屏幕锁定,但仍执行工作并收听ACTION\u MEDIA\u按钮

我有一个mainActivity,可以通过BroadcastReceiver类检测耳机中的点击,但只有当我的应用程序在前台时才可以。我希望在我的应用程序处于后台时也能做到同样的事情,或者在屏幕锁定时更具体一些。屏幕锁定后,立即单击耳机上的按钮可打开spotify。

在onCreate和等效onDestroy中,我尝试使用:

    powerMngr = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
    wakeLock = powerMngr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MyWakeLock");
    wakeLock.acquire();

然而,这并不是我想要的。为了实现这一目标,我需要采取哪些步骤?需要什么课程?当屏幕锁定时,如何执行工作?

编辑:经过进一步的研究,当我点击Headset按钮时,我至少知道为什么Spotify会启动。这是最后一次跑步 MediaSession . 如果我解释正确,我的应用程序似乎需要有最新的MediaSession和 mediaButtonReciever . 仍然不确定如何实现此tho: https://developer.android.com/guide/topics/media-apps/mediabuttons.html

这是im当前用于捕获耳机点击的服务:

public class HeadsetActionButtonReceiver extends BroadcastReceiver {

public static Delegate delegate;

private static AudioManager mAudioManager;
private static ComponentName mRemoteControlResponder;

private static int doublePressSpeed = 300; // double keypressed in ms
private static Timer doublePressTimer;
private static int counter;

public interface Delegate {
    void onMediaButtonSingleClick();
    void onMediaButtonDoubleClick();
}

@Override
public void onReceive(Context context, Intent intent) {
    if (intent == null || delegate == null || !Intent.ACTION_MEDIA_BUTTON.equals(intent.getAction()))
        return;

    KeyEvent keyEvent = (KeyEvent) intent.getExtras().get(Intent.EXTRA_KEY_EVENT);
    if (keyEvent == null || keyEvent.getAction() != KeyEvent.ACTION_DOWN) return;

    counter++;
    if (doublePressTimer != null) {
        doublePressTimer.cancel();
    }
    doublePressTimer = new Timer();
    doublePressTimer.schedule(new TimerTask() {

        @Override
        public void run() {
            if (counter == 1) {
                delegate.onMediaButtonSingleClick();
            } else {
                delegate.onMediaButtonDoubleClick();
            }
            counter = 0;
        }
    }, doublePressSpeed);
}

public static void register(final Context context) {
    mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
    mRemoteControlResponder = new ComponentName(context, HeadsetActionButtonReceiver.class);
    mAudioManager.registerMediaButtonEventReceiver(mRemoteControlResponder);
}

public static void unregister(final Context context) {
    mAudioManager.unregisterMediaButtonEventReceiver(mRemoteControlResponder);
    if (doublePressTimer != null) {
        doublePressTimer.cancel();
        doublePressTimer = null;
    }
}

}