The Touch interface represents a single contact point on a touch-sensitive device. touchcancel - fired when a touch point has been disrupted in an implementation-specific manner (for example, too many touch points are created).touchend - fired when a touch point is removed from the touch surface.touchmove - fired when a touch point is moved along the touch surface.touchstart - fired when a touch point is placed on the touch surface.Touch events consist of three interfaces ( Touch, TouchEvent and TouchList) and the following event types: The application may apply its own semantics to the touch inputs. During this interaction, an application receives touch events during the start, move, and end phases. The interaction ends when the fingers are removed from the surface. Other fingers may subsequently touch the surface and optionally move across the touch surface. A multi-touch interaction starts when a finger (or stylus) first touches the contact surface. The touch events interfaces support application specific single and multi-touch interactions such as a two-finger gesture. A disadvantage to using mouse events is that they do not support concurrent user input, whereas touch events support multiple simultaneous inputs (possibly at different locations on the touch surface), thus enhancing user experiences.
#IPHONE MULTI TOUCH TEST PORTABLE#
However, devices with touch screens (especially portable devices) are mainstream and Web applications can either directly process touch-based input by using Touch Events or the application can use interpreted mouse events for the application input. Today, most Web content is designed for keyboard and mouse input.
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