Java tutorial
//package com.java2s; import android.graphics.drawable.Drawable; import android.view.View; import android.widget.ImageView; public class Main { private static void upEffect(View v) { //if(v.getBackground() == null) return; Drawable drwb; if (v instanceof ImageView) { drwb = ((ImageView) v).getDrawable(); } else { drwb = v.getBackground(); } if (drwb == null) return; drwb.clearColorFilter(); v.invalidate(); } }