Question

我希望在收到来电时暂停音乐，并在通话断开时播放音乐。

为此我创建了

<receiver android:name="my receiver class">
    <intent-filter>
       <action android:name="android.intent.action.PHONE_STATE" />
    </intent-filter>
</receiver>

在我的接收器课程中我做了这个

if(intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(TelephonyManager.EXTRA_STATE_RINGING)) {
    //Pause Music
} else if (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(TelephonyManager.EXTRA_STATE_IDLE) 
    || intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(TelephonyManager.EXTRA_STATE_OFFHOOK)) {
    System.out.println("on phone disconnected");
    //Play music
}

有了这个，我可以在接听电话时暂停音乐，但是当电话断开连接时，音乐会在延迟1-5分钟后播放。

请帮帮我

Answer 1

我建议在你正在处理媒体播放器的类中实现AudioManager.OnAudioFocusChangeListener。

首先请求像这样的AudioFocus

    AudioManager am = mContext.getSystemService(Context.AUDIO_SERVICE);
// Request audio focus for playback
int result = am.requestAudioFocus(afChangeListener,
                                 // Use the music stream.
                                 AudioManager.STREAM_MUSIC,
                                 // Request permanent focus.
                                 AudioManager.AUDIOFOCUS_GAIN);

if (result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) {
    am.registerMediaButtonEventReceiver(RemoteControlReceiver);
    // Start playback.
}

然后覆盖onAudioFocusChange方法

@Override
public void onAudioFocusChange(int focusChange) {
    switch (focusChange) {
        case AudioManager.AUDIOFOCUS_GAIN: Log.d("Audio focus gained"); // when call is ended
            //play music
            break;

        case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT: Log.d("Audio focus lost transient"); // Means a call is coming


        case AudioManager.AUDIOFOCUS_LOSS: Log.d("Audio focus lost"); // When call is received
            //pause music
            break;

        default: Log.d("Focus changed : " + focusChange);
    }
}

以下是文档AudioFocus

Answer 2

希望这会有所帮助

关于活动或片段，请执行以下操作

@Override
public void onStart() {
    // Start music
    super.onStart();
}

@Override
public void onStop() {
    // Stop music
    super.onStop();
}

收到来电时暂停音乐，断开呼叫时播放音乐

2 个答案: