1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.transitiontests; 17 18 import android.app.Activity; 19 import android.os.Bundle; 20 import android.view.View; 21 import android.view.ViewGroup; 22 import android.widget.Button; 23 24 25 public class OverlayTest extends Activity { 26 27 ViewGroup mContainer; 28 ViewGroup mRoot; 29 30 @Override onCreate(Bundle savedInstanceState)31 protected void onCreate(Bundle savedInstanceState) { 32 super.onCreate(savedInstanceState); 33 setContentView(R.layout.overlay_test); 34 35 mContainer = (ViewGroup) findViewById(R.id.container); 36 mRoot = (ViewGroup) mContainer.getParent(); 37 } 38 onClick(View view)39 public void onClick(View view) { 40 final Button fadingButton = (Button) findViewById(R.id.fadingButton); 41 if (fadingButton != null) { 42 mContainer.removeView(fadingButton); 43 mRoot.getOverlay().add(fadingButton); 44 fadingButton.animate().alpha(0).setDuration(1000).withEndAction(new Runnable() { 45 @Override 46 public void run() { 47 fadingButton.setAlpha(1); 48 mRoot.getOverlay().remove(fadingButton); 49 mContainer.addView(fadingButton); 50 } 51 }); 52 } 53 } 54 } 55