Question

我想在我的应用中每天在不同时间启动两项服务。为此，我在我的AlarmManager和SplashActivity中使用了SharedPreferences我修正了这个AlarmManager仅在第一次打开应用时运行。
我使用这些代码：

 @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash);

    //Check if first run, start alarms
    SharedPreferences preferences = getSharedPreferences("init", MODE_PRIVATE);
    if (preferences.getBoolean("firstTime", true)) {
        startCheckService(getApplicationContext());
        startMorningService(getApplicationContext());
        SharedPreferences.Editor editor = preferences.edit();
        editor.putBoolean("firstTime", false);
        editor.apply();

    }

这是警报的方法：

public void startCheckService(Context c){
    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.HOUR_OF_DAY,23);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);

    PendingIntent pi = PendingIntent.getService(c,0,new Intent(c,CheckService.class),PendingIntent.FLAG_UPDATE_CURRENT);
    AlarmManager am = (AlarmManager) c.getSystemService(ALARM_SERVICE);
    am.cancel(pi);
    am.setRepeating(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),24 * 60 * 60 * 1000,pi);
}

public void startMorningService(Context c){
    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.HOUR_OF_DAY,8);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);

    PendingIntent pi = PendingIntent.getService(c,0,new Intent(c,CheckTodayEvents.class),PendingIntent.FLAG_UPDATE_CURRENT);
    AlarmManager am = (AlarmManager) c.getSystemService(ALARM_SERVICE);
    am.cancel(pi);
    am.setRepeating(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),24 * 60 * 60 * 1000,pi);
}

但我的问题。每次我打开我的应用程序，alarmManager运行，我的服务运行。为什么？我怎么解决这个问题？

Answer 1

最后我找到了解决方案。唯一要做的就是将PendingIntent的Service和getService()更改为BroadcastReceiver：

public static void startCheckService(Context c){

    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.HOUR_OF_DAY,23);
    calendar.set(Calendar.MINUTE, 45);
    calendar.set(Calendar.SECOND, 0);

    if(calendar.getTimeInMillis() >= Calendar.getInstance().getTimeInMillis()) {

        PendingIntent pi = PendingIntent.getBroadcast(c, 0, new Intent(c, CheckService.class), PendingIntent.FLAG_UPDATE_CURRENT);
        AlarmManager am = (AlarmManager) c.getSystemService(ALARM_SERVICE);

        am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTime().getTime(), AlarmManager.INTERVAL_DAY, pi);
    }
}

我不知道为什么，但我的问题已经解决了。

警报管理器每日重复工作不正确

1 个答案: