com.facebook.react.uimanager.events

Class TouchEvent

java.lang.Object

com.facebook.react.uimanager.events.Event<TouchEvent>

com.facebook.react.uimanager.events.TouchEvent

public class TouchEvent
extends Event<TouchEvent>

An event representing the start, end or movement of a touch. Corresponds to a single MotionEvent. TouchEvent coalescing can happen for move events if two move events have the same target view and coalescing key. See TouchEventCoalescingKeyHelper for more information about how these coalescing keys are determined.

Constructor Summary

Constructors

Constructor and Description
TouchEvent(int viewTag, TouchEventType touchEventType, android.view.MotionEvent motionEventToCopy)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canCoalesce()
void	dispatch(RCTEventEmitter rctEventEmitter) Dispatch this event to JS using the given event emitter.
void	dispose() Called when the EventDispatcher is done with an event, either because it was dispatched or because it was coalesced with another Event.
short	getCoalescingKey()
java.lang.String	getEventName()

Methods inherited from class com.facebook.react.uimanager.events.Event

coalesce, getTimestampMs, getViewTag

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TouchEvent

public TouchEvent(int viewTag,
          TouchEventType touchEventType,
          android.view.MotionEvent motionEventToCopy)

Method Detail

getEventName

public java.lang.String getEventName()

Specified by:

getEventName in class Event<TouchEvent>

Returns:

the name of this event as registered in JS

canCoalesce

public boolean canCoalesce()

Overrides:

canCoalesce in class Event<TouchEvent>

Returns:

false if this Event can *never* be coalesced

getCoalescingKey

public short getCoalescingKey()

Overrides:

getCoalescingKey in class Event<TouchEvent>

Returns:

a key used to determine which other events of this type this event can be coalesced with. For example, touch move events should only be coalesced within a single gesture so a coalescing key there would be the unique gesture id.

dispatch

public void dispatch(RCTEventEmitter rctEventEmitter)

Description copied from class: Event

Dispatch this event to JS using the given event emitter.

Specified by:

dispatch in class Event<TouchEvent>

dispose

public void dispose()

Description copied from class: Event

Called when the EventDispatcher is done with an event, either because it was dispatched or because it was coalesced with another Event.

Overrides:

dispose in class Event<TouchEvent>