Resizes the Bitmap (can also be a Drawable with minor changes) to 32dip and masks and draws the checkmark

gistfile1.java

public Bitmap drawCheck(Bitmap in) {
	// http://forrst.com/posts/Bitmap_Drawable_Resize_on_Android-mjr
	// http://stackoverflow.com/questions/14801075/android-how-to-apply-mask-on-imageview

	float newWidth = 32;
	float newHeight = 32;

	Bitmap bitmapOrig = in;

	DisplayMetrics metrics = new DisplayMetrics();
	WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
	windowManager.getDefaultDisplay().getMetrics(metrics);

	float logicalDensity = metrics.density;

	float scaleWidth = ((float) newWidth) / bitmapOrig.getWidth();
	float scaleHeight = ((float) newHeight) / bitmapOrig.getHeight();
	Matrix matrix = new Matrix();
	matrix.postScale(scaleWidth * logicalDensity, scaleHeight * logicalDensity);

	Bitmap resizedBitmap = Bitmap.createBitmap(bitmapOrig, 0, 0, bitmapOrig.getWidth(), bitmapOrig.getHeight(), matrix, true);
	BitmapDrawable bitmapDrawableResized = new BitmapDrawable(context.getResources(), resizedBitmap);

	Bitmap mainImage = bitmapDrawableResized.getBitmap();
	Bitmap maskImage = BitmapFactory.decodeResource(context.getResources(), R.drawable.offline_thumb_mask); // get mask image
	Bitmap checkImage = BitmapFactory.decodeResource(context.getResources(), R.drawable.offline_thumb_check); // get checkmark image

	Bitmap result = Bitmap.createBitmap(mainImage.getWidth(), mainImage.getHeight(), Bitmap.Config.ARGB_8888);
	Canvas maskCanvas = new Canvas(result);

	Paint paint = new Paint();
	paint.setFilterBitmap(false);

	paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
	maskCanvas.drawBitmap(mainImage, 0, 0, null);
	maskCanvas.drawBitmap(maskImage, 0, 0, paint);
	maskCanvas.drawBitmap(checkImage, 0, 0, null);
	paint.setXfermode(null);

	return result;
}