意向服务时间间隔 未维护

Question

我创建了一个意图服务，它应该以用户定义的时间间隔向服务器发送数据，但在我的情况下，警报管理器没有正确维护该时间间隔。你能指导我在哪里出错。我也想在设备处于睡眠或空闲模式时运行该服务。这是我的代码。

   public void sosalarmson() {
        Intent intent = new Intent(getApplicationContext(), AlarmReceiver.class);
        final PendingIntent pendingIntent = PendingIntent.getBroadcast(this, AlarmReceiver.receivercode, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime(), Integer.parseInt(userdefinedinterval) *60* 1000, pendingIntent);
        Toast.makeText(FinalSettings.this, "alarm On", Toast.LENGTH_SHORT).show();
    }

理想情况下，如果我将用户输入设为 15，则警报应在 15 分钟发送意图，而在 10 分钟发送。

Answer 1

我正在使用这段代码，它运行良好：

定义：

final int SDK_INT = Build.VERSION.SDK_INT;
AlarmManager al;
PendingIntent fintent;
Intent notif;

我直接使用警报管理器启动服务。_alarm 是您预定义的时间间隔。

long _alarm;

        Calendar now = Calendar.getInstance();
        Calendar wakeupcall = Calendar.getInstance();
        wakeupcall.setTimeInMillis(System.currentTimeMillis());
        wakeupcall.set(Calendar.HOUR_OF_DAY, 18);
        wakeupcall.set(Calendar.MINUTE, 30);

        if (wakeupcall.getTimeInMillis() <= now.getTimeInMillis())
            _alarm=wakeupcall.getTimeInMillis() + (AlarmManager.INTERVAL_DAY+1);
        else
            _alarm=wakeupcall.getTimeInMillis();

al = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
        notif= new Intent(this,TestNotifyService.class);
        fintent = PendingIntent.getService(this,0,notif,0);

if (SDK_INT < Build.VERSION_CODES.KITKAT) {
            al.set(AlarmManager.RTC_WAKEUP,_alarm, fintent);
        }
        else if (Build.VERSION_CODES.KITKAT <= SDK_INT  && SDK_INT < Build.VERSION_CODES.M) {
            al.setExact(AlarmManager.RTC_WAKEUP,_alarm,fintent);
        }
        else if (SDK_INT >= Build.VERSION_CODES.M) {
            al.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP,_alarm,fintent);
        }