Swift 学习笔记(三)

import UIKit

class ViewController: UIViewController {

	@IBOutlet weak var txtName: UITextField!//文本框
	@IBOutlet weak var tryBt: UIButton!//try 按钮
	
	@IBAction func touchBt(_ sender: Any) {
		/*UIAlertView 在iOS9之后不推荐使用
		let alertView = UIAlertView()
		alertView.title = "提示标题"
		alertView.message = "提示信息 输入框: \(txtName.text!)"
		alertView.addButton(withTitle: "好的")
		alertView.show()
		*/
		
		let alertView = UIAlertController.init(title: "提示标题", message: "提示信息 输入框: \(txtName.text!)", preferredStyle: .alert)
		let okButton = UIAlertAction(title: "好的", style: .default, handler: {
			ACTION in
			print("点击了 好的 按钮")
		})
		let cancelButton = UIAlertAction(title: "取消", style: .default, handler: nil)
		alertView.addAction(okButton)
		alertView.addAction(cancelButton)
		self.present(alertView, animated: true, completion: nil)
	}
	
	@IBOutlet weak var try22: UIButton!//try2 按钮
	@IBAction func try2(_ sender: Any) {
		let alert = UIAlertController(title: "标题", message: "内容", preferredStyle: .alert)
		let action = UIAlertAction(title: "标题2", style: .default){
			(UIAlertAction) in
			print("6666666")
		}
		alert.addAction(action)
		present(alert, animated: true, completion: nil)
	}
	
	
	override func viewDidLoad() {
		super.viewDidLoad()
		// Do any additional setup after loading the view, typically from a nib.
	}
}

参考资料 : http://www.hangge.com/blog/cache/detail_651.html 参考资料 : https://medium.com/@jacobhuang/swift-建立警告視窗-uialertcontroller-uialertaction-18c80a001649