I have a
LinearLayout with a few
TextViews. I want my background to flash at timed intervals, say from red to white to red and so on. Right now, I am trying this code, but it gives me a null pointer exception.
LinearLayout ll = (LinearLayout) findViewById(R.layout.activity_main); Animation anim = new AlphaAnimation(0.0f, 1.0f); anim.setDuration(50); anim.setStartOffset(20); anim.setRepeatMode(Animation.REVERSE); anim.setRepeatCount(Animation.INFINITE); ll.startAnimation(anim); // shows null pointer exception at this line
Please help me where am I going wrong?</div