Loading Icon in Activity TitleBar

How to show a loading icon in the activity titlebar?

Add the following code in your MainActivity class,

@Override
public void onCreate(Bundle icicle) {
   super.onCreate(icicle);
   requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
   setContentView(R.layout.your_layout);
}

then wherever you want

// then, you can do this to show the icon
setProgressBarIndeterminateVisibility(true);


//or to hide it
setProgressBarIndeterminateVisibility(false);

Note: Make sure to use requestWindowFeature before setContentView.