Why use Handler?

Question

I came across this code in a very basic Handler tutorial. The code is working fine but I do not understand why I have to use Handler for progressDialog.dismiss()

Answer 1

The easier the better. Instead of using a handler, you could try to use the following code:

runOnUiThread(
    new Runnable() { 
        public void run() 
        { 

        //Update user interface here

        } 
    }
);

Don't make your life to complicated ;)