Question

I have an activity which has a TextView, and I want to update the text constantly..

In Java I could just make an infinite while loop, and just set the text each iteration.

But when I try to do that in Android, it shows a black screen, and doesn’t even load the activity.

I put the infinite in the onCreate method, perhaps that’s why it crashes..but if it is, where should I put it?

Answer 1

use Handler and a separate thread/runnable for updating TextView constantly instead of While loop :

Handler handler=new Handler();
handler.post(new Runnable(){ 
    @Override
    public void run() {
        // upadte textView here
        handler.postDelayed(this,500); // set time here to refresh textView
    }
});