/**
* Converts the cropped bitmap to a BitmapDrawable and returns the same.
*
* @param view The view for which a background drawable is required.
* @return Either the cropped bitmap as a Drawable or null.
*/
public Drawable getDrawable(View view) {
Bitmap bitmap = getCroppedBitmap(view);
if (bitmap == null) {
return null;
}
BitmapDrawable drawable = new BitmapDrawable(view.getContext().getResources(), bitmap);
drawable.setGravity(Gravity.TOP | Gravity.RIGHT);
drawable.setTileModeXY(Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
return drawable;
}
@Override
protected void onPostExecute(Bitmap result) {
super.onPostExecute(result);
BitmapDrawable next = new BitmapDrawable(result);
next.setGravity(android.view.Gravity.CENTER);
Drawable previous = imageView.getDrawable();
if (previous instanceof TransitionDrawable)
previous = ((TransitionDrawable) previous).getDrawable(1);
if (previous == null) imageView.setImageDrawable(next);
else {
Drawable[] drawables = {previous, next};
TransitionDrawable transition = new TransitionDrawable(drawables);
imageView.setImageDrawable(transition);
transition.startTransition(1000);
}
handler.postDelayed(updateSlideshow, DURATION);
}