一款AndroidUsb摄像头数据获取库。无需root权限。

dependencies {
        compile 'com.github.hailindai:AndroidUSBCamera:v1.0.0'
}


例子代码：

private static final String TAG = "MainActivity";

//摄像头控制类
USBCamera camera;
//USB插拔监听类
USBMonitor usbMonitor;
SurfaceTexture surfaceTexture = new SurfaceTexture(10);

//类似 Andoid系统相机onPreviewFrame
private final IFrameCallback mIFrameCallback = new IFrameCallback() {
    @Override
    public void onFrame(final ByteBuffer frame) {
        Log.d(TAG,"onFrame app");

    }
};
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    //初始化USB插拔监听类
    usbMonitor = new USBMonitor();
    usbMonitor.init(this);
    usbMonitor.register(mOnDeviceConnectListener);

    //初始化摄像头控制类
    camera = new USBCamera();
    camera.init(this);
}

@Override
protected void onDestroy() {
    super.onDestroy();
    //销毁USB插拔监听类
    usbMonitor.unregister();
    usbMonitor.destroy();
    //销毁摄像头控制类
    camera.destroy();
}

//USB插拔监听回调接口
private final OnDeviceConnectListener mOnDeviceConnectListener = new OnDeviceConnectListener() {
    @Override
    public void onAttach(final UsbDevice device) {
        Toast.makeText(MainActivity.this, "onAttach", Toast.LENGTH_SHORT).show();
        //请求连接摄像头
        usbMonitor.connectDevice(0);
    }

    @Override
    public void onConnect(final UsbDevice device, final UsbControlBlock ctrlBlock, final boolean createNew) {
        Log.v(TAG, "onConnect:");
        //连接摄像头成功，开始打开摄像头。
        Toast.makeText(MainActivity.this, "onConnect", Toast.LENGTH_SHORT).show();
        camera.open(ctrlBlock);
        camera.setPreviewSize(640,480);
        camera.setPreviewTexture(surfaceTexture);
        camera.setFrameCallback(mIFrameCallback);
        camera.startPreview();
    }

    @Override
    public void onDisconnect(final UsbDevice device, final UsbControlBlock ctrlBlock) {
        Toast.makeText(MainActivity.this, "onDisconnect", Toast.LENGTH_SHORT).show();
        Log.v(TAG, "onDisconnect:");
        //关闭摄像头
        camera.stopPreview();
        camera.close();
    }

    @Override
    public void onDetach(final UsbDevice device) {
        Toast.makeText(MainActivity.this, "onDetach", Toast.LENGTH_SHORT).show();
        Log.v(TAG, "onDetach:");

    }

    @Override
    public void onCancel() {
    }
};