角度-是否有HostListener事件列表? [英] Angular - Is there list of HostListener-Events?

问题描述

我在指令中使用hostlistener来检测模糊"事件和"keyup"事件. 现在，我需要检测指令所在的input-element的更改.我尝试过

I am using a hostlistener in a directive to detect "blur"- and "keyup"-events. Now I need to detect changes in the input-element the directive sits on. I tried

@HostListener('change', ['$event'])

但不会触发.

是否存在更改"事件?我还读过，应该有一个输入"事件，但这也不会触发.

Is there a "change"-event? I have also read, that there should be an "input"-event, but that does not fire either.

所以，我的问题是: 有可用的可用事件列表吗?

So, my question is: Is there a list of available events that I can use?

我已经搜索过Google:

I have searched google:

https://www.google.de/search?q = angular + 2 + list + of + hostlistener + events

和角度文档:

https://angular.io/api/core/HostListener

但没有找到任何东西.

推荐答案

打开角度dom元素架构

Open angular dom element schema https://github.com/angular/angular/blob/master/packages/compiler/src/schema/dom_element_schema_registry.ts#L78

其中:

• (无前缀):属性是一个字符串.
• *:属性表示一个事件.
• !:属性是一个布尔值.
• #:属性是数字.
• %:属性是一个对象.

• (no prefix): property is a string.
• *: property represents an event.
• !: property is a boolean.
• #: property is a number.
• %: property is an object.

然后按ctrl+F并输入*

@HostListener(还有(customEvent)="handler()")也可以收听自定义事件

@HostListener(and also (customEvent)="handler()") can also listen to custom events

示例

Example

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