Android 调用MediaSource的通用接口read获取屏幕数据

调用MediaSource的通用接口read获取屏幕数据的方法如下：

1. 获取MediaProjectionManager对象：

MediaProjectionManager mediaProjectionManager = (MediaProjectionManager) getSystemService(Context.MEDIA_PROJECTION_SERVICE);

2. 弹出屏幕捕捉请求：

startActivityForResult(mediaProjectionManager.createScreenCaptureIntent(), REQUEST_CODE);

3. 在onActivityResult方法中获取MediaProjection对象：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == REQUEST_CODE) {
        if (resultCode == RESULT_OK) {
            MediaProjection mediaProjection = mediaProjectionManager.getMediaProjection(resultCode, data);
            // TODO: 获取屏幕数据
        }
    }
}

4. 获取屏幕数据：

ImageReader imageReader = ImageReader.newInstance(width, height, PixelFormat.RGBA_8888, maxImages);
Surface surface = imageReader.getSurface();
VirtualDisplay virtualDisplay = mediaProjection.createVirtualDisplay(name, width, height, dpi, DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC, surface, null, null);
Image image = imageReader.acquireLatestImage();
if (image != null) {
    ByteBuffer byteBuffer = image.getPlanes()[0].getBuffer();
    int pixelStride = image.getPlanes()[0].getPixelStride();
    int rowStride = image.getPlanes()[0].getRowStride();
    int rowPadding = rowStride - pixelStride * width;
    Bitmap bitmap = Bitmap.createBitmap(width + rowPadding / pixelStride, height, Bitmap.Config.ARGB_8888);
    bitmap.copyPixelsFromBuffer(byteBuffer);
    image.close();
}