| 摘要 |
Method of controlling an electronic device with a touch-sensitive display is provided. While the electronic device is in a user-interface lock state, an unlock image is displayed and contact with the unlock image on the touch-sensitive display is detected. In response to a detected contact on the unlock image, a circle with a predefined radius is displayed, and at least one functional icon is displayed on the boundary of the circle, wherein the unlock image serves as a center of the circle. The unlock image is displayed with an unchanged position while the detected contact is moving toward the functional icon. When the detected contact is moving toward the functional icon, a circular trapezoid is displayed and expands from an arc where the functional icon is placed, towards the outside of the circle. When the detected contact moves to and stops at the functional icon, the electronic device transitions from the user-interface lock state to a processing state, and a function corresponding to the functional icon is executed.
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