Swift - 多行文本输入框（UITextView）的用法

1，多行文本控件的建立

 

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let textview=UITextView(frame:CGRectMake(10,100,200,100)) textview.layer.borderWidth=1  //边框粗细 textview.layer.borderColor=UIColor.grayColor().CGColor //边框颜色 self.view.addSubview(textview)

 

 

2，是否可编辑

1	textview.editable=false

 

 

3，内容是否可选

1	textview.selectable=false

 

 

4，属性font设置字体，textColor设置字体颜色，textAlignment设置对齐方式 

 

5，给文字中的电话号码和网址自动加连接

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textview.dataDetectorTypes = UIDataDetectorTypes.None //都不加连接 textview.dataDetectorTypes = UIDataDetectorTypes.PhoneNumber //只有电话加连接 textview.dataDetectorTypes = UIDataDetectorTypes.Link //只有网址加连接 textview.dataDetectorTypes = UIDataDetectorTypes.All //电话和网址都加

6，自定义选择内容后的菜单

咱们在看新闻或小说的时候，经常在点选文字后会弹出菜单进行选择，复制等操做。咱们能够在这个菜单上添加一些其余内容，如加上“邮件”“微信”等按钮选项

 

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import UIKit   class ViewController: UIViewController {           override func viewDidLoad() {         super.viewDidLoad()                   let textview=UITextView(frame:CGRectMake(10,100,200,100))         textview.layer.borderWidth=1  //边框粗细         textview.layer.borderColor=UIColor.grayColor().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]     }           func onMail(){         print("mail")     }           func onWeiXin(){         print("weixin")     }           override func didReceiveMemoryWarning() {         super.didReceiveMemoryWarning()     } }