我如何运行我的应用程序时，设备处于锁定状态和屏幕处于关闭状态？

问题描述

我使用的报警服务，让应用程序运行时，我的手机被锁定，屏幕关闭，但它不能正常工作。

I am using Alarm services to keep my application running when mobile is locked and screen turned off but it does not work.

我的报警服务类是：

public class AlarmService extends BroadcastReceiver {

  // Restart service every 60 seconds
  private static final long REPEAT_TIME = 1000 * 60;

  @Override
  public void onReceive(Context context, Intent intent) {
    AlarmManager service = (AlarmManager) context
        .getSystemService(Context.ALARM_SERVICE);
    Intent i = new Intent(context, StartUp_broadcast.class);
    PendingIntent pending = PendingIntent.getBroadcast(context, 0, i,
        PendingIntent.FLAG_CANCEL_CURRENT);
    Calendar cal = Calendar.getInstance();
    // Start 60 seconds after boot completed
    cal.add(Calendar.SECOND, 60);
    //
    // Fetch every 60 seconds
    // InexactRepeating allows Android to optimize the energy consumption
    service.setRepeating   (AlarmManager.RTC_WAKEUP,
        cal.getTimeInMillis(), REPEAT_TIME, pending);

    // service.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),
    // REPEAT_TIME, pending);

  }
}

和我brodcast服务类是：

and my brodcast service class is:

public class StartUp_broadcast extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    Intent myIntent = new Intent(context, AlarmService.class);
    PendingIntent pendingIntent = PendingIntent.
                                     getService(context, 0, myIntent, 0);
    AlarmManager alarmManager = (AlarmManager) context
                                .getSystemService(Context.ALARM_SERVICE);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
                  System.currentTimeMillis() + 1000, 1000, pendingIntent);
    Intent Startup_Intent = new Intent(context, LocationService.class);
    Startup_Intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startService(Startup_Intent);
}

}

我的主要活动类有PowerManager的服务为WakeLock

My main Activity class has PowerManager Service for WakeLock

 @Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MyWakeUp");
    wl.acquire(1000); //wake up the screen
    setContentView(R.layout.main);

    this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);

请帮我。如何保持应用程序运行时，我的手机被锁定，scrren熄灭？

Kindly help me. How to keep my application running when mobile is locked and scrren is off ?

推荐答案

如果你想在运行应用程序的屏幕锁定，并运行alaram那么你需要在开机启动服务。可能是这个环节是有益的给你。 http://www.androidcompetencycenter.com/2009/06/start-服务在启动/

If you want to run application when screen lock and also run alaram then you need to start service at boot. may be this link is helpfull to you.http://www.androidcompetencycenter.com/2009/06/start-service-at-boot/

先阅读和做一步你自己的一步。我希望这是有益的给你。

first read and do your self step by step. i hope it is helpfull to you.

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