Swift - 多行文本输入框（UITextView）的用法

let textview = UITextView(frame:CGRect(x:10, y:100, width:200, height:100))
textview.layer.borderWidth = 1  //边框粗细
textview.layer.borderColor = UIColor.gray.cgColor //边框颜色
self.view.addSubview(textview)

textview.isEditable = false

textview.isSelectable = false

textview.dataDetectorTypes = [] //都不加链接
textview.dataDetectorTypes = UIDataDetectorTypes.phoneNumber //只有电话加链接
textview.dataDetectorTypes = UIDataDetectorTypes.link //只有网址加链接
textview.dataDetectorTypes = UIDataDetectorTypes.all //电话和网址都加

import UIKit

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let textview = UITextView(frame:CGRect(x:10, y:100, width:200, height:100))
        textview.layer.borderWidth = 1  //边框粗细
        textview.layer.borderColor = UIColor.gray.cgColor //边框颜色
        self.view.addSubview(textview)
        
        let mail = UIMenuItem(title: "邮件", action: #selector(ViewController.onMail))
        let weixin = UIMenuItem(title: "微信", action: #selector(ViewController.onWeiXin))
        let menu = UIMenuController()
        menu.menuItems = [mail,weixin]
    }
    
    @objc func onMail(){
        print("mail")
    }
    
    @objc func onWeiXin(){
        print("weixin")
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
}