最佳答案
您尝试做的是弹出窗口,对于当前版本的 iOS,您可以在 iPad 和 iPhone 上实现相同的效果。
1.- 首先在 Storyboard 或 xib 上构建您的设计。然后引用它。
2.- 然后将其呈现为弹出窗口。
3.- 也许您会想要实现 popoverdelegates 以避免旋转设备时位置错误。
例如:
private static func presentCustomDialog(parent: UIViewController) -> Bool {
/// Loads your custom from its xib or from Storyboard
if let rateDialog = loadNibForRate() {
rateDialog.modalPresentationStyle = UIModalPresentationStyle.Popover
rateDialog.modalTransitionStyle = UIModalTransitionStyle.CrossDissolve
let x = parent.view.center
let sourceRectX : CGFloat
let maximumDim = max(UIScreen.mainScreen().bounds.height, UIScreen.mainScreen().bounds.width)
if maximumDim == 1024 { //iPad
sourceRectX = x.x
}else {
sourceRectX = 0
}
rateDialog.popoverPresentationController?.sourceView = parent.view
rateDialog.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection.allZeros
rateDialog.popoverPresentationController?.sourceRect = CGRectMake(sourceRectX, x.y, 0, 0)
rateDialog.popoverPresentationController?.popoverLayoutMargins = UIEdgeInsetsMake(0, 0, 0, 0)
rateDialog.popoverPresentationController?.delegate = parent
rateDialogParent = parent
dispatch_async(dispatch_get_main_queue(), {
parent.presentViewController(rateDialog, animated: true, completion: nil)
})
return true
}
return false
}
Update: to achieve, point 3... on your parent
UIViewController
.
public class MyParentViewController: UIViewController, UIPopoverPresentationControllerDelegate {
/**
This function guarantees that the CustomDialog is always centered at parent, it locates the Dialog view
*/
public func popoverPresentationController(popoverPresentationController: UIPopoverPresentationController, willRepositionPopoverToRect rect: UnsafeMutablePointer<CGRect>, inView view: AutoreleasingUnsafeMutablePointer<UIView?>) {
let x = popoverPresentationController.presentingViewController.view.center
let newRect = CGRectMake(x.x, x.y, 0, 0)
rect.initialize(newRect)
}
}
关于ios - 如何在 swift ios 中创建自定义 UIAlertController?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31997885/