Disable a whole activity from user action

Question

Is there a simple way to disable a user interacting with an activity. To be done when there is an action running (and a spinning progress bar in the title bar)

EDIT:

Answer 1

SpinningProgress in the title bar:

//onCreate(): 
activity.requestWindowFeature(FEATURE_INDETERMINATE_PROGRESS);

//and then: 
activity.setProgressBarIndeterminate(boolean indeterminate)

both in Activity class

Another option is using Progress Dialog (you might want to set cancelable to false on it).