android 测试警报 - 无法激活它

Question

我在我的应用程序中设置了一个闹钟来通知用户。我想测试它，但不知道如何将它设置为当前时间 + 2 分钟。我该怎么做？

这是我的代码

Intent myIntent = new Intent(MainActivity.this , PopupWin.class);
    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    pendingIntent = PendingIntent.getService(MainActivity.this, 0, myIntent, 0);
    Calendar calendar = Calendar.getInstance();
  //  calendar.set(Calendar.HOUR_OF_DAY, 13);
   // calendar.set(Calendar.MINUTE, 00);
   // calendar.set(Calendar.SECOND, 00);
    calendar.setTimeInMillis((int)((calendar.getTimeInMillis()+calendar.getTimeZone().getOffset(calendar.getTimeInMillis()))/1000));

    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 24*60*60*1000 , pendingIntent);  //set repeating every 24 hours

Answer 1

为什么不尝试创建一个 Timer？

先添加这个字段：

private static int delayTime = 2*60*1000 // interval time before the execution of your code is started (in millisecond)

从现在起 2 分钟后执行您的代码：

Timer timer = new Timer();
timer.schedule(new TimerTask() {
    @Override
    public void run() {
        notifyUser(); // notify the user
    }
}, delayTime);

Answer 2

要从当前时间起触发两分钟的警报，请执行此操作，

alarmManager.set(AlarmManager.RTC_WAKEUP, (calendar.getTimeInMillis()+(60*2*1000)) , operation);

android 测试警报 - 无法激活它

android test alarm - can't activate it

android

timer

alert