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 */
16package com.android.transitiontests;
17
18import android.app.Activity;
19import android.os.Bundle;
20import android.view.View;
21import android.view.ViewGroup;
22import android.transition.TransitionManager;
23import android.widget.Button;
24
25public class FadingHierarchy extends Activity {
26
27    ViewGroup mRemovingContainer, mContainer;
28    Button mRemovingButton;
29    boolean mVisible = true;
30    ViewGroup mInnerContainerParent;
31
32    @Override
33    public void onCreate(Bundle savedInstanceState) {
34        super.onCreate(savedInstanceState);
35        setContentView(R.layout.fading_hierarchy);
36
37        mContainer = (ViewGroup) findViewById(R.id.container);
38        mRemovingContainer = (ViewGroup) findViewById(R.id.removingContainer);
39        mInnerContainerParent = (ViewGroup) mRemovingContainer.getParent();
40
41        mRemovingButton = (Button) findViewById(R.id.removingButton);
42    }
43
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