摘要 |
In one embodiment, a method includes determining a first display position for each of a plurality of images and displaying the images at the corresponding first display position, receiving first plurality of taps, associating each of the first plurality of taps with a corresponding image, to produce a first tapping pattern, storing the first tapping pattern, which includes the first plurality of taps and the corresponding images in an associated relationship, determining a second display position for each of the images and displaying the images at the corresponding second display positions, receiving second plurality of taps, associating each of the second plurality of taps with a corresponding image, which are displayed at the second display positions, to produce a second tapping pattern, determining whether the second tapping pattern matches the first tapping pattern, and changing an access state of the electronic device in response to determining a match. |