Android: Update ListView Items every 1 minute

Question

I have a Custom ListView in my application, containing an ImageView and 3-5 TextViews.

1 of the TextViews shows the time gap between the current time

Answer 1

Use a Handler and its postDelayed method to invalidate the list's adapter as follows:

final Handler handler = new Handler()
handler.postDelayed( new Runnable() {

    @Override
    public void run() {
        adapter.notifyDataSetChanged();
        handler.postDelayed( this, 60 * 1000 );
    }
}, 60 * 1000 );

You must only update UI in the main (UI) thread.

By creating the handler in the main thread, you ensure that everything you post to the handler is run in the main thread also.