Question

The scenario is, I am developing an app which reads integer value from file and store it in integer. And value that I get from that file is always changing cause it is cpu frequency value.

How do I keep watch on this value from my activity ?
The ways in my mind are through broadcast receiver, service, observer etc.
But dont know how do I implement..

Answer 1

I achieve this using chronometer tick listner. So on every tick of chronometer I read the file and set value to text view

chronometer = (Chronometer)findViewById(R.id.chronometer1);
    chronometer.setOnChronometerTickListener(new OnChronometerTickListener() 
    {

        @Override
        public void onChronometerTick(Chronometer arg0) 
        {
            //read file here and set the value to my textView
        }
    });
    chronometer.start();