#__AddEvent

#Introduction

Adds an Event Listener to the Element object.

#Syntax

__AddEvent(element: Element, type: string, name: string, listener: string|Function) : void;

#Parameters

• When the listener is a case-sensitive string, upon triggering the listened event, the Lynx SDK will send the current Element's parentComponentUniqueID, listener, and event to the background thread.
• When the listener is null or undefined, the Lynx SDK will remove the corresponding listener for the specified type and name from the Element object.

#Return Value

No return value.

#Example

The frontend framework can generate render directives in the following way.

<view src="xxx" bindtap="onTap" />

// main-thread.js
let element = __CreateElement('view', 0, {});
__SetAttribute(element, 'src', 'xx');
__AddEvent(element, 'bindEvent', 'tap', 'onTap');