建一个ts文件，js文件不行，复制下面的代码，在场景中给button绑定事件

// Learn TypeScript:

// - https://docs.cocos.com/creator/manual/en/scripting/typescript.html

// Learn Attribute:

// - https://docs.cocos.com/creator/manual/en/scripting/reference/attributes.html

// Learn life-cycle callbacks:

// - https://docs.cocos.com/creator/manual/en/scripting/life-cycle-callbacks.html

const {ccclass, property} = cc._decorator;

@ccclass

export default class CopyText extends cc.Component {

@property(cc.Label)

_textDisplayArea: cc.Label = null;

start () {

this._textDisplayArea = cc.find("Canvas/文字展示区/ScrollView/view/content/item").getComponent(cc.Label);

}

//拷贝文本

CopyTextEvent () {

let input = this._textDisplayArea.string;

const el = document.createElement('textarea');

el.value = input;

// Prevent keyboard from showing on mobile

el.setAttribute('readonly', '');

el.style.contain = 'strict';

el.style.position = 'absolute';

el.style.left = '-9999px';

el.style.fontSize = '12pt'; // Prevent zooming on iOS

const selection = getSelection();

let originalRange;

if (selection.rangeCount > 0) {

originalRange = selection.getRangeAt(0);

}

document.body.appendChild(el);

el.select();

// Explicit selection workaround for iOS

el.selectionStart = 0;

el.selectionEnd = input.length;

let success = false;

try {

success = document.execCommand('copy');

} catch (err) {}

document.body.removeChild(el);

if (originalRange) {

selection.removeAllRanges();

selection.addRange(originalRange);

}

console.log("拷贝文本");

}

}

标签：复制到,el,Cocos,selection,Creator,cc,style,originalRange,document

来源： https://www.cnblogs.com/Jason-c/p/12891340.html