Best way to execute method asynchronously in Android (compact and correct)

Question

Say I have an Activity showing some content on screen. I need to execute some method (asyncMethod) asynchronously and when it is done, I need to update data on screen. What is the most correct and simple way to do this?

Currently the most simple way I know is using thread:

new Thread(new Runnable() {         
    public void run() {
        asyncMethod();              
    }
}).start();

I'm familiar with AsyncTask, but it is more complex than using thread and for each method i need to run asynchronously there is a need to create new AsyncTask while this is greatly increases code size.

I thought about some generic AsincTask which gets method as a parameter and than executes it, but as far as i know it is impossible in Java to pass methods as parameters.

In other words I'm looking for most compact(but correct) way to execute methods asynchronously.

Answer 1

Handler and Looper.

Most of the times, keep the Handler to the Looper of UI thread and then use it to post Runnable. For example:

Handler h = new Handler();
//later to update UI
h.post(new Runnable(//whatever);

PS: Handler and Looper are awesome. So much that I remade them for Java.