To get Bitmap from resource image Bitmap bitmap = ((BitmapDrawable)getResources().getDrawable(R.drawable.test)).getBitmap(); It will return the Bitmap To get the Bitmap from Imageview Drawable imgDrawable = imageview.getDrawable(); Android Exmple to Convert Drawable to Bitmap How to change app icon Android studio
Bitmap bitmap = ((BitmapDrawable) imgDrawable).getBitmap();
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