What is the best way to implement auto refresh of contents in an activity?

Question

My activity contains data retrieved from internet. I want the activity to automatically refresh its content every 5 minute. What is the best way to implement it? Should I use java's Timer and TimerTask?

Thanks.

Answer 1

You need to setup an alarm to fire at regular interval, and once the alarm fires(broadcastreceiver) make sure it calls notifiyDataSet on your adapter, so the system will automatically rebuild your listview (if you are using one)

This is a sample code to setup an alarm to fire X minutes from now

Intent intent = new Intent(this, WeatherRefreshService.class);
PendingIntent sender = PendingIntent.getService(this, 0, intent, 0);

// We want the alarm to go off 60 seconds from now.
long firstTime = SystemClock.elapsedRealtime();
firstTime += REPEATING_ALARM_INTERVAL_IN_MINUTES * 60 * 1000;

// Schedule the alarm!
AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime,
        REPEATING_ALARM_INTERVAL_IN_MINUTES * 60 * 1000, sender);

This example uses a PendingIntent for a Service, but you can change that to a broadcast if you like too.