Gallery2: fix video can play while telephony call is in progress.

Doesn't allow play/resume video, while telephony call is in progress.
And pause video if request audio focus failed.

Change-Id: I9b29fef45f5038ffe7573e5f5eea2a12a56c43ae
CRs-Fixed: 945033

1 files changed, 18 insertions, 4 deletions

diff --git a/src/org/codeaurora/gallery3d/video/CodeauroraVideoView.java b/src/org/codeaurora/gallery3d/video/CodeauroraVideoView.java
index e3f441e95..c6956e68c 100644
--- a/src/org/codeaurora/gallery3d/video/CodeauroraVideoView.java
+++ b/src/org/codeaurora/gallery3d/video/CodeauroraVideoView.java
@@ -98,7 +98,11 @@ public class CodeauroraVideoView extends SurfaceView implements MediaPlayerContr
     private boolean mIsShowDialog = false;
     private boolean mErrorDialogShowing = false;
     private KeyguardManager mKeyguardManager;
-    private AudioManager.OnAudioFocusChangeListener mAudioFocusListener;
+    private AudioFocusChangeListener mAudioFocusListener;
+
+    public interface AudioFocusChangeListener extends AudioManager.OnAudioFocusChangeListener {
+        public void onAudioFocusRequestFailed();
+    }
 
     private final Handler mHandler = new Handler() {
         public void handleMessage(final Message msg) {
@@ -622,7 +626,7 @@ public class CodeauroraVideoView extends SurfaceView implements MediaPlayerContr
         mOnInfoListener = l;
     }
 
-    public void setOnAudioFocusChangeListener(AudioManager.OnAudioFocusChangeListener l) {
+    public void setOnAudioFocusChangeListener(AudioFocusChangeListener l) {
         mAudioFocusListener = l;
     }
 
@@ -778,8 +782,18 @@ public class CodeauroraVideoView extends SurfaceView implements MediaPlayerContr
     public void start() {
         if (mIsShowDialog) return;
         if (isInPlaybackState()) {
-            mMediaPlayer.start();
-            mCurrentState = STATE_PLAYING;
+            AudioManager am = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
+            int result = am.requestAudioFocus(mAudioFocusListener, AudioManager.STREAM_MUSIC,
+                    AudioManager.AUDIOFOCUS_GAIN);
+            if (result != AudioManager.AUDIOFOCUS_REQUEST_FAILED) {
+                mMediaPlayer.start();
+                mCurrentState = STATE_PLAYING;
+            } else {
+                Log.w(TAG, "requestAudioFocus failed.");
+                if (mAudioFocusListener != null) {
+                    mAudioFocusListener.onAudioFocusRequestFailed();
+                }
+            }
         }
         mTargetState = STATE_PLAYING;
     }