MediaSessionCompatApi24.java revision 8f886fe8c7e23fe6ccb8734167c960c2ed3429c3 
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
17package android.support.v4.media.session;
18
19import android.annotation.TargetApi;
20import android.media.session.MediaSession;
21import android.net.Uri;
22import android.os.Bundle;
23import android.support.annotation.RequiresApi;
24import android.util.Log;
25
26import java.lang.reflect.InvocationTargetException;
27import java.lang.reflect.Method;
28
29@RequiresApi(24)
30@TargetApi(24)
31class MediaSessionCompatApi24 {
32    private static final String TAG = "MediaSessionCompatApi24";
33
34    public static Object createCallback(Callback callback) {
35        return new CallbackProxy<Callback>(callback);
36    }
37
38    public static String getCallingPackage(Object sessionObj) {
39        MediaSession session = (MediaSession) sessionObj;
40        try {
41            Method getCallingPackageMethod = session.getClass().getMethod("getCallingPackage");
42            return (String) getCallingPackageMethod.invoke(session);
43        } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
44            Log.e(TAG, "Cannot execute MediaSession.getCallingPackage()", e);
45        }
46        return null;
47    }
48
49    public interface Callback extends MediaSessionCompatApi23.Callback {
50        public void onPrepare();
51        public void onPrepareFromMediaId(String mediaId, Bundle extras);
52        public void onPrepareFromSearch(String query, Bundle extras);
53        public void onPrepareFromUri(Uri uri, Bundle extras);
54    }
55
56    static class CallbackProxy<T extends Callback>
57            extends MediaSessionCompatApi23.CallbackProxy<T> {
58        public CallbackProxy(T callback) {
59            super(callback);
60        }
61
62        @Override
63        public void onPrepare() {
64            mCallback.onPrepare();
65        }
66
67        @Override
68        public void onPrepareFromMediaId(String mediaId, Bundle extras) {
69            mCallback.onPrepareFromMediaId(mediaId, extras);
70        }
71
72        @Override
73        public void onPrepareFromSearch(String query, Bundle extras) {
74            mCallback.onPrepareFromSearch(query, extras);
75        }
76
77        @Override
78        public void onPrepareFromUri(Uri uri, Bundle extras) {
79            mCallback.onPrepareFromUri(uri, extras);
80        }
81    }
82}
83