5
我试图做一个弹出窗口,将通过按下按钮呈现。试图按照我在谷歌找到的说明,但我的流行视图呈现在全屏幕和背景是黑色的。 这里是我的代码:Popup UIViewController
class ViewController: UIViewController, UIPopoverPresentationControllerDelegate {
@IBAction func someButtonPressed(sender: UIButton) {
let storyboard : UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let popupVC = storyboard.instantiateViewControllerWithIdentifier("hello") as! popupViewController
popupVC.modalPresentationStyle = .Popover
popupVC.preferredContentSize = CGSizeMake(300, 300)
let pVC = popupVC.popoverPresentationController
pVC?.permittedArrowDirections = .Any
pVC?.delegate = self
pVC?.sourceView = sender
pVC?.sourceRect = CGRect(x: 100, y: 100, width: 1, height: 1)
presentViewController(popupVC, animated: true, completion: nil)
}
}
我做错了什么?