Swift 菊花、UIPageControl和UIProgressView

// Make: 加载 菊花

func _initUIActivityIndicatorView() {

let activity = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.White)

activity.frame = CGRect(x: 100, y: 100, width: 50, height: 50)

activity.backgroundColor = UIColor.blueColor()

//开始转动

activity.startAnimating()

//停止转动并且隐藏

//        activity.stopAnimating()

self.view.addSubview(activity)

}

// Make: 页码控制器

func _initPageControl() {

let pageControl = UIPageControl(frame: CGRect(x: 100, y: 200, width: 100, height: 20))

pageControl.backgroundColor = UIColor.blueColor()

//设置总页数

pageControl.numberOfPages = 3

//设置当前选中的页数,从0开始

pageControl.currentPage = 2

//添加点击事件

pageControl.addTarget(self, action: "pageAction:", forControlEvents: UIControlEvents.ValueChanged)

self.view.addSubview(pageControl)

}

func pageAction(pageControl: UIPageControl) {

print("currentPage is \(pageControl.currentPage)")

}

// Make: 进度条

func _initProgress() {

let progress = UIProgressView(progressViewStyle: UIProgressViewStyle.Default)

//设置进度值(0-1)

progress.progress = 1

//设置已经加载的进度条的颜色

progress.progressTintColor = UIColor.orangeColor()

//设置未加载的进度条的颜色

progress.trackTintColor = UIColor.blueColor()

progress.frame = CGRect(x: 10, y: 300, width: 300, height: 0)

progress.backgroundColor = UIColor.whiteColor()

self.view.addSubview(progress)

// 定时器

NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: "progressAction:", userInfo: progress, repeats: true)

}

func progressAction(timer: NSTimer) {

let progress = timer.userInfo as! UIProgressView

progress.progress += 0.05

if progress.progress == 1 {

//            timer.invalidate() // 关闭定时器

progress.progress = 0 // 进度条设置为0

}

}