你好,我想在我的UIActivityIndicatorView
上显示一个UIViewController
正是这样的
我怎样画一个像上图这样的UIViewIndicator
我试过了
func showIndicatorView(){
let loadingIndicator = UIActivityIndicatorView(frame: CGRectMake(0, 0, 50, 50))
loadingIndicator.layer.cornerRadius = 05
loadingIndicator.opaque = false
loadingIndicator.backgroundColor = UIColor(white: 0.0, alpha: 0.6)
loadingIndicator.center = self.view.center;
loadingIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
loadingIndicator.color = UIColor.whiteColor()
loadingIndicator.startAnimating()
self.view.addSubview(loadingIndicator)
}
最佳答案
你可以把它放在另一个有黑色背景的视图中。像这样的东西。如果需要,还可以在该视图中添加“正在加载…”标签。
func showIndicatorView(){
let loadingIndicator = UIActivityIndicatorView(frame: CGRectMake(0, 0, 50, 50))
let backgroundView = UIView()
backgroundView.layer.cornerRadius = 05
backgroundView.clipsToBounds = true
backgroundView.opaque = false
backgroundView.backgroundColor = UIColor(white: 0.0, alpha: 0.6)
loadingIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
loadingIndicator.color = UIColor.whiteColor()
loadingIndicator.startAnimating()
let loadingLabel = UILabel()
loadingLabel.text = "Loading..."
let textSize: CGSize = loadingLabel.text!.sizeWithAttributes([NSFontAttributeName: loadingLabel.font ])
loadingLabel.frame = CGRectMake(50, 0, textSize.width, textSize.height)
loadingLabel.center.y = loadingIndicator.center.y
backgroundView.frame = CGRectMake(0, 0, textSize.width + 70, 50)
backgroundView.center = self.view.center;
self.view.addSubview(backgroundView)
backgroundView.addSubview(loadingIndicator)
backgroundView.addSubview(loadingLabel)
}
关于ios - 如何在UIActivityIndicatorView后面添加黑色背景,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/36301606/