swift - 无法更改弹出框的大小

Question

我一直在尝试创建自己的代码以及复制和粘贴示例，但我的弹出窗口似乎填满了整个屏幕。一般来说，我的代码如下所示，但正如我所说，我已经尝试了至少两个其他示例(一些使用 CGSizeMake()、sourceRect、sourceView)，并且结果始终相同。

Class TableView: UITableViewController, UIPopoverPresentationControllerDelegate {
    let popover = UIViewController()

    func someButton() {
        popover.modalPresentationStyle = .Popover
        popover.preferredContentSize = CGSize(1, 1)
        let menu = popover.popoverPresentationController
        menu!.delegate = self
        menu!.barButtonItem = someOtherCorrectButton
        self.presentViewController(popover, animated: true, completion: nil)
    }
}

有什么问题吗？

Answer 1

尝试下面的代码

     popover.modalPresentationStyle = .Popover

     var popupHeight:CGFloat = 542
     let popupWidth = 400 as CGFloat
     popover.preferredContentSize = CGSizeMake(400,popupHeight)
     let window = UIApplication.sharedApplication().delegate!.window!!

    let screenSize: CGRect = window.bounds

    var XCordinate = (screenSize.width - popupWidth) / 2
    var YCordinate = (screenSize.height / 2) + 20

    let menu = popover.popoverPresentationController
    menu!.delegate = self
    menu!.sourceView = window            
    menu!.sourceRect = CGRect( x: XCordinate, y: YCordinate, width: 1, height: 1)
    self.presentViewController(popover, animated: true, completion: nil)

也许它适合你。