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.transition.TransitionManager; 23 import android.widget.Button; 24 25 public class FadingHierarchy extends Activity { 26 27 ViewGroup mRemovingContainer, mContainer; 28 Button mRemovingButton; 29 boolean mVisible = true; 30 ViewGroup mInnerContainerParent; 31 32 @Override onCreate(Bundle savedInstanceState)33 public void onCreate(Bundle savedInstanceState) { 34 super.onCreate(savedInstanceState); 35 setContentView(R.layout.fading_hierarchy); 36 37 mContainer = findViewById(R.id.container); 38 mRemovingContainer = findViewById(R.id.removingContainer); 39 mInnerContainerParent = (ViewGroup) mRemovingContainer.getParent(); 40 41 mRemovingButton = findViewById(R.id.removingButton); 42 } 43 sendMessage(View view)44 public void sendMessage(View view) { 45 TransitionManager.beginDelayedTransition(mContainer, null); 46 if (mVisible) { 47 mInnerContainerParent.removeView(mRemovingContainer); 48 } else { 49 mInnerContainerParent.addView(mRemovingContainer); 50 } 51 mVisible = !mVisible; 52 } 53 } 54