android-thread - w3toppers.com

When to use handler.post() & when to new Thread()

You should use Handler.post() whenever you want to do operations on the UI thread. So let’s say you want to change a TextView‘s text in the callback. Because the callback is not running on the UI thread, you should use Handler.post(). In Android, as in many other UI frameworks, UI elements (widgets) can be only … Read more

Repeat a task with a time delay?

You should use Handler‘s postDelayed function for this purpose. It will run your code with specified delay on the main UI thread, so you will be able to update UI controls. private int mInterval = 5000; // 5 seconds by default, can be changed later private Handler mHandler; @Override protected void onCreate(Bundle bundle) { // … Read more