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)"

}

}

巴特西

UIStepper swift

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