {
+        @Override
+        public int compare(InputDevice.MotionRange arg0, InputDevice.MotionRange arg1) {
+            // Some controllers, like the Moga Pro 2, return AXIS_GAS (22) for right trigger and AXIS_BRAKE (23) for left trigger - swap them so they're sorted in the right order for SDL
+            int arg0Axis = arg0.getAxis();
+            int arg1Axis = arg1.getAxis();
+            if (arg0Axis == MotionEvent.AXIS_GAS) {
+                arg0Axis = MotionEvent.AXIS_BRAKE;
+            } else if (arg0Axis == MotionEvent.AXIS_BRAKE) {
+                arg0Axis = MotionEvent.AXIS_GAS;
+            }
+            if (arg1Axis == MotionEvent.AXIS_GAS) {
+                arg1Axis = MotionEvent.AXIS_BRAKE;
+            } else if (arg1Axis == MotionEvent.AXIS_BRAKE) {
+                arg1Axis = MotionEvent.AXIS_GAS;
+            }
+
+            // Make sure the AXIS_Z is sorted between AXIS_RY and AXIS_RZ.
+            // This is because the usual pairing are:
+            // - AXIS_X + AXIS_Y (left stick).
+            // - AXIS_RX, AXIS_RY (sometimes the right stick, sometimes triggers).
+            // - AXIS_Z, AXIS_RZ (sometimes the right stick, sometimes triggers).
+            // This sorts the axes in the above order, which tends to be correct
+            // for Xbox-ish game pads that have the right stick on RX/RY and the
+            // triggers on Z/RZ.
+            //
+            // Gamepads that don't have AXIS_Z/AXIS_RZ but use
+            // AXIS_LTRIGGER/AXIS_RTRIGGER are unaffected by this.
+            //
+            // References:
+            // - https://developer.android.com/develop/ui/views/touch-and-input/game-controllers/controller-input
+            // - https://www.kernel.org/doc/html/latest/input/gamepad.html
+            if (arg0Axis == MotionEvent.AXIS_Z) {
+                arg0Axis = MotionEvent.AXIS_RZ - 1;
+            } else if (arg0Axis > MotionEvent.AXIS_Z && arg0Axis < MotionEvent.AXIS_RZ) {
+                --arg0Axis;
+            }
+            if (arg1Axis == MotionEvent.AXIS_Z) {
+                arg1Axis = MotionEvent.AXIS_RZ - 1;
+            } else if (arg1Axis > MotionEvent.AXIS_Z && arg1Axis < MotionEvent.AXIS_RZ) {
+                --arg1Axis;
+            }
+
+            return arg0Axis - arg1Axis;
+        }
+    }
+
+    private final ArrayList<SDLJoystick> mJoysticks;
+
+    SDLJoystickHandler_API16() {
+
+        mJoysticks = new ArrayList<SDLJoystick>();
+    }
+
+    @Override
+    void pollInputDevices() {
+        int[] deviceIds = InputDevice.getDeviceIds();
+
+        for (int device_id : deviceIds) {
+            if (SDLControllerManager.isDeviceSDLJoystick(device_id)) {
+                SDLJoystick joystick = getJoystick(device_id);
+                if (joystick == null) {
+                    InputDevice joystickDevice = InputDevice.getDevice(device_id);
+                    joystick = new SDLJoystick();
+                    joystick.device_id = device_id;
+                    joystick.name = joystickDevice.getName();
+                    joystick.desc = getJoystickDescriptor(joystickDevice);
+                    joystick.axes = new ArrayList<InputDevice.MotionRange>();
+                    joystick.hats = new ArrayList<InputDevice.MotionRange>();
+
+                    List<InputDevice.MotionRange> ranges = joystickDevice.getMotionRanges();
+                    Collections.sort(ranges, new RangeComparator());
+                    for (InputDevice.MotionRange range : ranges) {
+                        if ((range.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
+                            if (range.getAxis() == MotionEvent.AXIS_HAT_X || range.getAxis() == MotionEvent.AXIS_HAT_Y) {
+                                joystick.hats.add(range);
+                            } else {
+                                joystick.axes.add(range);
+                            }
+                        }
+                    }
+
+                    boolean can_rumble = false;
+                    if (Build.VERSION.SDK_INT >= 31 /* Android 12.0 (S) */) {
+                        VibratorManager manager = joystickDevice.getVibratorManager();
+                        int[] vibrators = manager.getVibratorIds();
+                        if (vibrators.length > 0) {
+                            can_rumble = true;
+                        }
+                    }
+
+                    mJoysticks.add(joystick);
+                    SDLControllerManager.nativeAddJoystick(joystick.device_id, joystick.name, joystick.desc,
+                            getVendorId(joystickDevice), getProductId(joystickDevice),
+                            getButtonMask(joystickDevice), joystick.axes.size(), getAxisMask(joystick.axes), joystick.hats.size()/2, can_rumble);
+                }
+            }
+        }
+
+        /* Check removed devices */
+        ArrayList<Integer> removedDevices = null;
+        for (SDLJoystick joystick : mJoysticks) {
+            int device_id = joystick.device_id;
+            int i;
+            for (i = 0; i < deviceIds.length; i++) {
+                if (device_id == deviceIds[i]) break;
+            }
+            if (i == deviceIds.length) {
+                if (removedDevices == null) {
+                    removedDevices = new ArrayList<Integer>();
+                }
+                removedDevices.add(device_id);
+            }
+        }
+
+        if (removedDevices != null) {
+            for (int device_id : removedDevices) {
+                SDLControllerManager.nativeRemoveJoystick(device_id);
+                for (int i = 0; i < mJoysticks.size(); i++) {
+                    if (mJoysticks.get(i).device_id == device_id) {
+                        mJoysticks.remove(i);
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    protected SDLJoystick getJoystick(int device_id) {
+        for (SDLJoystick joystick : mJoysticks) {
+            if (joystick.device_id == device_id) {
+                return joystick;
+            }
+        }
+        return null;
+    }
+
+    @Override
+    boolean handleMotionEvent(MotionEvent event) {
+        int actionPointerIndex = event.getActionIndex();
+        int action = event.getActionMasked();
+        if (action == MotionEvent.ACTION_MOVE) {
+            SDLJoystick joystick = getJoystick(event.getDeviceId());
+            if (joystick != null) {
+                for (int i = 0; i < joystick.axes.size(); i++) {
+                    InputDevice.MotionRange range = joystick.axes.get(i);
+                    /* Normalize the value to -1...1 */
+                    float value = (event.getAxisValue(range.getAxis(), actionPointerIndex) - range.getMin()) / range.getRange() * 2.0f - 1.0f;
+                    SDLControllerManager.onNativeJoy(joystick.device_id, i, value);
+                }
+                for (int i = 0; i < joystick.hats.size() / 2; i++) {
+                    int hatX = Math.round(event.getAxisValue(joystick.hats.get(2 * i).getAxis(), actionPointerIndex));
+                    int hatY = Math.round(event.getAxisValue(joystick.hats.get(2 * i + 1).getAxis(), actionPointerIndex));
+                    SDLControllerManager.onNativeHat(joystick.device_id, i, hatX, hatY);
+                }
+            }
+        }
+        return true;
+    }
+
+    String getJoystickDescriptor(InputDevice joystickDevice) {
+        String desc = joystickDevice.getDescriptor();
+
+        if (desc != null && !desc.isEmpty()) {
+            return desc;
+        }
+
+        return joystickDevice.getName();
+    }
+    int getProductId(InputDevice joystickDevice) {
+        return 0;
+    }
+    int getVendorId(InputDevice joystickDevice) {
+        return 0;
+    }
+    int getAxisMask(List<InputDevice.MotionRange> ranges) {
+        return -1;
+    }
+    int getButtonMask(InputDevice joystickDevice) {
+        return -1;
+    }
+}
+
+class SDLJoystickHandler_API19 extends SDLJoystickHandler_API16 {
+
+    @Override
+    int getProductId(InputDevice joystickDevice) {
+        return joystickDevice.getProductId();
+    }
+
+    @Override
+    int getVendorId(InputDevice joystickDevice) {
+        return joystickDevice.getVendorId();
+    }
+
+    @Override
+    int getAxisMask(List<InputDevice.MotionRange> ranges) {
+        // For compatibility, keep computing the axis mask like before,
+        // only really distinguishing 2, 4 and 6 axes.
+        int axis_mask = 0;
+        if (ranges.size() >= 2) {
+            // ((1 << SDL_GAMEPAD_AXIS_LEFTX) | (1 << SDL_GAMEPAD_AXIS_LEFTY))
+            axis_mask |= 0x0003;
+        }
+        if (ranges.size() >= 4) {
+            // ((1 << SDL_GAMEPAD_AXIS_RIGHTX) | (1 << SDL_GAMEPAD_AXIS_RIGHTY))
+            axis_mask |= 0x000c;
+        }
+        if (ranges.size() >= 6) {
+            // ((1 << SDL_GAMEPAD_AXIS_LEFT_TRIGGER) | (1 << SDL_GAMEPAD_AXIS_RIGHT_TRIGGER))
+            axis_mask |= 0x0030;
+        }
+        // Also add an indicator bit for whether the sorting order has changed.
+        // This serves to disable outdated gamecontrollerdb.txt mappings.
+        boolean have_z = false;
+        boolean have_past_z_before_rz = false;
+        for (InputDevice.MotionRange range : ranges) {
+            int axis = range.getAxis();
+            if (axis == MotionEvent.AXIS_Z) {
+                have_z = true;
+            } else if (axis > MotionEvent.AXIS_Z && axis < MotionEvent.AXIS_RZ) {
+                have_past_z_before_rz = true;
+            }
+        }
+        if (have_z && have_past_z_before_rz) {
+            // If both these exist, the compare() function changed sorting order.
+            // Set a bit to indicate this fact.
+            axis_mask |= 0x8000;
+        }
+        return axis_mask;
+    }
+
+    @Override
+    int getButtonMask(InputDevice joystickDevice) {
+        int button_mask = 0;
+        int[] keys = new int[] {
+            KeyEvent.KEYCODE_BUTTON_A,
+            KeyEvent.KEYCODE_BUTTON_B,
+            KeyEvent.KEYCODE_BUTTON_X,
+            KeyEvent.KEYCODE_BUTTON_Y,
+            KeyEvent.KEYCODE_BACK,
+            KeyEvent.KEYCODE_MENU,
+            KeyEvent.KEYCODE_BUTTON_MODE,
+            KeyEvent.KEYCODE_BUTTON_START,
+            KeyEvent.KEYCODE_BUTTON_THUMBL,
+            KeyEvent.KEYCODE_BUTTON_THUMBR,
+            KeyEvent.KEYCODE_BUTTON_L1,
+            KeyEvent.KEYCODE_BUTTON_R1,
+            KeyEvent.KEYCODE_DPAD_UP,
+            KeyEvent.KEYCODE_DPAD_DOWN,
+            KeyEvent.KEYCODE_DPAD_LEFT,
+            KeyEvent.KEYCODE_DPAD_RIGHT,
+            KeyEvent.KEYCODE_BUTTON_SELECT,
+            KeyEvent.KEYCODE_DPAD_CENTER,
+
+            // These don't map into any SDL controller buttons directly
+            KeyEvent.KEYCODE_BUTTON_L2,
+            KeyEvent.KEYCODE_BUTTON_R2,
+            KeyEvent.KEYCODE_BUTTON_C,
+            KeyEvent.KEYCODE_BUTTON_Z,
+            KeyEvent.KEYCODE_BUTTON_1,
+            KeyEvent.KEYCODE_BUTTON_2,
+            KeyEvent.KEYCODE_BUTTON_3,
+            KeyEvent.KEYCODE_BUTTON_4,
+            KeyEvent.KEYCODE_BUTTON_5,
+            KeyEvent.KEYCODE_BUTTON_6,
+            KeyEvent.KEYCODE_BUTTON_7,
+            KeyEvent.KEYCODE_BUTTON_8,
+            KeyEvent.KEYCODE_BUTTON_9,
+            KeyEvent.KEYCODE_BUTTON_10,
+            KeyEvent.KEYCODE_BUTTON_11,
+            KeyEvent.KEYCODE_BUTTON_12,
+            KeyEvent.KEYCODE_BUTTON_13,
+            KeyEvent.KEYCODE_BUTTON_14,
+            KeyEvent.KEYCODE_BUTTON_15,
+            KeyEvent.KEYCODE_BUTTON_16,
+        };
+        int[] masks = new int[] {
+            (1 << 0),   // A -> A
+            (1 << 1),   // B -> B
+            (1 << 2),   // X -> X
+            (1 << 3),   // Y -> Y
+            (1 << 4),   // BACK -> BACK
+            (1 << 6),   // MENU -> START
+            (1 << 5),   // MODE -> GUIDE
+            (1 << 6),   // START -> START
+            (1 << 7),   // THUMBL -> LEFTSTICK
+            (1 << 8),   // THUMBR -> RIGHTSTICK
+            (1 << 9),   // L1 -> LEFTSHOULDER
+            (1 << 10),  // R1 -> RIGHTSHOULDER
+            (1 << 11),  // DPAD_UP -> DPAD_UP
+            (1 << 12),  // DPAD_DOWN -> DPAD_DOWN
+            (1 << 13),  // DPAD_LEFT -> DPAD_LEFT
+            (1 << 14),  // DPAD_RIGHT -> DPAD_RIGHT
+            (1 << 4),   // SELECT -> BACK
+            (1 << 0),   // DPAD_CENTER -> A
+            (1 << 15),  // L2 -> ??
+            (1 << 16),  // R2 -> ??
+            (1 << 17),  // C -> ??
+            (1 << 18),  // Z -> ??
+            (1 << 20),  // 1 -> ??
+            (1 << 21),  // 2 -> ??
+            (1 << 22),  // 3 -> ??
+            (1 << 23),  // 4 -> ??
+            (1 << 24),  // 5 -> ??
+            (1 << 25),  // 6 -> ??
+            (1 << 26),  // 7 -> ??
+            (1 << 27),  // 8 -> ??
+            (1 << 28),  // 9 -> ??
+            (1 << 29),  // 10 -> ??
+            (1 << 30),  // 11 -> ??
+            (1 << 31),  // 12 -> ??
+            // We're out of room...
+            0xFFFFFFFF,  // 13 -> ??
+            0xFFFFFFFF,  // 14 -> ??
+            0xFFFFFFFF,  // 15 -> ??
+            0xFFFFFFFF,  // 16 -> ??
+        };
+        boolean[] has_keys = joystickDevice.hasKeys(keys);
+        for (int i = 0; i < keys.length; ++i) {
+            if (has_keys[i]) {
+                button_mask |= masks[i];
+            }
+        }
+        return button_mask;
+    }
+}
+
+class SDLHapticHandler_API31 extends SDLHapticHandler {
+    @Override
+    void run(int device_id, float intensity, int length) {
+        SDLHaptic haptic = getHaptic(device_id);
+        if (haptic != null) {
+            vibrate(haptic.vib, intensity, length);
+        }
+    }
+
+    @Override
+    void rumble(int device_id, float low_frequency_intensity, float high_frequency_intensity, int length) {
+        InputDevice device = InputDevice.getDevice(device_id);
+        if (device == null) {
+            return;
+        }
+
+        VibratorManager manager = device.getVibratorManager();
+        int[] vibrators = manager.getVibratorIds();
+        if (vibrators.length >= 2) {
+            vibrate(manager.getVibrator(vibrators[0]), low_frequency_intensity, length);
+            vibrate(manager.getVibrator(vibrators[1]), high_frequency_intensity, length);
+        } else if (vibrators.length == 1) {
+            float intensity = (low_frequency_intensity * 0.6f) + (high_frequency_intensity * 0.4f);
+            vibrate(manager.getVibrator(vibrators[0]), intensity, length);
+        }
+    }
+
+    private void vibrate(Vibrator vibrator, float intensity, int length) {
+        if (intensity == 0.0f) {
+            vibrator.cancel();
+            return;
+        }
+
+        int value = Math.round(intensity * 255);
+        if (value > 255) {
+            value = 255;
+        }
+        if (value < 1) {
+            vibrator.cancel();
+            return;
+        }
+        try {
+            vibrator.vibrate(VibrationEffect.createOneShot(length, value));
+        }
+        catch (Exception e) {
+            // Fall back to the generic method, which uses DEFAULT_AMPLITUDE, but works even if
+            // something went horribly wrong with the Android 8.0 APIs.
+            vibrator.vibrate(length);
+        }
+    }
+}
+
+class SDLHapticHandler_API26 extends SDLHapticHandler {
+    @Override
+    void run(int device_id, float intensity, int length) {
+        SDLHaptic haptic = getHaptic(device_id);
+        if (haptic != null) {
+            if (intensity == 0.0f) {
+                stop(device_id);
+                return;
+            }
+
+            int vibeValue = Math.round(intensity * 255);
+
+            if (vibeValue > 255) {
+                vibeValue = 255;
+            }
+            if (vibeValue < 1) {
+                stop(device_id);
+                return;
+            }
+            try {
+                haptic.vib.vibrate(VibrationEffect.createOneShot(length, vibeValue));
+            }
+            catch (Exception e) {
+                // Fall back to the generic method, which uses DEFAULT_AMPLITUDE, but works even if
+                // something went horribly wrong with the Android 8.0 APIs.
+                haptic.vib.vibrate(length);
+            }
+        }
+    }
+}
+
+class SDLHapticHandler {
+
+    static class SDLHaptic {
+        int device_id;
+        String name;
+        Vibrator vib;
+    }
+
+    private final ArrayList<SDLHaptic> mHaptics;
+
+    SDLHapticHandler() {
+        mHaptics = new ArrayList<SDLHaptic>();
+    }
+
+    void run(int device_id, float intensity, int length) {
+        SDLHaptic haptic = getHaptic(device_id);
+        if (haptic != null) {
+            haptic.vib.vibrate(length);
+        }
+    }
+
+    void rumble(int device_id, float low_frequency_intensity, float high_frequency_intensity, int length) {
+        // Not supported in older APIs
+    }
+
+    void stop(int device_id) {
+        SDLHaptic haptic = getHaptic(device_id);
+        if (haptic != null) {
+            haptic.vib.cancel();
+        }
+    }
+
+    void pollHapticDevices() {
+
+        final int deviceId_VIBRATOR_SERVICE = 999999;
+        boolean hasVibratorService = false;
+
+        /* Check VIBRATOR_SERVICE */
+        Vibrator vib = (Vibrator) SDL.getContext().getSystemService(Context.VIBRATOR_SERVICE);
+        if (vib != null) {
+            hasVibratorService = vib.hasVibrator();
+
+            if (hasVibratorService) {
+                SDLHaptic haptic = getHaptic(deviceId_VIBRATOR_SERVICE);
+                if (haptic == null) {
+                    haptic = new SDLHaptic();
+                    haptic.device_id = deviceId_VIBRATOR_SERVICE;
+                    haptic.name = "VIBRATOR_SERVICE";
+                    haptic.vib = vib;
+                    mHaptics.add(haptic);
+                    SDLControllerManager.nativeAddHaptic(haptic.device_id, haptic.name);
+                }
+            }
+        }
+
+        /* Check removed devices */
+        ArrayList<Integer> removedDevices = null;
+        for (SDLHaptic haptic : mHaptics) {
+            int device_id = haptic.device_id;
+            if (device_id != deviceId_VIBRATOR_SERVICE || !hasVibratorService) {
+                if (removedDevices == null) {
+                    removedDevices = new ArrayList<Integer>();
+                }
+                removedDevices.add(device_id);
+            }  // else: don't remove the vibrator if it is still present
+        }
+
+        if (removedDevices != null) {
+            for (int device_id : removedDevices) {
+                SDLControllerManager.nativeRemoveHaptic(device_id);
+                for (int i = 0; i < mHaptics.size(); i++) {
+                    if (mHaptics.get(i).device_id == device_id) {
+                        mHaptics.remove(i);
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    protected SDLHaptic getHaptic(int device_id) {
+        for (SDLHaptic haptic : mHaptics) {
+            if (haptic.device_id == device_id) {
+                return haptic;
+            }
+        }
+        return null;
+    }
+}
+
+class SDLGenericMotionListener_API14 implements View.OnGenericMotionListener {
+    // Generic Motion (mouse hover, joystick...) events go here
+    @Override
+    public boolean onGenericMotion(View v, MotionEvent event) {
+        if (event.getSource() == InputDevice.SOURCE_JOYSTICK)
+            return SDLControllerManager.handleJoystickMotionEvent(event);
+
+        float x, y;
+        int action = event.getActionMasked();
+        int pointerCount = event.getPointerCount();
+        boolean consumed = false;
+
+        for (int i = 0; i < pointerCount; i++) {
+            int toolType = event.getToolType(i);
+
+            if (toolType == MotionEvent.TOOL_TYPE_MOUSE) {
+                switch (action) {
+                    case MotionEvent.ACTION_SCROLL:
+                        x = event.getAxisValue(MotionEvent.AXIS_HSCROLL, i);
+                        y = event.getAxisValue(MotionEvent.AXIS_VSCROLL, i);
+                        SDLActivity.onNativeMouse(0, action, x, y, false);
+                        consumed = true;
+                        break;
+
+                    case MotionEvent.ACTION_HOVER_MOVE:
+                        x = getEventX(event, i);
+                        y = getEventY(event, i);
+
+                        SDLActivity.onNativeMouse(0, action, x, y, checkRelativeEvent(event));
+                        consumed = true;
+                        break;
+
+                    default:
+                        break;
+                }
+            } else if (toolType == MotionEvent.TOOL_TYPE_STYLUS || toolType == MotionEvent.TOOL_TYPE_ERASER) {
+                switch (action) {
+                    case MotionEvent.ACTION_HOVER_ENTER:
+                    case MotionEvent.ACTION_HOVER_MOVE:
+                    case MotionEvent.ACTION_HOVER_EXIT:
+                        x = event.getX(i);
+                        y = event.getY(i);
+                        float p = event.getPressure(i);
+                        if (p > 1.0f) {
+                            // may be larger than 1.0f on some devices
+                            // see the documentation of getPressure(i)
+                            p = 1.0f;
+                        }
+
+                        // BUTTON_STYLUS_PRIMARY is 2^5, so shift by 4, and apply SDL_PEN_INPUT_DOWN/SDL_PEN_INPUT_ERASER_TIP
+                        int buttons = (event.getButtonState() >> 4) | (1 << (toolType == MotionEvent.TOOL_TYPE_STYLUS ? 0 : 30));
+
+                        SDLActivity.onNativePen(event.getPointerId(i), buttons, action, x, y, p);
+                        consumed = true;
+                        break;
+                }
+            }
+        }
+
+        return consumed;
+    }
+
+    boolean supportsRelativeMouse() {
+        return false;
+    }
+
+    boolean inRelativeMode() {
+        return false;
+    }
+
+    boolean setRelativeMouseEnabled(boolean enabled) {
+        return false;
+    }
+
+    void reclaimRelativeMouseModeIfNeeded() {
+
+    }
+
+    boolean checkRelativeEvent(MotionEvent event) {
+        return inRelativeMode();
+    }
+
+    float getEventX(MotionEvent event, int pointerIndex) {
+        return event.getX(pointerIndex);
+    }
+
+    float getEventY(MotionEvent event, int pointerIndex) {
+        return event.getY(pointerIndex);
+    }
+
+}
+
+class SDLGenericMotionListener_API24 extends SDLGenericMotionListener_API14 {
+    // Generic Motion (mouse hover, joystick...) events go here
+
+    private boolean mRelativeModeEnabled;
+
+    @Override
+    boolean supportsRelativeMouse() {
+        return true;
+    }
+
+    @Override
+    boolean inRelativeMode() {
+        return mRelativeModeEnabled;
+    }
+
+    @Override
+    boolean setRelativeMouseEnabled(boolean enabled) {
+        mRelativeModeEnabled = enabled;
+        return true;
+    }
+
+    @Override
+    float getEventX(MotionEvent event, int pointerIndex) {
+        if (mRelativeModeEnabled && event.getToolType(pointerIndex) == MotionEvent.TOOL_TYPE_MOUSE) {
+            return event.getAxisValue(MotionEvent.AXIS_RELATIVE_X, pointerIndex);
+        } else {
+            return event.getX(pointerIndex);
+        }
+    }
+
+    @Override
+    float getEventY(MotionEvent event, int pointerIndex) {
+        if (mRelativeModeEnabled && event.getToolType(pointerIndex) == MotionEvent.TOOL_TYPE_MOUSE) {
+            return event.getAxisValue(MotionEvent.AXIS_RELATIVE_Y, pointerIndex);
+        } else {
+            return event.getY(pointerIndex);
+        }
+    }
+}
+
+class SDLGenericMotionListener_API26 extends SDLGenericMotionListener_API24 {
+    // Generic Motion (mouse hover, joystick...) events go here
+    private boolean mRelativeModeEnabled;
+
+    @Override
+    boolean supportsRelativeMouse() {
+        return (!SDLActivity.isDeXMode() || Build.VERSION.SDK_INT >= 27 /* Android 8.1 (O_MR1) */);
+    }
+
+    @Override
+    boolean inRelativeMode() {
+        return mRelativeModeEnabled;
+    }
+
+    @Override
+    boolean setRelativeMouseEnabled(boolean enabled) {
+        if (!SDLActivity.isDeXMode() || Build.VERSION.SDK_INT >= 27 /* Android 8.1 (O_MR1) */) {
+            if (enabled) {
+                SDLActivity.getContentView().requestPointerCapture();
+            } else {
+                SDLActivity.getContentView().releasePointerCapture();
+            }
+            mRelativeModeEnabled = enabled;
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    void reclaimRelativeMouseModeIfNeeded() {
+        if (mRelativeModeEnabled && !SDLActivity.isDeXMode()) {
+            SDLActivity.getContentView().requestPointerCapture();
+        }
+    }
+
+    @Override
+    boolean checkRelativeEvent(MotionEvent event) {
+        return event.getSource() == InputDevice.SOURCE_MOUSE_RELATIVE;
+    }
+
+    @Override
+    float getEventX(MotionEvent event, int pointerIndex) {
+        // Relative mouse in capture mode will only have relative for X/Y
+        return event.getX(pointerIndex);
+    }
+
+    @Override
+    float getEventY(MotionEvent event, int pointerIndex) {
+        // Relative mouse in capture mode will only have relative for X/Y
+        return event.getY(pointerIndex);
+    }
+}

android-project/app/src/main/java/org/libsdl/app/SDLDummyEdit.java

@@ -0,0 +1,66 @@
+package org.libsdl.app;
+
+import android.content.*;
+import android.text.InputType;
+import android.view.*;
+import android.view.inputmethod.EditorInfo;
+import android.view.inputmethod.InputConnection;
+
+/* This is a fake invisible editor view that receives the input and defines the
+ * pan&scan region
+ */
+public class SDLDummyEdit extends View implements View.OnKeyListener
+{
+    InputConnection ic;
+    int input_type;
+
+    SDLDummyEdit(Context context) {
+        super(context);
+        setFocusableInTouchMode(true);
+        setFocusable(true);
+        setOnKeyListener(this);
+    }
+
+    void setInputType(int input_type) {
+        this.input_type = input_type;
+    }
+
+    @Override
+    public boolean onCheckIsTextEditor() {
+        return true;
+    }
+
+    @Override
+    public boolean onKey(View v, int keyCode, KeyEvent event) {
+        return SDLActivity.handleKeyEvent(v, keyCode, event, ic);
+    }
+
+    //
+    @Override
+    public boolean onKeyPreIme (int keyCode, KeyEvent event) {
+        // As seen on StackOverflow: http://stackoverflow.com/questions/7634346/keyboard-hide-event
+        // FIXME: Discussion at http://bugzilla.libsdl.org/show_bug.cgi?id=1639
+        // FIXME: This is not a 100% effective solution to the problem of detecting if the keyboard is showing or not
+        // FIXME: A more effective solution would be to assume our Layout to be RelativeLayout or LinearLayout
+        // FIXME: And determine the keyboard presence doing this: http://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android
+        // FIXME: An even more effective way would be if Android provided this out of the box, but where would the fun be in that :)
+        if (event.getAction()==KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
+            if (SDLActivity.mTextEdit != null && SDLActivity.mTextEdit.getVisibility() == View.VISIBLE) {
+                SDLActivity.onNativeKeyboardFocusLost();
+            }
+        }
+        return super.onKeyPreIme(keyCode, event);
+    }
+
+    @Override
+    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
+        ic = new SDLInputConnection(this, true);
+
+        outAttrs.inputType = input_type;
+        outAttrs.imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI |
+                              EditorInfo.IME_FLAG_NO_FULLSCREEN /* API 11 */;
+
+        return ic;
+    }
+}
+

android-project/app/src/main/java/org/libsdl/app/SDLInputConnection.java

@@ -0,0 +1,138 @@
+package org.libsdl.app;
+
+import android.content.*;
+import android.os.Build;
+import android.text.Editable;
+import android.view.*;
+import android.view.inputmethod.BaseInputConnection;
+import android.widget.EditText;
+
+class SDLInputConnection extends BaseInputConnection
+{
+    protected EditText mEditText;
+    protected String mCommittedText = "";
+
+    SDLInputConnection(View targetView, boolean fullEditor) {
+        super(targetView, fullEditor);
+        mEditText = new EditText(SDL.getContext());
+    }
+
+    @Override
+    public Editable getEditable() {
+        return mEditText.getEditableText();
+    }
+
+    @Override
+    public boolean sendKeyEvent(KeyEvent event) {
+        /*
+         * This used to handle the keycodes from soft keyboard (and IME-translated input from hardkeyboard)
+         * However, as of Ice Cream Sandwich and later, almost all soft keyboard doesn't generate key presses
+         * and so we need to generate them ourselves in commitText.  To avoid duplicates on the handful of keys
+         * that still do, we empty this out.
+         */
+
+        /*
+         * Return DOES still generate a key event, however.  So rather than using it as the 'click a button' key
+         * as we do with physical keyboards, let's just use it to hide the keyboard.
+         */
+
+        if (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
+            if (SDLActivity.onNativeSoftReturnKey()) {
+                return true;
+            }
+        }
+
+        return super.sendKeyEvent(event);
+    }
+
+    @Override
+    public boolean commitText(CharSequence text, int newCursorPosition) {
+        if (!super.commitText(text, newCursorPosition)) {
+            return false;
+        }
+        updateText();
+        return true;
+    }
+
+    @Override
+    public boolean setComposingText(CharSequence text, int newCursorPosition) {
+        if (!super.setComposingText(text, newCursorPosition)) {
+            return false;
+        }
+        updateText();
+        return true;
+    }
+
+    @Override
+    public boolean deleteSurroundingText(int beforeLength, int afterLength) {
+        if (Build.VERSION.SDK_INT <= 29 /* Android 10.0 (Q) */) {
+            // Workaround to capture backspace key. Ref: http://stackoverflow.com/questions>/14560344/android-backspace-in-webview-baseinputconnection
+            // and https://bugzilla.libsdl.org/show_bug.cgi?id=2265
+            if (beforeLength > 0 && afterLength == 0) {
+                // backspace(s)
+                while (beforeLength-- > 0) {
+                    nativeGenerateScancodeForUnichar('\b');
+                }
+                return true;
+           }
+        }
+
+        if (!super.deleteSurroundingText(beforeLength, afterLength)) {
+            return false;
+        }
+        updateText();
+        return true;
+    }
+
+    protected void updateText() {
+        final Editable content = getEditable();
+        if (content == null) {
+            return;
+        }
+
+        String text = content.toString();
+        int compareLength = Math.min(text.length(), mCommittedText.length());
+        int matchLength, offset;
+
+        /* Backspace over characters that are no longer in the string */
+        for (matchLength = 0; matchLength < compareLength; ) {
+            int codePoint = mCommittedText.codePointAt(matchLength);
+            if (codePoint != text.codePointAt(matchLength)) {
+                break;
+            }
+            matchLength += Character.charCount(codePoint);
+        }
+        /* FIXME: This doesn't handle graphemes, like '🌬️' */
+        for (offset = matchLength; offset < mCommittedText.length(); ) {
+            int codePoint = mCommittedText.codePointAt(offset);
+            nativeGenerateScancodeForUnichar('\b');
+            offset += Character.charCount(codePoint);
+        }
+
+        if (matchLength < text.length()) {
+            String pendingText = text.subSequence(matchLength, text.length()).toString();
+            if (!SDLActivity.dispatchingKeyEvent()) {
+                for (offset = 0; offset < pendingText.length(); ) {
+                    int codePoint = pendingText.codePointAt(offset);
+                    if (codePoint == '\n') {
+                        if (SDLActivity.onNativeSoftReturnKey()) {
+                            return;
+                        }
+                    }
+                    /* Higher code points don't generate simulated scancodes */
+                    if (codePoint > 0 && codePoint < 128) {
+                        nativeGenerateScancodeForUnichar((char)codePoint);
+                    }
+                    offset += Character.charCount(codePoint);
+                }
+            }
+            SDLInputConnection.nativeCommitText(pendingText, 0);
+        }
+        mCommittedText = text;
+    }
+
+    public static native void nativeCommitText(String text, int newCursorPosition);
+
+    public static native void nativeGenerateScancodeForUnichar(char c);
+}
+

android-project/app/src/main/java/org/libsdl/app/SDLSurface.java

@@ -0,0 +1,409 @@
+package org.libsdl.app;
+
+
+import android.content.Context;
+import android.content.pm.ActivityInfo;
+import android.graphics.Insets;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.os.Build;
+import android.util.DisplayMetrics;
+import android.util.Log;
+import android.view.Display;
+import android.view.InputDevice;
+import android.view.KeyEvent;
+import android.view.MotionEvent;
+import android.view.Surface;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+import android.view.View;
+import android.view.WindowInsets;
+import android.view.WindowManager;
+
+
+/**
+    SDLSurface. This is what we draw on, so we need to know when it's created
+    in order to do anything useful.
+
+    Because of this, that's where we set up the SDL thread
+*/
+public class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
+    View.OnApplyWindowInsetsListener, View.OnKeyListener, View.OnTouchListener, SensorEventListener  {
+
+    // Sensors
+    protected SensorManager mSensorManager;
+    protected Display mDisplay;
+
+    // Keep track of the surface size to normalize touch events
+    protected float mWidth, mHeight;
+
+    // Is SurfaceView ready for rendering
+    protected boolean mIsSurfaceReady;
+
+    // Startup
+    protected SDLSurface(Context context) {
+        super(context);
+        getHolder().addCallback(this);
+
+        setFocusable(true);
+        setFocusableInTouchMode(true);
+        requestFocus();
+        setOnApplyWindowInsetsListener(this);
+        setOnKeyListener(this);
+        setOnTouchListener(this);
+
+        mDisplay = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
+        mSensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
+
+        setOnGenericMotionListener(SDLActivity.getMotionListener());
+
+        // Some arbitrary defaults to avoid a potential division by zero
+        mWidth = 1.0f;
+        mHeight = 1.0f;
+
+        mIsSurfaceReady = false;
+    }
+
+    protected void handlePause() {
+        enableSensor(Sensor.TYPE_ACCELEROMETER, false);
+    }
+
+    protected void handleResume() {
+        setFocusable(true);
+        setFocusableInTouchMode(true);
+        requestFocus();
+        setOnApplyWindowInsetsListener(this);
+        setOnKeyListener(this);
+        setOnTouchListener(this);
+        enableSensor(Sensor.TYPE_ACCELEROMETER, true);
+    }
+
+    protected Surface getNativeSurface() {
+        return getHolder().getSurface();
+    }
+
+    // Called when we have a valid drawing surface
+    @Override
+    public void surfaceCreated(SurfaceHolder holder) {
+        Log.v("SDL", "surfaceCreated()");
+        SDLActivity.onNativeSurfaceCreated();
+    }
+
+    // Called when we lose the surface
+    @Override
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        Log.v("SDL", "surfaceDestroyed()");
+
+        // Transition to pause, if needed
+        SDLActivity.mNextNativeState = SDLActivity.NativeState.PAUSED;
+        SDLActivity.handleNativeState();
+
+        mIsSurfaceReady = false;
+        SDLActivity.onNativeSurfaceDestroyed();
+    }
+
+    // Called when the surface is resized
+    @Override
+    public void surfaceChanged(SurfaceHolder holder,
+                               int format, int width, int height) {
+        Log.v("SDL", "surfaceChanged()");
+
+        if (SDLActivity.mSingleton == null) {
+            return;
+        }
+
+        mWidth = width;
+        mHeight = height;
+        int nDeviceWidth = width;
+        int nDeviceHeight = height;
+        float density = 1.0f;
+        try
+        {
+            if (Build.VERSION.SDK_INT >= 17 /* Android 4.2 (JELLY_BEAN_MR1) */) {
+                DisplayMetrics realMetrics = new DisplayMetrics();
+                mDisplay.getRealMetrics( realMetrics );
+                nDeviceWidth = realMetrics.widthPixels;
+                nDeviceHeight = realMetrics.heightPixels;
+                // Use densityDpi instead of density to more closely match what the UI scale is
+                density = (float)realMetrics.densityDpi / 160.0f;
+            }
+        } catch(Exception ignored) {
+        }
+
+        synchronized(SDLActivity.getContext()) {
+            // In case we're waiting on a size change after going fullscreen, send a notification.
+            SDLActivity.getContext().notifyAll();
+        }
+
+        Log.v("SDL", "Window size: " + width + "x" + height);
+        Log.v("SDL", "Device size: " + nDeviceWidth + "x" + nDeviceHeight);
+        SDLActivity.nativeSetScreenResolution(width, height, nDeviceWidth, nDeviceHeight, density, mDisplay.getRefreshRate());
+        SDLActivity.onNativeResize();
+
+        // Prevent a screen distortion glitch,
+        // for instance when the device is in Landscape and a Portrait App is resumed.
+        boolean skip = false;
+        int requestedOrientation = SDLActivity.mSingleton.getRequestedOrientation();
+
+        if (requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_PORTRAIT || requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT) {
+            if (mWidth > mHeight) {
+               skip = true;
+            }
+        } else if (requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE || requestedOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE) {
+            if (mWidth < mHeight) {
+               skip = true;
+            }
+        }
+
+        // Special Patch for Square Resolution: Black Berry Passport
+        if (skip) {
+           double min = Math.min(mWidth, mHeight);
+           double max = Math.max(mWidth, mHeight);
+
+           if (max / min < 1.20) {
+              Log.v("SDL", "Don't skip on such aspect-ratio. Could be a square resolution.");
+              skip = false;
+           }
+        }
+
+        // Don't skip if we might be multi-window or have popup dialogs
+        if (skip) {
+            if (Build.VERSION.SDK_INT >= 24 /* Android 7.0 (N) */) {
+                skip = false;
+            }
+        }
+
+        if (skip) {
+           Log.v("SDL", "Skip .. Surface is not ready.");
+           mIsSurfaceReady = false;
+           return;
+        }
+
+        /* If the surface has been previously destroyed by onNativeSurfaceDestroyed, recreate it here */
+        SDLActivity.onNativeSurfaceChanged();
+
+        /* Surface is ready */
+        mIsSurfaceReady = true;
+
+        SDLActivity.mNextNativeState = SDLActivity.NativeState.RESUMED;
+        SDLActivity.handleNativeState();
+    }
+
+    // Window inset
+    @Override
+    public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
+        if (Build.VERSION.SDK_INT >= 30 /* Android 11 (R) */) {
+            Insets combined = insets.getInsets(WindowInsets.Type.systemBars() |
+                                               WindowInsets.Type.systemGestures() |
+                                               WindowInsets.Type.mandatorySystemGestures() |
+                                               WindowInsets.Type.tappableElement() |
+                                               WindowInsets.Type.displayCutout());
+
+            SDLActivity.onNativeInsetsChanged(combined.left, combined.right, combined.top, combined.bottom);
+        }
+
+        // Pass these to any child views in case they need them
+        return insets;
+    }
+
+    // Key events
+    @Override
+    public boolean onKey(View v, int keyCode, KeyEvent event) {
+        return SDLActivity.handleKeyEvent(v, keyCode, event, null);
+    }
+
+    private float getNormalizedX(float x)
+    {
+        if (mWidth <= 1) {
+            return 0.5f;
+        } else {
+            return (x / (mWidth - 1));
+        }
+    }
+
+    private float getNormalizedY(float y)
+    {
+        if (mHeight <= 1) {
+            return 0.5f;
+        } else {
+            return (y / (mHeight - 1));
+        }
+    }
+
+    // Touch events
+    @Override
+    public boolean onTouch(View v, MotionEvent event) {
+        /* Ref: http://developer.android.com/training/gestures/multi.html */
+        int touchDevId = event.getDeviceId();
+        final int pointerCount = event.getPointerCount();
+        int action = event.getActionMasked();
+        int pointerId;
+        int i = 0;
+        float x,y,p;
+
+        if (action == MotionEvent.ACTION_POINTER_UP || action == MotionEvent.ACTION_POINTER_DOWN)
+            i = event.getActionIndex();
+
+        do {
+            int toolType = event.getToolType(i);
+
+            if (toolType == MotionEvent.TOOL_TYPE_MOUSE) {
+                int buttonState = event.getButtonState();
+                boolean relative = false;
+
+                // We need to check if we're in relative mouse mode and get the axis offset rather than the x/y values
+                // if we are. We'll leverage our existing mouse motion listener
+                SDLGenericMotionListener_API14 motionListener = SDLActivity.getMotionListener();
+                x = motionListener.getEventX(event, i);
+                y = motionListener.getEventY(event, i);
+                relative = motionListener.inRelativeMode();
+
+                SDLActivity.onNativeMouse(buttonState, action, x, y, relative);
+            } else if (toolType == MotionEvent.TOOL_TYPE_STYLUS || toolType == MotionEvent.TOOL_TYPE_ERASER) {
+                pointerId = event.getPointerId(i);
+                x = event.getX(i);
+                y = event.getY(i);
+                p = event.getPressure(i);
+                if (p > 1.0f) {
+                    // may be larger than 1.0f on some devices
+                    // see the documentation of getPressure(i)
+                    p = 1.0f;
+                }
+
+                // BUTTON_STYLUS_PRIMARY is 2^5, so shift by 4, and apply SDL_PEN_INPUT_DOWN/SDL_PEN_INPUT_ERASER_TIP
+                int buttonState = (event.getButtonState() >> 4) | (1 << (toolType == MotionEvent.TOOL_TYPE_STYLUS ? 0 : 30));
+
+                SDLActivity.onNativePen(pointerId, buttonState, action, x, y, p);
+            } else { // MotionEvent.TOOL_TYPE_FINGER or MotionEvent.TOOL_TYPE_UNKNOWN
+                pointerId = event.getPointerId(i);
+                x = getNormalizedX(event.getX(i));
+                y = getNormalizedY(event.getY(i));
+                p = event.getPressure(i);
+                if (p > 1.0f) {
+                    // may be larger than 1.0f on some devices
+                    // see the documentation of getPressure(i)
+                    p = 1.0f;
+                }
+
+                SDLActivity.onNativeTouch(touchDevId, pointerId, action, x, y, p);
+            }
+
+            // Non-primary up/down
+            if (action == MotionEvent.ACTION_POINTER_UP || action == MotionEvent.ACTION_POINTER_DOWN)
+                break;
+        } while (++i < pointerCount);
+
+        return true;
+    }
+
+    // Sensor events
+    protected void enableSensor(int sensortype, boolean enabled) {
+        // TODO: This uses getDefaultSensor - what if we have >1 accels?
+        if (enabled) {
+            mSensorManager.registerListener(this,
+                            mSensorManager.getDefaultSensor(sensortype),
+                            SensorManager.SENSOR_DELAY_GAME, null);
+        } else {
+            mSensorManager.unregisterListener(this,
+                            mSensorManager.getDefaultSensor(sensortype));
+        }
+    }
+
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy) {
+        // TODO
+    }
+
+    @Override
+    public void onSensorChanged(SensorEvent event) {
+        if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
+
+            // Since we may have an orientation set, we won't receive onConfigurationChanged events.
+            // We thus should check here.
+            int newRotation;
+
+            float x, y;
+            switch (mDisplay.getRotation()) {
+                case Surface.ROTATION_0:
+                default:
+                    x = event.values[0];
+                    y = event.values[1];
+                    newRotation = 0;
+                    break;
+                case Surface.ROTATION_90:
+                    x = -event.values[1];
+                    y = event.values[0];
+                    newRotation = 90;
+                    break;
+                case Surface.ROTATION_180:
+                    x = -event.values[0];
+                    y = -event.values[1];
+                    newRotation = 180;
+                    break;
+                case Surface.ROTATION_270:
+                    x = event.values[1];
+                    y = -event.values[0];
+                    newRotation = 270;
+                    break;
+            }
+
+            if (newRotation != SDLActivity.mCurrentRotation) {
+                SDLActivity.mCurrentRotation = newRotation;
+                SDLActivity.onNativeRotationChanged(newRotation);
+            }
+
+            SDLActivity.onNativeAccel(-x / SensorManager.GRAVITY_EARTH,
+                                      y / SensorManager.GRAVITY_EARTH,
+                                      event.values[2] / SensorManager.GRAVITY_EARTH);
+
+
+        }
+    }
+
+    // Captured pointer events for API 26.
+    @Override
+    public boolean onCapturedPointerEvent(MotionEvent event)
+    {
+        int action = event.getActionMasked();
+        int pointerCount = event.getPointerCount();
+
+        for (int i = 0; i < pointerCount; i++) {
+            float x, y;
+            switch (action) {
+                case MotionEvent.ACTION_SCROLL:
+                    x = event.getAxisValue(MotionEvent.AXIS_HSCROLL, i);
+                    y = event.getAxisValue(MotionEvent.AXIS_VSCROLL, i);
+                    SDLActivity.onNativeMouse(0, action, x, y, false);
+                    return true;
+
+                case MotionEvent.ACTION_HOVER_MOVE:
+                case MotionEvent.ACTION_MOVE:
+                    x = event.getX(i);
+                    y = event.getY(i);
+                    SDLActivity.onNativeMouse(0, action, x, y, true);
+                    return true;
+
+                case MotionEvent.ACTION_BUTTON_PRESS:
+                case MotionEvent.ACTION_BUTTON_RELEASE:
+
+                    // Change our action value to what SDL's code expects.
+                    if (action == MotionEvent.ACTION_BUTTON_PRESS) {
+                        action = MotionEvent.ACTION_DOWN;
+                    } else { /* MotionEvent.ACTION_BUTTON_RELEASE */
+                        action = MotionEvent.ACTION_UP;
+                    }
+
+                    x = event.getX(i);
+                    y = event.getY(i);
+                    int button = event.getButtonState();
+
+                    SDLActivity.onNativeMouse(button, action, x, y, true);
+                    return true;
+            }
+        }
+
+        return false;
+    }
+}

android-project/app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

android-project/app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Game</string>
+</resources>

android-project/app/src/main/res/values/styles.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="android:Theme.NoTitleBar.Fullscreen">
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

android-project/build.gradle

@@ -0,0 +1,25 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        mavenCentral()
+        google()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:8.7.3'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        mavenCentral()
+        google()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

android-project/gradle.properties

@@ -0,0 +1,17 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true

android-project/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Thu Nov 11 18:20:34 PST 2021
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME

android-project/gradlew

@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|grep -E -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|grep -E -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

android-project/gradlew.bat

@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

android-project/settings.gradle

@@ -0,0 +1 @@
+include ':app'