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Bug 5045498 Keep track of RemoteControlClient play state change time

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Store the time at which a RemoteControlClient changes it playback
 state, and send that time to the IRemoteControlDisplay.
This change will enable displays to implement strategies such as
 timeouts (e.g. to not display transport controls for clients which have
 been paused or stopped for a certain amount of time).

Change-Id: I902882500565743d455d56f6000efaf612cbe0a9
This commit is contained in:
Jean-Michel Trivi
2011-09-19 14:53:14 -07:00
parent bbb11b8010
commit 68622396b6
3 changed files with 49 additions and 7 deletions
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21
media/java/android/media/RemoteControlClient.java
View File

@@ -29,6 +29,7 @@ import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.RemoteException;
import android.os.SystemClock;
import android.util.Log;
import java.lang.IllegalArgumentException;
@@ -494,11 +495,15 @@ public class RemoteControlClient
*/
public void setPlaybackState(int state) {
synchronized(mCacheLock) {
// store locally
mPlaybackState = state;
if (mPlaybackState != state) {
// store locally
mPlaybackState = state;
// keep track of when the state change occurred
mPlaybackStateChangeTimeMs = SystemClock.elapsedRealtime();
// send to remote control display if conditions are met
sendPlaybackState_syncCacheLock();
// send to remote control display if conditions are met
sendPlaybackState_syncCacheLock();
}
}
}
@@ -533,6 +538,11 @@ public class RemoteControlClient
* Access synchronized on mCacheLock
*/
private int mPlaybackState = PLAYSTATE_NONE;
/**
* Time of last play state change
* Access synchronized on mCacheLock
*/
private long mPlaybackStateChangeTimeMs = 0;
/**
* Cache for the artwork bitmap.
* Access synchronized on mCacheLock
@@ -716,7 +726,8 @@ public class RemoteControlClient
private void sendPlaybackState_syncCacheLock() {
if ((mCurrentClientGenId == mInternalClientGenId) && (mRcDisplay != null)) {
try {
mRcDisplay.setPlaybackState(mInternalClientGenId, mPlaybackState);
mRcDisplay.setPlaybackState(mInternalClientGenId, mPlaybackState,
mPlaybackStateChangeTimeMs);
} catch (RemoteException e) {
Log.e(TAG, "Error in setPlaybackState(), dead display "+e);
detachFromDisplay_syncCacheLock();