[英]Blurring viewController underneath another modally presented viewController?
我在左上角有一個帶有漢堡菜單的應用程序。 按下時,菜單以90%的不透明度淡入當前ViewController,顯示應用程序的主要導航選項。
我正在使用以下代碼從頁面顯示viewController:
@IBAction func navToMenu(sender: AnyObject) {
let vc = self.storyboard!.instantiateViewControllerWithIdentifier("mainMenu")
vc.view.backgroundColor = UIColor(red: 240/255, green: 112/255, blue: 49/255, alpha: 0.9)
vc.modalPresentationStyle = UIModalPresentationStyle.OverFullScreen
vc.modalTransitionStyle = UIModalTransitionStyle.CrossDissolve
self.presentViewController(vc, animated: true, completion: nil)
}
淡入菜單后,如何模糊菜單后面的viewController?
您必須像這樣將模糊效果應用於視圖
let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.Dark)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
//always fill the view
blurEffectView.frame = self.view.bounds
blurEffectView.autoresizingMask = [.FlexibleWidth, .FlexibleHeight]
self.view.addSubview(blurEffectView)
現在,編寫添加視圖的代碼。
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