1 /*
2  * Copyright (C) 2016 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 
17 package com.example.android.leanback;
18 
19 import android.app.Activity;
20 import android.os.Bundle;
21 
22 import java.util.ArrayList;
23 import java.util.List;
24 
25 /**
26  * Host PlaybackFragment and provide PIP events.
27  */
28 public class PlaybackActivity extends Activity {
29     private List<PictureInPictureListener> mListeners = new ArrayList<>();
30 
31     /** Called when the activity is first created. */
32     @Override
onCreate(Bundle savedInstanceState)33     public void onCreate(Bundle savedInstanceState) {
34         super.onCreate(savedInstanceState);
35         setContentView(R.layout.playback_activity);
36     }
37 
38     @Override
onPictureInPictureModeChanged(boolean isInPictureInPictureMode)39     public void onPictureInPictureModeChanged(boolean isInPictureInPictureMode) {
40         for (PictureInPictureListener listener : mListeners) {
41             listener.onPictureInPictureModeChanged(isInPictureInPictureMode);
42         }
43     }
44 
45     /**
46      * Register a PIP listener.
47      */
registerPictureInPictureListener(PictureInPictureListener listener)48     public void registerPictureInPictureListener(PictureInPictureListener listener) {
49         mListeners.add(listener);
50     }
51 
52     /**
53      * Unregister a PIP listener.
54      */
unregisterPictureInPictureListener(PictureInPictureListener listener)55     public void unregisterPictureInPictureListener(PictureInPictureListener listener) {
56         mListeners.remove(listener);
57     }
58 
59     /**
60      * Interface of PIP event on Activity.
61      */
62     public interface PictureInPictureListener {
63         /**
64          * Called when Activity's PIP mode is changed.
65          */
onPictureInPictureModeChanged(boolean isInPictureInPictureMode)66         void onPictureInPictureModeChanged(boolean isInPictureInPictureMode);
67     }
68 }
69