从棉花糖及以上服务启动时AlarmManager失败

Question

我试图建立一个简单的报警管理的服务。

test_cases.

如果我从活动开始报警管理，它的工作原理

    Intent intentzz = new Intent(getApplicationContext(), Homev2.class);
    PendingIntent pi = PendingIntent.getActivity(getApplicationContext(), 0, intentzz, PendingIntent.FLAG_CANCEL_CURRENT);

    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.SECOND, 5);
    AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
    am.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pi);

但是，如果我尝试从服务启动一样，它只是不，我没有得到任何错误

public class MyService extends Service {
public MyService() {
}

@Override
public IBinder onBind(Intent intent) {
    // TODO: Return the communication channel to the service.
   // throw new UnsupportedOperationException("Not yet implemented");
    return null;
}

@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    Log.e("we here", "here");

    Intent intent1 = new Intent(getApplicationContext(), SettingsActivity.class);
    PendingIntent pi = PendingIntent.getActivity(getApplicationContext(), 1,intent1, 0);
    Calendar cal = Calendar.getInstance();
    cal.add(Calendar.MINUTE, 5);
    AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
    am.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pi);
    return super.onStartCommand(intent, flags, startId);
}
}

可能是什么问题？

Answer 1

尝试改变这一点：

    Intent intent1 = new Intent(getApplicationContext(), SettingsActivity.class);
    PendingIntent pi = PendingIntent.getActivity(getApplicationContext(), 1,intent1, 0);

为此：

    Intent intent1 = new Intent(this, SettingsActivity.class);
    PendingIntent pi = PendingIntent.getActivity(this, 1,intent1, 0);