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public class CleanUtil {
    private CleanUtil() {
    }

    public static void unbindDrawables(View view) {
        if (view.getBackground() != null) {
            view.getBackground().setCallback(null);
            view.setBackground(null);
            if (view instanceof ImageView) {
                ((ImageView) view).setImageDrawable(null);
            }
        }
        if (view instanceof ViewGroup && !(view instanceof AdapterView)) {
            for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
                unbindDrawables(((ViewGroup) view).getChildAt(i));
            }
            ((ViewGroup) view).removeAllViews();
        }
    }
}