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SYS_Window.addEventListener() method

This API is provided as a beta preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.

新增事件监听

Signature

addEventListener(type: ESYS_WindowEventType, listener: (ev: any) => any, options?: {
        capture?: boolean;
        once?: boolean;
        passive?: boolean;
        signal?: AbortSignal;
    }): ISYS_WindowEventListenerRemovableObject | undefined;

Parameters

Parameter	Type	Description
type	ESYS_WindowEventType	事件类型，当前支持 blur focus
listener	(ev: any) => any	事件监听回调
options	{ capture?: boolean; once?: boolean; passive?: boolean; signal?: AbortSignal; }	(Optional) 可选参数

Returns

ISYS_WindowEventListenerRemovableObject | undefined

事件监听方法，用于移除事件监听，如若为 undefined 则表示创建事件监听失败