来自iPhone的UIButton的UIPopOver

Question

我们可以使用源为UIButton Swift在iPhone设备中创建类似UIPopOver iPad UIPopOver ？ 我创建UIPopOver从UIBarButtonItem其工作正常，但它不是在的情况下，工作UIButton 。 任何人都可以尽快提出更好的解决方案。 我需要在iPhone设备上工作。

Answer 1

是的，可以，但是您需要实现popoverPresentationController委托

let viewController = self.storyboard?.instantiateViewControllerWithIdentifier("AnnotationInfoViewController") as! PopUpViewController

//If you want to show view from XIB file you can create viewController instance like this
//let viewController = UIViewController()
//let myView = NSBundle.mainBundle().loadNibNamed("PopUpView", owner: self, options: nil)[0] as! PopUpView
//viewController.view = myView

//Pass the information that you want to show
viewController.data = passdata

//Set the viewController for popoverPresentationController 
viewController.modalPresentationStyle = .Popover
viewController.preferredContentSize = CGSize(width: viewController.view.frame.size.width, height: 80)
viewController.popoverPresentationController!.delegate = self;
viewController.popoverPresentationController!.permittedArrowDirections = [.Up , .Down]
viewController.popoverPresentationController!.sourceView = yourBtn!
viewController.popoverPresentationController!.sourceRect = yourBtn.frame
self.presentViewController(viewController, animated: true, completion: nil)

现在，在ViewController实现popoverPresentationController此方法

func adaptivePresentationStyleForPresentationController(controller: UIPresentationController) -> UIModalPresentationStyle {
    return .None;
}