Abstract: The invention is directed to a method for operating a portable device. The portable device comprises a touch screen displaying a plurality of objects. The method comprises steps of receiving a touch signal through a contacted location on the touch screen to select one of the objects corresponding to the contacted location, wherein the touch signal is correspondent with a continued pressing motion and a dragging motion following the continued pressing motion on the touch screen. According to the continued pressing motion, at least a button corresponding to an operating function is displayed on the touch screen. When the dragging motion is towards to the button corresponding to the operating function, the operating function is executed on the selected object.

Abstract: The invention is directed to a method for operating a portable device. The portable device comprises a touch screen displaying a plurality of objects. The method comprises steps of receiving a touch signal through a contacted location on the touch screen to select one of the objects corresponding to the contacted location, wherein the touch signal is correspondent with a continued pressing motion and a dragging motion following the continued pressing motion on the touch screen. According to the continued pressing motion, at least a button corresponding to an operating function is displayed on the touch screen. When the dragging motion is towards to the button corresponding to the operating function, the operating function is executed on the selected object.

Abstract: Methods and systems for interface management are provided. First, at least one interface is provided and displayed on a screen of the electronic device. The interface is a page or a menu. A plurality of candidate tilt interface images corresponding to the interface are provided, wherein the respective candidate tilt interface images correspond to the interface which is to be rotated at various angles. Then, a signal including a movement of an object continuously detected on the screen is received. In response to the signal, one of the candidate tilt interface images is selected as a specific tilt interface image according to a distance corresponding to the movement of the object on the screen, and the specific tilt interface image is displayed on the screen.

Abstract: Methods and systems for interface management are provided. First, a plurality of interfaces arranged in sequence is provided. The interfaces are placed in a circle across a 3D space to form a 3D object, and the interfaces include pages or menus. Then, a signal is received, and in response to the signal, the position of the 3D object viewed on a screen of the electronic device are adjusted, wherein the 3D object is located at a virtual distance behind and away from the screen, and the virtual distance are gradually varied.