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