ios swift 实现饼状图进度条,swift环形进度条

ios swift 实现饼状图进度条

ios swift 实现饼状图进度条,swift环形进度条

//
// ProgressControl.swift
// L02MyProgressControl
//
// Created by plter on 7/29/14.
// Copyright (c) 2014 jikexueyuan. All rights reserved.
// import UIKit class ProgressControl: UIView { override init(frame: CGRect) {
super.init(frame: frame)
// Initialization code self.backgroundColor = UIColor(white: 1, alpha: 0)
} required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
} private var _progressValue:CGFloat = 0 public func getProgressValue()->CGFloat{
return _progressValue
} public func setProgressValue(value:CGFloat){
_progressValue = value setNeedsDisplay()
} // Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func drawRect(rect: CGRect)
{
// Drawing code var ctx = UIGraphicsGetCurrentContext() var r = rect.width/2 CGContextAddArc(ctx, r, r, r, 0, 3.141592653*2, 0)
CGContextSetRGBFillColor(ctx, 0.7, 0.7, 0.7, 1)
CGContextFillPath(ctx) CGContextAddArc(ctx, r, r, r, 0, 3.141592653*2*_progressValue, 0)
CGContextAddLineToPoint(ctx, r, r)
CGContextSetRGBFillColor(ctx, 0, 0, 1, 1)
CGContextFillPath(ctx)
} }

viewcontroller:

//
// ViewController.swift
// L02MyProgressControl
//
// Created by plter on 7/29/14.
// Copyright (c) 2014 jikexueyuan. All rights reserved.
// import UIKit class ViewController: UIViewController { @IBAction func addProgressBtnPressed(sender: AnyObject) { pc.setProgressValue(pc.getProgressValue()+0.1)
} override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib. pc = ProgressControl(frame: CGRect(x: 100, y: 100, width: 100, height: 100))
self.view.addSubview(pc)
} private var pc:ProgressControl! override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
} }

使用alertview展示的方案:

            let frame = CGRectMake(0, 0, 78, 78)
let window = UIWindow()
window.backgroundColor = UIColor.clearColor()
let mainView = UIView()
mainView.layer.cornerRadius = 12
mainView.backgroundColor = UIColor(red:0, green:0, blue:0, alpha: 0.8) let ai = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.WhiteLarge)
ai.frame = CGRectMake(21, 21, 36, 36)
ai.startAnimating()
mainView.addSubview(ai) window.frame = frame
mainView.frame = frame window.windowLevel = UIWindowLevelAlert
window.center = self.view.center
window.hidden = false
window.addSubview(mainView)

一般的实现方法:


  //  activityIndicatorView

            m_objActivityIndicatorView = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.WhiteLarge)
m_objActivityIndicatorView!.frame = CGRectMake(self.view.frame.size.width/2 - 100, self.view.frame.size.height/2 - 100, 200, 200)
m_objActivityIndicatorView!.hidesWhenStopped = true
m_objActivityIndicatorView!.color = UIColor.blackColor()
m_objActivityIndicatorView!.layer.cornerRadius = 6
m_objActivityIndicatorView!.layer.masksToBounds = true self.view.addSubview(m_objActivityIndicatorView)
上一篇:iOS Swift 模块练习/swift基础学习


下一篇:iOS swift项目IM实现,从长连接到数据流解析分析之Socket