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TOUCH INTERACTION
Action
Symbol
Descriptions
Tap
A Tap is a gesture, touch that lasts for up to 500ms that
requires the user to briefly contact the screen in one location.
It is used to engage in a function. If a user taps on an inactive
area of the screen there shall be no resulting action.
Note:
when an option exists to launch an action with a Drag
or with a Tap gesture, a Tap is preferred
Touch
and
Hold
A Touch & Hold gesture, i.e. a touch that lasts for 500ms or
longer, is generally used to display an enhanced view, to dis-
play additional information or to perform a specific action. It
is similar to the Tap with the difference that the user touches
the screen leaving the finger motionless until the information
is displayed or the action occurs. It is the duration of the touch
that triggers a different event from Tap.
If an object is not Touch & Hold-enabled there shall be no
resulting action. The same object shall not support both Touch
& Hold and Drag gestures
Dragging
A Drag is a gesture that requires the user to touch, hold and
move the finger without losing contact with the screen,
thereby establishing a path of contact with the screen. The
object touched moves in direct response to the motion of
the finger.
To prevent any action from being performed, the finger is
dragged outside of the screen or into an inactive area and the
action is cancelled.
If an object is not Drag-enabled, there shall be no resulting
action. The same object shall not support both Touch & Hold
and Drag gestures.
Note:
when an option exists to launch an action with a Drag
or with a Tap gesture, a Tap is preferred.
Action
Symbol
Descriptions
Flicking
A Flick is a unidirectional gesture that requires the user to
contact the screen in a quick flicking motion. The screen
scrolls in direct response to the flick of the finger in the same
direction, with the speed of motion at release determining
the speed of screen movement. The screen movement shall
continue at constant speed or decelerate over time until the
user touches the screen to stop it.
If an object is not Flick-enabled, there shall be no resulting
action.
Drag and
Drop
A Drag & Drop gesture.
It is used to engage in a function that File is Selected & Moved
Free
Draw
Free Draw Gesture.
It is used to engage in a function that User Selected the
Touch area
Circle
Draw
A circle Draw gesture for inside
It is used to engage in a function that User Draw the circle
inside on Screen
A circle Draw gesture for outside
It is used to engage in a function that User Draw the circle
outside on Screen
•BEFORE USING
