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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.media;
import android.content.Context;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
/**
* MediaSessionManager allows the creation and control of MediaSessions in the
* system. A MediaSession enables publishing information about ongoing media and
* interacting with MediaControllers and MediaRoutes.
* <p>
* Use <code>Context.getSystemService(Context.MEDIA_SESSION_SERVICE)</code> to
* get an instance of this class.
* <p>
*
* @see MediaSession
* @see MediaController
*/
public final class MediaSessionManager {
private static final String TAG = "MediaSessionManager";
private final IMediaSessionManager mService;
private Context mContext;
/**
* @hide
*/
public MediaSessionManager(Context context) {
// Consider rewriting like DisplayManagerGlobal
// Decide if we need context
mContext = context;
IBinder b = ServiceManager.getService(Context.MEDIA_SESSION_SERVICE);
mService = IMediaSessionManager.Stub.asInterface(b);
}
/**
* Creates a new session.
*
* @param tag A short name for debugging purposes
* @return a {@link MediaSession} for the new session
*/
public MediaSession createSession(String tag) {
try {
MediaSession.CallbackStub cbStub = new MediaSession.CallbackStub();
MediaSession session = new MediaSession(mService
.createSession(mContext.getPackageName(), cbStub, tag), cbStub);
cbStub.setMediaSession(session);
return session;
} catch (RemoteException e) {
Log.e(TAG, "Failed to create session: ", e);
return null;
}
}
/**
* Get a list of controllers for all ongoing sessions. This requires the
* android.Manifest.permission.MEDIA_CONTENT_CONTROL permission be held by
* the calling app.
*
* @return a list of controllers for ongoing sessions
*/
public List<MediaController> getActiveSessions() {
// TODO
return new ArrayList<MediaController>();
}
}
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