index.uts

import { Button } from "android.widget"

export class NativeButton {
	$element : UniNativeViewElement;

	constructor(element : UniNativeViewElement) {
		this.$element = element;
		this.bindView();
	}

	button : Button | null = null;
	bindView() {
    //通过UniElement.getAndroidActivity()获取android平台activity 用于创建view的上下文
		this.button = new Button(this.$element.getAndroidActivity()!);  //构建原生view
    //限制原生Button 文案描述不自动大写
    this.button?.setAllCaps(false)
    //监听原生Button点击事件
    this.button?.setOnClickListener(_ => {
    	const detail = {}
      //构建自定义UniNativeViewEvent返回对象
    	const event = new UniNativeViewEvent("customClick", detail)
      //响应分发原生Button的点击事件
    	this.$element.dispatchEvent(event)
    })
    //UniNativeViewEvent 绑定 安卓原生view
		this.$element.bindAndroidView(button!);
	}

	updateText(text: string) {
    //更新原生Button 文案描述
		this.button?.setText(text)
	}

}