| 摘要 |
A method of controlling a user interface of a portable communication apparatus ( 100 ) is disclosed. The user interface includes a display ( 240, 336 ) with a limited presentation area ( 352 ) and a manual input device ( 250, 338 ) with a rotary element ( 252 ). Graphical data to be presented is received and represents a required presentation area ( 500 ) larger than said limited presentation area. A first sub area ( 510 ) of said required presentation area is presented on said display. A first user input is accepted through said manual input device as a rotator rotary movement of said rotary element, indicating a desired navigation direction within said required presentation area. A second user input is accepted through said manual input device as a rotary movement of said rotary element, indicating a desired navigation distance within said required presentation area in said desired navigation direction. The second sub area ( 510''' ) of said required presentation area is presented on said display, wherein the angular and vectorial displacement, respectively, of said second sub area with respect to said first sub area is determined by said first and second user input, respectively. |
