Method, device, and computer-readable medium for changing size of touch permissible region of touch screen

1. A method of controlling a touch screen of an electronic device, comprising:

switching the touch screen from a normal state into a shrunk state; and

scaling down a content of a touch interactive region of the touch screen to a sub-region of the touch screen and changing an initial center position of the touch interactive region when the touch screen is in the shrunk state,

wherein the touch interactive region is a region within which the touch screen displays an interactive frame, and when the touch screen is in the normal state, the touch interactive region extends beyond the sub-region.

2. The method of claim 1 , wherein the scaling down step comprises:

shrinking the interactive frame from a first size of the touch screen into a size of the sub-region, wherein the first size of the touch screen is larger than the size of the sub-region; and

displaying the shrunk interactive frame within the sub-region.

3. The method of claim 1 , wherein the scaling down step comprises:

providing a plurality of interaction functions of the electronic device through the sub-region.

4. The method of claim 1 , wherein when the touch interactive region of the touch screen is confined to the sub-region, each operation object displayed on the touch screen is reachable by a thumb of a hand determined to be holding the electronic device.

5. The method of claim 1 , wherein a boundary of the sub-region is determined according to a region on the touch screen reachable by a finger of a hand determined to be holding the electronic device.

6. The method of claim 1 , wherein the sub-region for providing a user interaction ability is determined by a touch operation performed by a single hand determined to be holding the electronic device, in which the user interaction ability will not be lesser after switching the touch screen from the normal state into the shrunk state.

7. An electronic device, comprising:

an input unit;

a display unit; and

a processor, coupled to the input unit and the display unit, for switching the display unit from a normal state into a shrunk state, wherein when the display unit is in the shrunk state, the processor scales down a content of an interactive region of the display unit to a sub-region of the display unit and changes an initial center position of the interactive region of the display unit,

wherein the interactive region is a region within which the display unit displays an interactive frame; and when the display unit is in the normal state, the interactive region extends beyond the sub-region.

8. The electronic device of claim 7 , wherein the processor is further configured to:

shrink the interactive frame from a first size of the display unit into a size of the sub-region, wherein the first size of the display unit is larger than the size of the sub-region; and

display the shrunk interactive frame within the sub-region.

9. The electronic device of claim 7 , the processor is further configured to:

provide a plurality of interaction functions of the electronic device through the sub-region.

10. The electronic device of claim 7 , wherein the display unit is a touch screen; and when the interactive region of the display unit is scaled down to the sub-region, each operation object displayed on the display unit is reachable by a thumb of a hand determined to be holding the electronic device.

11. The electronic device of claim 7 , wherein the display unit is a touch screen, a boundary of the sub-region is determined in response to a gesture.

12. The electronic device of claim 11 , wherein the gesture is performed by a finger.

13. The electronic device of claim 7 , wherein the display unit is a touch screen, and the sub-region for providing a user interaction ability is determined by a touch operation performed by a single hand determined to be holding the electronic device, in which the user interaction ability will not be lesser after switching the touch screen from the normal state into the shrunk state.

14. The electronic device of claim 7 , wherein the processor scales down a content of an interactive region of the display unit to a sub-region of the display unit in response to a gesture.

15. The electronic device of claim 7 , wherein the processor, in response to another gesture, restores the content of the interactive region scale downed into the sub-region back to a full-region.

16. A non-transitory computer-readable medium storing a computer program which, when executed by an electronic device comprising a touch screen, causes the electronic device to perform operations comprising:

switching the touch screen from a normal state into a shrunk state; and

scaling down a content of a touch interactive region of the touch screen to a sub-region of the touch screen and changing an initial center position of the touch interactive region of the touch screen when the touch screen is in the shrunk state,

wherein the touch interactive region is a region within which the touch screen displays an interactive frame, and when the touch screen is in the normal state, the touch interactive region extends beyond the sub-region.

17. The non-transitory computer-readable medium of claim 16 , wherein the scaling down operation comprises:

shrinking the interactive frame from a first size of the touch screen into a size of the sub-region, wherein the first size of the touch screen is larger than the size of the sub-region; and

displaying the shrunk interactive frame within the sub-region.

18. The non-transitory computer-readable medium of claim 16 , wherein the scaling down operation comprises:

providing a plurality of interaction functions of the electronic device through the sub-region.

19. The non-transitory computer-readable medium of claim 16 , wherein when the touch interactive region of the touch screen is scaled down to the sub-region, each operation object displayed on the touch screen is reachable by a thumb of a hand determined to be holding the electronic device.

20. The non-transitory computer-readable medium of claim 16 , wherein a boundary of the sub-region is determined according to a region on the touch screen reachable by a finger of a hand determined to be holding the electronic device.

21. The non-transitory computer-readable medium of claim 16 , wherein the sub-region for providing a user interaction ability is determined by a touch operation performed by a single hand determined to be holding the electronic device, in which the user interaction ability will not be lesser after switching the touch screen from the normal state into the shrunk state.