iOS学习- 03 控件

1.) UISegmentedControl

2.) UIDatePicker

3.) UISlider

4.)UISwitch

5.)UITextView

UITextField 按return键盘消失 ViewController 实现 UITextFieldDelegate 的textFieldShouldReturn方法   

    //UITextFieldDelegate
    // called when 'return' key pressed. return NO to ignore.
    func textFieldShouldReturn(textField: UITextField) -> Bool {
        textField.resignFirstResponder()
        return true
    }

    //UITextFieldDelegate
    // called when 'return' key pressed. return NO to ignore.
    func textFieldShouldReturn(textField: UITextField) -> Bool {
        textField.resignFirstResponder()
        return true
    }

code: 

//
//  ViewController.swift
//  LoveFinder
//
//  Created by Ricky Choi on 16/5/28.
//  Copyright © 2016年 worm. All rights reserved.
//


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()
        // Do any additional setup after loading the view, typically from a nib.
        name.delegate = self
    }


    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)
        slider.value = Float(i)
        height.text = "\(i)cm"
        //slider.value =
    }


    
    @IBAction func okTapped(sender: AnyObject) {
        let genderText = gender.selectedSegmentIndex == 0 ? "男" : "女"
        
        let gregorian = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)
        let now = NSDate()
        let components = gregorian?.components(NSCalendarUnit.NSYearCalendarUnit, fromDate: birthday.date,toDate: now, options:NSCalendarOptions(rawValue: 0))
        let age = components?.year
        
        let hasPropertyText = hasProperty.on ? "有房" : "无房"
        
        result.text = "\(name.text!), \(age!)岁, \(genderText), 身高\(height.text!), \(hasPropertyText), 求交往!"
    }
    
    //UITextFieldDelegate
    // called when 'return' key pressed. return NO to ignore.
    func textFieldShouldReturn(textField: UITextField) -> Bool {
        textField.resignFirstResponder()
        return true
    }
}