postDelayed OnClickListener is not working

Question

I am trying to implement a delay on button click, each second I need to remove one item from a list called solved_cells, the list initially has 16 items. below is what I did:

solve_all.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

                   while (solved_cells.size()>=1) {
                       v.postDelayed(new Runnable() {
                           @Override
                           public void run() {
                               //Execute code here
                        solved_cells.remove(solved_cells.size() - 1);
                          }
                       }, 1000L);

                    }
        }
    });

but each time I debug , I see the code reach to :

v.postDelayed(new Runnable() {

and doesn't touch the public void run() { function, Your suggestions are highly appreciated.

Answer 1

i don't know exactly what your problem in your code but you can use timer instead like this by creating TimerTask class

   Timer timer;
   MyTimerTask timerTask;
private class MyTimerTask extends TimerTask {

    @Override
    public void run() {
        try {
            activity.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    if (solved_cells.size() > 0) {
                        solved_cells.remove(solved_cells.size() - 1);
                    } else {

                        timer.cancel();
                        timer.purge();
                    }
                }
            });
        } catch (Exception e) {
            // e.printStackTrace();
        }
    }
}

and in your listener you can declare it like this

solve_all.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
      timerTask = new MyTimerTask();
      Timer t = new Timer();
      t.schedule(timerTask , 1000L);

    }
});