Get screen shot bitmap

Code snippet:

public Bitmap getScreenShot(int x,int y,int width,int height){
        View v1 = getWindow().getDecorView().getRootView();
        v1.setDrawingCacheEnabled(true);
        final Bitmap screenShot = Bitmap.createBitmap(v1.getDrawingCache());
        v1.setDrawingCacheEnabled(false);
        final Bitmap cropBitmap = Bitmap.createBitmap(screenShot,x,y,width,height);
        return cropBitmap.copy(cropBitmap.getConfig(),true);
}