Both touch screens and hybrid devices are supported by Symbian -platform. Touch screen enables direct manipulation of content and -objects, allowing for far more natural interaction with the device. -This means a completely different user experience and interaction -style compared to using a hardware keypad.
-All applications must be touch-enabled, which means that they can -be used with the touch screen alone, regardless of the presence of -a keypad. In Symbian platform-based touch devices, the important hardware -keys are Send, End, Multi-tasking and Power key.
-The application features must follow the platform support for different -hardware. When designing a touch-enabled Symbian application, the -UI must be designed so that everything can be accomplished by using -the touch screen interface, as the potential target devices may or -may not have a hardware keyboard.
-The touch UI in the Symbian platform is based on the use of resistive
-and capacitive touch screens. In resistive touch screen technology,
-two conductive and resistive layers are separated by a thin space.
-When an object touches this kind of touch panel, the layers are connected
-at a certain point, and a touch event is registered. This allows efficient
-stylus control, in addition to finger touch - unlike capacitive panels,
-which usually register only finger touch. Additionally, resistive
-touch screen offers a higher resolution and more durability. In capacitive touch screen technology, the panel consists of an
-insulator such as glass, coated with a transparent conductor (such
-as indium tin oxide (ITO)). When an object touches the surface of
-the screen, it results in a distortion of the local electrostatic
-field, measurable as a change in capacitance. Then a touch controller
-measures the frequency variations to ascertain the co-ordinates of
-the object's touch. Capacitive touch screen supports
The hardware is supported by various:
-touch-specific components (see
component and UI behavior changes
layout changes, and
additions to the interaction style.
The touch UI is designed to enable full task flow with touch, with -minimal need to switch to hardware keys. Thus, the design ensures -that users can complete a task with the chosen interaction method -from start to finish.
-While designing and implementing applications for touch screen -devices based on the Symbian platform, consider interactions that -benefit the most from the touch UI.
-If you can apply direct manipulation of the UI, for example when -moving items from one place to another, or scrolling a page, do not -confine the user with unnecessary scrollbars or have the user resort -to options list commands.
-Instead, enable the user to view pages larger than a screen by -panning them directly, and dragging and dropping items rather than -marking them and using menu options.
-Remember that the most intuitive touch screen interactions -that can be performed using a finger are tapping, stroking up/down/left/right, -and the long tap.
Utilize strokes that are easily discovered to the users in -the given context. It should be explicit to the user where strokes -can be performed.
Design to ensure that users can complete a task with the same -interaction method from start to finish - touch or hardware keys, -stylus, or finger, and using one hand or both hands.
Aim to optimize system performance and battery consumption -to provide a fluid and reliable touch user experience.
See Also:
-Both touch screens and hybrid devices are supported by Symbian +platform. Touch screen enables direct manipulation of content and +objects, allowing for far more natural interaction with the device. +This means a completely different user experience and interaction +style compared to using a hardware keypad.
+All applications must be touch-enabled, which means that they can +be used with the touch screen alone, regardless of the presence of +a keypad. In Symbian platform-based touch devices, the important hardware +keys are Send, End, Multi-tasking and Power key.
+The application features must follow the platform support for different +hardware. When designing a touch-enabled Symbian application, the +UI must be designed so that everything can be accomplished by using +the touch screen interface, as the potential target devices may or +may not have a hardware keyboard.
+The touch UI in the Symbian platform is based on the use of resistive
+and capacitive touch screens. In resistive touch screen technology,
+two conductive and resistive layers are separated by a thin space.
+When an object touches this kind of touch panel, the layers are connected
+at a certain point, and a touch event is registered. This allows efficient
+stylus control, in addition to finger touch - unlike capacitive panels,
+which usually register only finger touch. Additionally, resistive
+touch screen offers a higher resolution and more durability. In capacitive touch screen technology, the panel consists of an
+insulator such as glass, coated with a transparent conductor (such
+as indium tin oxide (ITO)). When an object touches the surface of
+the screen, it results in a distortion of the local electrostatic
+field, measurable as a change in capacitance. Then a touch controller
+measures the frequency variations to ascertain the co-ordinates of
+the object's touch. Capacitive touch screen supports
The hardware is supported by various:
+touch-specific components (see
component and UI behavior changes
layout changes, and
additions to the interaction style.
The touch UI is designed to enable full task flow with touch, with +minimal need to switch to hardware keys. Thus, the design ensures +that users can complete a task with the chosen interaction method +from start to finish.
+While designing and implementing applications for touch screen +devices based on the Symbian platform, consider interactions that +benefit the most from the touch UI.
+If you can apply direct manipulation of the UI, for example when +moving items from one place to another, or scrolling a page, do not +confine the user with unnecessary scrollbars or have the user resort +to options list commands.
+Instead, enable the user to view pages larger than a screen by +panning them directly, and dragging and dropping items rather than +marking them and using menu options.
+Remember that the most intuitive touch screen interactions +that can be performed using a finger are tapping, stroking up/down/left/right, +and the long tap.
Utilize strokes that are easily discovered to the users in +the given context. It should be explicit to the user where strokes +can be performed.
Design to ensure that users can complete a task with the same +interaction method from start to finish - touch or hardware keys, +stylus, or finger, and using one hand or both hands.
Aim to optimize system performance and battery consumption +to provide a fluid and reliable touch user experience.
See Also:
+