How to repeat a task after a fixed amount of time in android?

Question

I want to repeatedly call a method after every 5-seconds and whenever I wish to to stop the repeated call of the method I may stop or restart the repeated call of the method

Answer 1

Do it in Android's way with the help of Handler.

Declare a Handler which does not leak Memory

/**
     * Instances of static inner classes do not hold an implicit
     * reference to their outer class.
     */
    private static class NonLeakyHandler extends Handler {
        private final WeakReference mActivity;

        public NonLeakyHandler(FlashActivity activity) {
            mActivity = new WeakReference(activity);
        }

        @Override
        public void handleMessage(Message msg) {
            FlashActivity activity = mActivity.get();
            if (activity != null) {
                // ...
            }
        }
    }

Declare a runnable which handle your task

   private Runnable repeatativeTaskRunnable = new Runnable() {
        public void run() {
            new Handler(getMainLooper()).post(new Runnable() {
                @Override
                public void run() {

         //DO YOUR THINGS
        }
    };

Initialize handler object in your Activity/Fragment

//Task Handler
private Handler taskHandler = new NonLeakyHandler(FlashActivity.this);

Repeat task after fix time interval

taskHandler.postDelayed(repeatativeTaskRunnable , DELAY_MILLIS);

Stop repetition

taskHandler .removeCallbacks(repeatativeTaskRunnable );