Swift - 多行文本輸入框（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  //邊框粗細 textview.layer.borderColor=UIColor.grayColor().CGColor //邊框顏色 self.view.addSubview(textview)

 

 

2，是否可編輯

1	textview.editable=false

 

 

3，內容是否可選

1	textview.selectable=false

 

 

4，屬性font設置字體，textColor設置字體顏色，textAlignment設置對齊方式 

 

5，給文字中的電話號碼和網址自動加連接

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textview.dataDetectorTypes = UIDataDetectorTypes.None //都不加連接 textview.dataDetectorTypes = UIDataDetectorTypes.PhoneNumber //只有電話加連接 textview.dataDetectorTypes = UIDataDetectorTypes.Link //只有網址加連接 textview.dataDetectorTypes = UIDataDetectorTypes.All //電話和網址都加

6，自定義選擇內容後的菜單

咱們在看新聞或小說的時候，經常在點選文字後會彈出菜單進行選擇，複製等操做。咱們能夠在這個菜單上添加一些其餘內容，如加上「郵件」「微信」等按鈕選項

 

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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  //邊框粗細         textview.layer.borderColor=UIColor.grayColor().CGColor //邊框顏色         self.view.addSubview(textview)                   let mail = UIMenuItem(title: "郵件", 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()     } }