Preventing unintentional activation and/or input in an electronic device

摘要

A system and method for preventing unintentional activation and/or input in an electronic device are provided. A movable on-screen user interface object is provided as an unlocking mechanism in a device having a touch-sensitive surface. The user moves the object in any desired direction from a starting point (or origin); if the object is moved a sufficient distance away from the starting point, the device is unlocked. The required amount of movement may be defined by a threshold which may or may not be made visible to the user. In various embodiments, the threshold may be defined by an arc, a circle, or by a straight line, or in some other arbitrary manner. In various embodiments, user authentication can be required before unlocking takes effect. In various embodiments, certain alerts can be displayed while the device is locked.