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package com.googlecode.android_scripting.facade.media;
import android.app.Service;
import android.content.Context;
import android.media.AudioManager;
import android.media.AudioManager.OnAudioFocusChangeListener;
import com.googlecode.android_scripting.facade.EventFacade;
import com.googlecode.android_scripting.facade.FacadeManager;
import com.googlecode.android_scripting.jsonrpc.RpcReceiver;
import com.googlecode.android_scripting.rpc.Rpc;
public class AudioManagerFacade extends RpcReceiver {
private final Service mService;
private final EventFacade mEventFacade;
private final AudioManager mAudio;
private final OnAudioFocusChangeListener mFocusChangeListener;
private boolean mIsFocused;
public AudioManagerFacade(FacadeManager manager) {
super(manager);
mService = manager.getService();
mEventFacade = manager.getReceiver(EventFacade.class);
mAudio = (AudioManager) mService.getSystemService(Context.AUDIO_SERVICE);
mFocusChangeListener = new OnAudioFocusChangeListener() {
public void onAudioFocusChange(int focusChange) {
if (focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK) {
mIsFocused = false;
} else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
mIsFocused = true;
}
}
};
}
@Rpc(description = "Checks whether any music is active.")
public Boolean audioIsMusicActive() {
return mAudio.isMusicActive();
}
@Rpc(description = "Checks whether A2DP audio routing to the Bluetooth headset is on or off.")
public Boolean audioIsBluetoothA2dpOn() {
return mAudio.isBluetoothA2dpOn();
}
@Rpc(description = "Request audio focus for sl4a.")
public Boolean audioRequestAudioFocus() {
int status = mAudio.requestAudioFocus(mFocusChangeListener,
AudioManager.STREAM_MUSIC,
AudioManager.AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK);
if (status == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) {
mIsFocused = true;
return true;
}
mIsFocused = false;
return false;
}
@Rpc(description = "Whether sl4a has the audio focus or not.")
public Boolean audioIsFocused() {
return mIsFocused;
}
@Override
public void shutdown() {
mAudio.abandonAudioFocus(mFocusChangeListener);
}
}
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