目錄:[Swift]Xcode實際操做html
本文將演示標籤控件的換行功能,swift
在項目導航區,打開視圖控制器的代碼文件【ViewController.swift】app
1 import UIKit 2 3 class ViewController: UIViewController { 4 5 override func viewDidLoad() { 6 super.viewDidLoad() 7 // Do any additional setup after loading the view, typically from a nib. 8 //建立一個位置在(10,100),尺寸爲(300,150)的顯示區域 9 let rect = CGRect(x: 10, y: 100, width: 300, height: 150) 10 //設置標籤對象的顯示區域 11 let label = UILabel(frame: rect) 12 //而後給標籤對象,設置一段較長的文本內容 13 label.text = "Love you、think of you.love you secretly,love you eagerly,wait ,feel disappointed,try hard,lose,and feel sad,go apart,and recall.these are for sake of you.And I will regret for it." 14 15 //設置標籤的背景顏色爲橙色 16 label.backgroundColor = UIColor.orange 17 //設置標籤文字的顏色爲紫色 18 label.textColor = UIColor.purple 19 //設置標籤文字的對齊方式爲居中對齊 20 label.textAlignment = NSTextAlignment.center 21 22 //設置標籤文字的換行方式爲: 23 //以空格爲界,並保留整個單詞(即在換行處不會切割單詞) 24 label.lineBreakMode = NSLineBreakMode.byWordWrapping 25 //設置標籤對象不限制行數 26 label.numberOfLines = 0 27 28 //將標籤對象,添加到當前視圖控制器的根視圖 29 self.view.addSubview(label) 30 } 31 32 override func didReceiveMemoryWarning() { 33 super.didReceiveMemoryWarning() 34 // Dispose of any resources that can be recreated. 35 } 36 }