Update the UI outside the main thread

Question

I am totaly new to android and just want to know if it is any working and possible way to update the UI outside the main thread. Just from my code I have listed below I know

Answer 1

you have to use an Handler instance and use the post method do add a Runnable inside the queue of the UI Thread. If you are inside an Activity you can use runOnUiThread that is a "shortcut" to do the same thing