How to run a method every X seconds

The solution you will use really depends on how long you need to wait between each execution of your function.

If you are waiting for longer than 10 minutes, I would suggest using AlarmManager.

// Some time when you want to runDate when = new Date(System.currentTimeMillis());try {    Intent someIntent = new Intent(someContext, MyReceiver.class); // intent to be launched    // Note: this could be getActivity if you want to launch an activity    PendingIntent pendingIntent = PendingIntent.getBroadcast(        context,        0, // id (optional)        someIntent, // intent to launch        PendingIntent.FLAG_CANCEL_CURRENT // PendingIntent flag    );    AlarmManager alarms = (AlarmManager) context.getSystemService(        Context.ALARM_SERVICE    );    alarms.setRepeating(        AlarmManager.RTC_WAKEUP,        when.getTime(),        AlarmManager.INTERVAL_FIFTEEN_MINUTES,        pendingIntent    );} catch(Exception e) {    e.printStackTrace();}

Once you have broadcasted the above Intent, you can receive your Intent by implementing a BroadcastReceiver. Note that this will need to be registered either in your application manifest or via the context.registerReceiver(receiver, intentFilter); method. For more information on BroadcastReceiver's please refer to the official documentation..

public class MyReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent)    {        System.out.println("MyReceiver: here!") // Do your work here    }}

If you are waiting for shorter than 10 minutes then I would suggest using a Handler.

final Handler handler = new Handler();final int delay = 1000; // 1000 milliseconds == 1 secondhandler.postDelayed(new Runnable() {    public void run() {        System.out.println("myHandler: here!"); // Do your work here        handler.postDelayed(this, delay);    }}, delay);

Use Timer for every second...

new Timer().scheduleAtFixedRate(new TimerTask() {    @Override    public void run() {        //your method    }}, 0, 1000);//put here time 1000 milliseconds=1 second

You can please try this code to call the handler every 15 seconds via onResume() and stop it when the activity is not visible, via onPause().

Handler handler = new Handler();Runnable runnable;int delay = 15*1000; //Delay for 15 seconds.  One second = 1000 milliseconds.@Overrideprotected void onResume() {   //start handler as activity become visible    handler.postDelayed( runnable = new Runnable() {        public void run() {            //do something            handler.postDelayed(runnable, delay);        }    }, delay);    super.onResume();}// If onPause() is not included the threads will double up when you // reload the activity @Overrideprotected void onPause() {    handler.removeCallbacks(runnable); //stop handler when activity not visible    super.onPause();}