I wrote test application for capturing the images with MediaProjection class.
imageReader = ImageReader.newInstance(currentWidth, currentHeight, PixelFormat.RGBA_8888, 2);
imageReader.setOnImageAvailableListener(this, null);
virtualDisplay = mediaProjection.createVirtualDisplay("captureDisplay",
currentWidth, currentHeight, DisplayManager.VIRTUAL_DISPLAY_FLAG_OWN_CONTENT_ONLY |
DisplayManager.VIRTUAL_DISPLAY_FLAG_PUBLIC|
DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR |
DisplayManager.VIRTUAL_DISPLAY_FLAG_SECURE |
DisplayManager.VIRTUAL_DISPLAY_FLAG_PRESENTATION, Screen.getDensity(mContext), imageReader.getSurface(), null, null);
// DisplayManager flags are trails only
and in onImageAvailable(ImageReader reader)
method
i tried to get the image as follows:
Bitmap bitmap;
Image mImage = null;
try {
mImage = mImageReader .acquireLatestImage();
if (img != null) {
final Image.Plane[] planes = mImage.getPlanes();
final ByteBuffer buffer = planes[0].getBuffer();
int pixelStride = planes[0].getPixelStride();
int rowStride = planes[0].getRowStride();
int rowPadding = rowStride - pixelStride * mImage.getWidth();
bitmap = Bitmap.createBitmap(mImage.getWidth() + rowPadding/pixelStride, mImage.getHeight(), Bitmap.Config.ARGB_8888);
bitmap.copyPixelsFromBuffer(buffer);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] rawData = lastImageAcquiredRaw = stream.toByteArray();
if (rawData != null) {
Bitmap fullScreen = BitmapFactory.decodeByteArray(rawData, 0, rawData.length);
savebitmap(fullScreen,"image",i); //Saving bitmap in storage
}
}
Till now I am OK and I am getting correct Image when my app is in landscape orientation. Problem facing is on orientation change, i am not getting proper images. Some times again on changing back to landscape also not capturing properly.
I gone through ImageReader.java class. Nothing has mentioned like need to handle in orientation changes.
Tried using acquireNextImageNoThrowISE(), acquireNextImage() but no use.
Did any one tried or having possibility to get proper image in orientation?
Please help me in getting proper image.