How to make the application unfocusable, when some function is running?

I have a button in my application. When I clicked the button I am starting some function using thread. When the thread is running I don't want any of my view get focus (including tab also). How can I make the whole application unfocusable/untouchable til开发者_StackOverflow中文版l the thread completes its working?

You should show a ProgressDialog. If you don't do so, the user will think that your app is frozen. You can use the setCancelabel(false) method in order to prevent user from closing the dialog.