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      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.transition.ChangeBounds;
     21 import android.view.View;
     22 import android.view.ViewGroup;
     23 import android.transition.Scene;
     24 import android.transition.TransitionManager;
     25 import android.widget.Button;
     26 
     27 public class Reparenting extends Activity {
     28 
     29     ViewGroup mSceneRoot;
     30     ViewGroup mContainer1, mContainer2;
     31 
     32     @Override
     33     public void onCreate(Bundle savedInstanceState) {
     34         super.onCreate(savedInstanceState);
     35         setContentView(R.layout.reparenting);
     36 
     37         ViewGroup container = findViewById(R.id.container);
     38         mContainer1 = findViewById(R.id.container1);
     39         mContainer2 = findViewById(R.id.container2);
     40         System.out.println("container 1 and 2 " + mContainer1 + ", " + mContainer2);
     41 
     42         setupButtons(0, mContainer1);
     43         setupButtons(3, mContainer2);
     44 
     45         mSceneRoot = container;
     46     }
     47 
     48     private void setupButtons(int startIndex, ViewGroup parent) {
     49         for (int i = startIndex; i < (startIndex + 3); ++i) {
     50             Button button = new Button(this);
     51             button.setText(Integer.toString(i));
     52             button.setOnClickListener(mButtonListener);
     53             parent.addView(button);
     54         }
     55     }
     56 
     57     private View.OnClickListener mButtonListener = new View.OnClickListener() {
     58         @Override
     59         public void onClick(final View v) {
     60             Scene newScene = new Scene(mSceneRoot);
     61             newScene.setEnterAction(new Runnable() {
     62                 @Override
     63                 public void run() {
     64                     ViewGroup oldParent = (ViewGroup) v.getParent();
     65                     ViewGroup newParent = oldParent == mContainer1 ? mContainer2 : mContainer1;
     66                     oldParent.removeView(v);
     67                     newParent.addView(v);
     68                 }
     69             });
     70             ChangeBounds reparent = new ChangeBounds();
     71             reparent.setReparent(true);
     72             TransitionManager.go(newScene, reparent);
     73         }
     74     };
     75 }
     76