UIStepper swift

//
// ViewController.swift
// UILabelTest
//
// Created by mac on 15/6/23.
// Copyright (c) 2015年 fangyuhao. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

var stepper:UIStepper!
var label:UILabel!

override func viewDidLoad() {
    super.viewDidLoad()
    stepper = UIStepper()
    stepper.center = self.view.center
    //设置stepper的范围与初始值
    stepper.maximumValue = 10
    stepper.minimumValue = 1
    stepper.value = 5.5
    //设置每次增减的值
    stepper.stepValue = 0.5
    //设置stepper可以按住不放来连续更改值
    stepper.continuous = true
    //设置stepper是否循环
    stepper.wraps = true
    stepper.addTarget(self, action: "stepperValueIschanged", forControlEvents: UIControlEvents.ValueChanged)
    self.view.addSubview(stepper)
    label = UILabel(frame: CGRectMake(100, 190, 300, 30))
    label.text = "当前值为：\(stepper.value)"
    self.view.addSubview(label)

    // Do any additional setup after loading the view, typically from a nib.
}
func stepperValueIschanged(){
    label.text = "当前值为：\(stepper.value)"
}

}