Portable multifunction device, method, and graphical user interface for interpreting a finger gesture on a touch screen display

摘要

A portable electronic device having a touch screen display detects a first finger-down event at a first position on the touch screen display. The first position is adjacent to first and second user interface objects. The portable device detects a second finger event at a second position on the touch screen display. The second finger event is either a finger-dragging event or a finger-up event. The portable device determines a type of the second finger event and a distance between the first position and the second position. The portable device performs a first action associated with the first user interface object if the distance is greater than a predefined threshold and performs a second action associated with the second user interface object if the distance is equal to or less than the predefined threshold and the second finger event is a finger-up event.