| Methods Summary |
|---|
| private final synchronized void | init()
char[] buffer = new char[1024];
String newName = mHeadsetName;
int newState = mHeadsetState;
try {
FileReader file = new FileReader(HEADSET_STATE_PATH);
int len = file.read(buffer, 0, 1024);
newState = Integer.valueOf((new String(buffer, 0, len)).trim());
file = new FileReader(HEADSET_NAME_PATH);
len = file.read(buffer, 0, 1024);
newName = new String(buffer, 0, len).trim();
} catch (FileNotFoundException e) {
Log.w(TAG, "This kernel does not have wired headset support");
} catch (Exception e) {
Log.e(TAG, "" , e);
}
mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
update(newName, newState);
|
| public void | onUEvent(UEventObserver.UEvent event)
Log.v(TAG, "Headset UEVENT: " + event.toString());
try {
update(event.get("SWITCH_NAME"), Integer.parseInt(event.get("SWITCH_STATE")));
} catch (NumberFormatException e) {
Log.e(TAG, "Could not parse switch state from event " + event);
}
|
| private final synchronized void | sendIntent(boolean isUnplug)
// Pack up the values and broadcast them to everyone
Intent intent = new Intent(Intent.ACTION_HEADSET_PLUG);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
intent.putExtra("state", mHeadsetState);
intent.putExtra("name", mHeadsetName);
// TODO: Should we require a permission?
ActivityManagerNative.broadcastStickyIntent(intent, null);
if (isUnplug) {
intent = new Intent(AudioManager.ACTION_AUDIO_BECOMING_NOISY);
mContext.sendBroadcast(intent);
}
|
| private final synchronized void | update(java.lang.String newName, int newState)
if (newName != mHeadsetName || newState != mHeadsetState) {
boolean isUnplug = (newState == 0 && mHeadsetState == 1);
mHeadsetName = newName;
mHeadsetState = newState;
mAudioRouteNeedsUpdate = true;
sendIntent(isUnplug);
if (isUnplug) {
// It can take hundreds of ms flush the audio pipeline after
// apps pause audio playback, but audio route changes are
// immediate, so delay the route change by 1000ms.
// This could be improved once the audio sub-system provides an
// interface to clear the audio pipeline.
mHandler.sendEmptyMessageDelayed(0, 1000);
} else {
updateAudioRoute();
}
}
|
| private final synchronized void | updateAudioRoute()
if (mAudioRouteNeedsUpdate) {
mAudioManager.setWiredHeadsetOn(mHeadsetState == 1);
mAudioRouteNeedsUpdate = false;
}
|
