如何每天在特定时间触发功能

Question

I am developing and android app. This app has several activities. I need the application, regardless of which activity it displays, to execute a query on the server at 2 am every day. I am currently using Timer and TimerTask, as follows:

Timer timer = new Timer();

TimerTask timerTask = new TimerTask() {
            public void run() {
                makePostToServer()
            }
        };

timer.scheduleAtFixedRate(timerTask, getDate(), 1000 * 60 * 60 * 24); // 24 h


private Date getDate() {
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.DATE, 1);
        cal.set(Calendar.HOUR_OF_DAY, 2);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);

        return cal.getTime();

}

Is there a chance that for some reason a Timer launched at the start of the application will stop working? Because the server logs do not always contain information about the executed query. It's as if it didn't happen.
Maybe there is a better way to call functions every day at 2.
Best regards

Answer 1

Instead of this use work manager for your need which is very efficient. In this case you can use periodic work manager .

Check out this for reference. https://developer.android.com/topic/libraries/architecture/workmanager

Happy Coding!!

Answer 2

There are several APIs available to schedule tasks in Android:

1. Alarm Manager
2. Job Scheduler
3. GCM Network Manager
4. Firebase Job Dispatcher
5. Sync Adapter

You can find a lot of sample easily.