Methods and devices to allow common user interface mode based on orientation

1. A method of allowing a common user interface mode on a first electronic device and a second electronic device, the method comprising:

receiving first orientation data from an orientation sensor associated with the first electronic device;

receiving, at the first electronic device, second orientation data from the second electronic device;

determining, based on the first orientation data and the second orientation data, if the first electronic device and the second electronic device are resting on a common docking accessory and have a common orientation relative to the docking accessory,

wherein the first orientation data and second orientation data comprises angular orientation and wherein the docking accessory receives the first electronic device and the second electronic device in a predetermined angular orientation; and

in response to determining that the first electronic device and the second electronic device are resting on a common docking accessory and have a common orientation relative to the docking accessory, allowing the first electronic device and the second electronic device to automatically enter a common user interface mode, wherein determining if the first electronic device and the second electronic device have a common orientation relative to the docking accessory comprises determining if the first electronic device and the second electronic device are both oriented in fixed orientation relative to the docking accessory that satisfies the predetermined angular orientation.

2. The method of claim 1 , wherein determining if the first electronic device and the second electronic device have a common orientation relative to the docking accessory comprises:

determining if a relative angle between the first electronic device and the second electronic device satisfies a predetermined orientation criterion.

3. The method of claim 1 , wherein allowing the first electronic device and the second electronic device to enter a common user interface mode comprises:

commencing to monitor for predetermined input authorizing the first electronic device and the second electronic device to enter a common user interface mode; and

in response to receiving the predetermined input authorizing the first electronic device and the second electronic device to enter a common user interface mode, entering the common user interface mode on the first electronic device and the second electronic device.

4. The method of claim 3 , wherein the predetermined input comprises a synchronous input received at both the first electronic device and the second electronic device.

5. The method of claim 3 , wherein the predetermined input comprises a bumping gesture in which the first electronic device and the second electronic device are bumped together.

6. The method of claim 3 , wherein the predetermined input comprises a swiping gesture across touchscreen displays associated with the first electronic device and the second electronic device.

7. The method of claim 3 , wherein the predetermined input comprises selection of a predetermined interface element on both the first electronic device and the second electronic device.

8. The method of claim 1 , wherein the common user interface mode comprises an extended desktop mode in which a user interface generated by one of one of the first electronic device or the second electronic device is spanned to include the displays of both the first electronic device and the second electronic device.

9. The method of claim 1 , wherein, in the common user interface mode, one of the first electronic device or the second electronic device acts as a primary device to control the display of the other of the first electronic device or the second electronic device.

10. The method of claim 1 , wherein at least one of the first electronic device or the second electronic device is a smartphone.

11. The method of claim 1 , wherein at least one of the first electronic device or the second electronic device is a tablet device.

12. The method of claim 1 , further comprising, after allowing the first electronic device and the second electronic device to enter a common user interface mode:

determining, from first orientation data and received second orientation data, if the orientation of the first electronic device and the second electronic device satisfy a first predetermined orientation criterion; and

if the orientation of the first electronic device and the second electronic device satisfy the first predetermined orientation criterion, exiting the common user interface mode.

13. A first electronic device comprising:

an orientation sensor;

a communication subsystem for establishing wireless communications with a second electronic device;

a display;

a processor, the processor being configured to:

receive first orientation data from the orientation sensor associated with the first electronic device;

receive, at the first electronic device, second orientation data from the second electronic device;

determine, based on the first orientation data and the second orientation data, if the first electronic device and the second electronic device are resting on a common docking accessory and have a common orientation relative to the docking accessory,

wherein the first orientation data and second orientation data comprises angular orientation and wherein the docking accessory receives the first electronic device and the second electronic device in a predetermined angular orientation; and

in response to determining that the first electronic device and the second electronic device are resting on a common docking accessory and have a common orientation relative to the docking accessory, allow the first electronic device and the second electronic device to automatically enter a common user interface mode, wherein determining if the first electronic device and the second electronic device have a common orientation relative to the docking accessory comprises determining if the first electronic device and the second electronic device are both oriented in fixed orientation relative to the docking accessory that satisfies the predetermined angular orientation.