import UIKit

 class ViewController: UIViewController ,UITextFieldDelegate{

     @IBOutlet weak var name: UITextField!

     @IBOutlet weak var gender: UISegmentedControl!

     @IBOutlet weak var birthday: UIDatePicker!

     @IBOutlet weak var heightNumber: UISlider!

     @IBOutlet weak var height: UILabel!

     @IBOutlet weak var hasProperty: UISwitch!

     @IBOutlet weak var result: UITextView!

     override func viewDidLoad() {

         super.viewDidLoad()

         name.delegate = self//点击return退出键盘

     }

     override func didReceiveMemoryWarning() {

         super.didReceiveMemoryWarning()

         // Dispose of any resources that can be recreated.

     }

     @IBAction func heightChanged(sender: AnyObject) {

         var slider = sender as! UISlider

         var i = Int(slider.value)   //Float转换为Int

         slider.value = Float(i)     //转换操作

         height.text = "\(i)厘米"    //随着滑块改变label的值

     }

     @IBAction func okTapped(sender: AnyObject) {

         let genderText = gender.selectedSegmentIndex==0 ? "高富帅" : "白富美"

         let gregorian = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)

         let now = NSDate()

         birthday.maximumDate = NSDate()//防止年龄为负数

         let components = gregorian?.components(NSCalendarUnit.CalendarUnitYear, fromDate: birthday.date, toDate: now, options: NSCalendarOptions(0))//计算年龄

         let age = components!.year//得到年龄

         let hasPropertyText = hasProperty.on ? "有房":"没房"  //switch值的数据

         result.text = "\(name.text),\(age)岁,\(genderText),身高\(height.text!),\(hasPropertyText),求交往!"

     }

     //UITextFiledDelegate,点击return使键盘退出

     func textFieldShouldReturn(textField: UITextField) -> Bool{

         textField.resignFirstResponder()

         return true

     }

 }