PORTABLE ELECTRONIC DEVICE AND METHOD OF CONTROLLING SAME

摘要

A method of controlling a portable electronic device that has a touch screen display includes providing a graphical user interface including an area defined by a boundary, detecting a touch event at a touch location within the area defined by the boundary on the touch screen display, determining if the touch location has moved to a new location outside of the area defined by the boundary; and performing an action in response to detecting the touch event at the touch location within the area defined by the boundary and determining that the touch location has moved from the area defined by the boundary to the new location outside of the area defined by the boundary.