Systems and Methods for Character Input on a Mobile Device

摘要

Methods and systems for selecting input in a portable electronic device comprising a display and a plurality of input members are disclosed. The methods and systems use a combination of two input apparatuses to select input for the device. For example, the method includes detecting an actuation of one of the input members of the electronic device immediately followed by an action performed on an input device, such as a tap of a trackpad or a click of a trackball. The method also includes determining the representations associated with the actuated input member and outputting at least one of the representations using the display, with one representation selectable and marked for selection. The method optionally further includes detecting another action on the input device and in response changing the representation marked for selection. The method further includes detecting a release of the actuated input member and outputting the representation marked for selection using the display.