我正在通过uibutton在iPad上提供一个弹出框控制器。我将UIPopoverController的委托设置为主视图控制器。 “ popoverControllerShouldDismissPopover”和“ popoverControllerDidDismissPopover”都没有被调用。我想念什么吗?

class MainVC: UIViewController,UIPopoverControllerDelegate

@IBAction func btnTPD(sender: UIButton) {

    var vc = MyXIB(nibName: "MyXIB",bundle: nil)

    var nav = UINavigationController(rootViewController: vc)

    var popover = UIPopoverController(contentViewController: nav)
    popover.delegate = self
    popover.popoverContentSize = CGSize(width: 283, height: view.bounds.height * 0.6)
    popover.presentPopoverFromRect(sender.frame, inView: self.view, permittedArrowDirections: UIPopoverArrowDirection.Any, animated: false)

}

func popoverControllerShouldDismissPopover(popoverController: UIPopoverController) -> Bool {

    println("SHOULD DISMISS")

    return true

}

func popoverControllerDidDismissPopover(popoverController: UIPopoverController) {

    println("DID DISMISS")

}

最佳答案

看来我的UIPopoverController实例(var popover)需要在“ btnTPD”函数外声明,以使委托函数起作用。

class MainVC: UIViewController,UIPopoverControllerDelegate {

var popover: UIPopoverController!

@IBAction func tapped(sender: UIButton) {

    var vc = MyXIB(nibName: "MyXIB",bundle: nil)

    var nav = UINavigationController(rootViewController: vc)

    popover = UIPopoverController(contentViewController: nav)
    popover.delegate = self
    popover.popoverContentSize = CGSize(width: 283, height: view.bounds.height * 0.6)
    popover.presentPopoverFromRect(sender.frame, inView: self.view, permittedArrowDirections: UIPopoverArrowDirection.Any, animated: false)

}

func popoverControllerShouldDismissPopover(popoverController: UIPopoverController) -> Bool {

    println("SHOULD DISMISS")

    return true

}

func popoverControllerDidDismissPopover(popoverController: UIPopoverController) {

    println("DID DISMISS")

}


}

10-07 19:43
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