Reputation: 11
I’m using Storyboards and AutoLayout. There are 2 scenes, 1 is my main view controller with a toolbar and several UIBarButtonItems and 1 is a UIViewController that should simply display a UILabel. When the user taps a toolbar in my main view controller, I present the popover with the following code:
func presentPopover(viewCtrl: UIViewController, item: UIBarButtonItem) {
viewCtrl.modalPresentationStyle = .Popover
let popover: UIPopoverPresentationController = viewCtrl.popoverPresentationController!
popover.permittedArrowDirections = .Any
popover.barButtonItem = item
self.presentViewController(viewCtrl, animated: true, completion: nil)
}
helpView = UIStoryboard(name: "Main", bundle: nil).instantiateViewControllerWithIdentifier("HelpView“) as? HelpVC
if helpView != nil {
presentPopover(helpView!, helpButton)
}
The view gets presented but no subviews (UILabel) are visible. The same strange behaviour happens, when I setup storyboard segues instead of doing the popover presentation from code. However, when I push the very same view on my UINavigationController everything gets displayed fine. Am I missing something?
Best Regards, Oliver
Upvotes: 1
Views: 10233
Reputation: 2896
For best tutorial click here
UIPopoverPresentationControllerDelegate
@IBAction func onClickMenu(_ sender: UIButton)
{
if btnMenu.isSelected
{
btnMenu.setImage(UIImage(named: "arrow_orange"), for: UIControlState.normal)
btnMenu.isSelected = false
self.dismiss(animated: true, completion: nil)
}
else
{
btnMenu.setImage(UIImage(named: "up_arrow_orange"), for: UIControlState.normal)
btnMenu.isSelected = true
let popMenu = MenuViewController(nibName: "MenuViewController", bundle: nil)
popMenu.modalPresentationStyle = UIModalPresentationStyle.popover
popMenu.preferredContentSize = CGSize.init(width: 320, height: 265)
popMenu.vcPush = self
self.present(popMenu, animated: true, completion: nil)
let popController : UIPopoverPresentationController = popMenu.popoverPresentationController!
popController.permittedArrowDirections = UIPopoverArrowDirection.up
popController.delegate = self
//popController?.barButtonItem = nil
popController.sourceView = self.view
popController.sourceRect = CGRect.init(x: 525, y: 30, width: 10, height: 10)
}
}
For best tutorial click here
Upvotes: 0
Reputation: 3838
Adjust the sizes to what you want. You can set the barbutton instead of the sourceView if you pass that in.
if let controller = viewCtrl {
controller.preferredContentSize = CGSizeMake(200,25)
controller.modalPresentationStyle = UIModalPresentationStyle.Popover
if let popover = controller.popoverPresentationController {
popover.delegate = self
popover.sourceView = viewCtrl.view
popover.sourceRect = CGRectMake(0,-5, 50, 50)
popover.permittedArrowDirections = .Any
self.presentViewController(controller, animated: true, completion: nil)
}
}
Upvotes: 1