1. 效果圖
2. 代碼截圖
3. 代碼
let alertController = UIAlertController(title: "", message: "考勤地點：上海市徐匯區桂平路391號有效范圍：300米", preferredStyle: UIAlertControllerStyle.alert)
let subView1:UIView = alertController.view.subviews[0]
let subView2 = subView1.subviews[0];
let subView3 = subView2.subviews[0];
let subView4 = subView3.subviews[0];
let subView5 = subView4.subviews[0];
//取title和message：
let title:UILabel = subView5.subviews[0] as! UILabel
let message:UILabel = subView5.subviews[1] as! UILabel
message.textAlignment = NSTextAlignment.left
title.textAlignment = NSTextAlignment.left
let cancelAction = UIAlertAction(title: "我知道了", style: UIAlertActionStyle.cancel, handler: nil)
alertController.addAction(cancelAction)
self.present(alertController, animated: true, completion: nil)
