Unlocking a device by performing gestures on an unlock image

A portable electronic device, comprising:

• a touch sensitive display;
• memory;
• one or more processors;
• one or more programs stored in the memory and configured for execution by the one or more processors, the one or more programs including instructions for:
• detecting a contact with the touch-sensitive display on an unlock image displayed at a first location on the touch-sensitive display, wherein the unlock image is a graphical, interactive user-interface object with which a user interacts in order to unlock the device;
• continuously moving the unlock image on the touch-sensitive display in accordance with movement of the detected contact while continuous contact with the touch-sensitive display is maintained;
• if moving the unlock image on the touch-sensitive display results in movement of the unlock image from the first location to an unlock region on the touch-sensitive display:
• unlocking the portable electronic device and
• ceasing to display the unlock image;
• and
• if moving the unlock image on the touch-sensitive display does not result in movement of the unlock image from the first location to an unlock region on the touch-sensitive display:
• maintaining the device in a locked state;
• and
• maintaining display of the unlock image.

A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device with a touch-sensitive display, cause the device to:

• detect a contact with the touch-sensitive display on an unlock image displayed at a first location on the touch-sensitive display, wherein the unlock image is a graphical, interactive user-interface object with which a user interacts in order to unlock the device;
• continuously move the unlock image on the touch-sensitive display in accordance with movement of the detected contact while continuous contact with the touch-sensitive display is maintained;
• if moving the unlock image on the touch-sensitive display results in movement of the unlock image from the first location to an unlock region on the touch-sensitive display:
• unlock the portable electronic device and
• cease to display the unlock image;
• and
• if moving the unlock image on the touch-sensitive display does not result in movement of the unlock image from the first location to an unlock region on the touch-sensitive display:
• maintain the device in a locked state;
• and
• maintain display of the unlock image.

A graphical user interface on a portable electronic device with a touch sensitive display, a memory, and one or more processors to execute one or more programs stored in the memory, the graphical user interface comprising:

• an unlock image displayed on the touch-sensitive display while the device is in a user-interface lock state;
• wherein:
• a contact with the touch-sensitive display is detected on the unlock image displayed at a first location on the touch-sensitive display, wherein the unlock image is a graphical, interactive user-interface object with which a user interacts in order to unlock the device;
• the unlock image is continuously moved on the touch-sensitive display in accordance with movement of the detected contact while continuous contact with the touch-sensitive display is maintained;
• if moving the unlock image on the touch-sensitive display results in movement of the unlock image from the first location to an unlock region on the touch-sensitive display:
• the portable electronic device is unlocked and
• display of the unlock image is ceased;
• and
• if moving the unlock image on the touch-sensitive display does not result in movement of the unlock image from the first location to an unlock region on the touch-sensitive display:
• the device is maintained in a locked state;
• and
• display of the unlock image is maintained.