UIActivityViewController on iPad - ios

Question

I have been using the code below to show a UIActivityViewController which worked fine when I was using Xcode 6, Swift 1.2 and iOS 8. However when I updated it shows the UIActivityViewController but it is completely blank without any of the sharing options. Do you have any suggestions?
if UIDevice.currentDevice().userInterfaceIdiom == .Pad {
let textToShare = textViewOne.text
let objectsToShare = [textToShare]
let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)
let nav = UINavigationController(rootViewController: activityVC)
nav.modalPresentationStyle = UIModalPresentationStyle.Popover
let popover = nav.popoverPresentationController as UIPopoverPresentationController!
popover.sourceView = self.view
popover.sourceRect = sender.frame
self.presentViewController(nav, animated: true, completion: nil)
} else {
let textToShare = textViewOne.text
let objectsToShare = [textToShare]
let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)
self.presentViewController(activityVC, animated: true, completion: nil)
}

Answer 1

This has fixed it.
let objectsToShare = [textToShare]
let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)
activityVC.title = "Share One"
activityVC.excludedActivityTypes = []
activityVC.popoverPresentationController?.sourceView = self.view
activityVC.popoverPresentationController?.sourceRect = sender.frame
self.presentViewController(activityVC, animated: true, completion: nil)
in swift 3.0:
let objectsToShare = [textToShare]
let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)
activityVC.title = "Share One"
activityVC.excludedActivityTypes = []
activityVC.popoverPresentationController?.sourceView = self.view
activityVC.popoverPresentationController?.sourceRect = sender.frame
self.present(activityVC, animated: true, completion: nil)

Answer 2

I was struggling with the above suggestion with SWIFT 5 since:
activity.popoverPresentationController?.sourceRect = sender.frame
does NOT WORK in some cases, since sender is not available in scope.
Try instead to set with a CGRECT, something like:
activityController.popoverPresentationController?.sourceRect = CGRect(x: self.view.bounds.midX, y: self.view.bounds.midY,width: 0,height: 0)
I hope this helps some people.

Answer 3

Swift 4.0
let shareText = "Hi"
let activity = UIActivityViewController(activityItems: shareText, applicationActivities: nil)
activity.excludedActivityTypes = []
if UIDevice.current.userInterfaceIdiom == .pad {
activity.popoverPresentationController?.sourceView = self.view
activity.popoverPresentationController?.sourceRect = sender.frame
}
self.present(activity, animated: true, completion: nil)

Answer 4

I had sort of a different issue. I wanted the UIActivityViewController to stay in the center of the screen but when rotating the iPad it was off centered when in Landscape.
Landscape wrong:
The 2 fixes was to make the UIActivityViewController a class property and most importantly set its sourceRect in viewDidLayoutSubviews. Follow the 5 steps-
// 1. make the activityVC a class property
var activityVC: UIActivityViewController?
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
if UIDevice.current.userInterfaceIdiom == .pad {
// 2. set its sourceRect here. It's the same as in step 4
activityVC?.popoverPresentationController?.sourceRect = CGRect(x: UIScreen.main.bounds.width / 2, y: UIScreen.main.bounds.height / 2, width: 0, height: 0)
}
}
// 3. present the UIActivityViewController
func presentActivityVC() {
let objectsToShare = [textToShare]
activityVC = nil
activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)
activityVC?.excludedActivityTypes = [.addToReadingList, .openInIBooks, .print]
activityVC?.popoverPresentationController?.sourceView = self.view
if UIDevice.current.userInterfaceIdiom == .phone {
activityVC?.modalPresentationStyle = .overFullScreen
}
if UIDevice.current.userInterfaceIdiom == .pad {
// 4. set its sourceRect here. It's the same as in step 2
activityVC?.popoverPresentationController?.sourceRect = CGRect(x: UIScreen.main.bounds.width / 2, y: UIScreen.main.bounds.height / 2, width: 0, height: 0)
activityVC?.popoverPresentationController?.permittedArrowDirections = []
}
present(activityVC!, animated: true, completion: nil)
activityVC?.completionWithItemsHandler = { [weak self](activityType, completed:Bool, returnedItems:[Any]?, error: Error?) in
if let error = error {
print(error.localizedDescription)
return
}
// 5. set the activityVC to nil after the user is done
DispatchQueue.main.async { [weak self] in
self?.activityVC = nil
}
}
}
Now when rotating it's centered both in landscape and portrait.
Landscape correct:
Portrait:

Answer 5

if you want to attach the popover to the sender view's bounds, then the following code will work:
let vc = UIActivityViewController(activityItems: [url], applicationActivities: nil)
if UIDevice.current.userInterfaceIdiom == .pad {
vc.popoverPresentationController?.sourceView = sender
vc.popoverPresentationController?.sourceRect = CGRect(origin: CGPoint.zero, size: sender.frame.size)
}
sourceRect is defined in the coordinate space of the sourceView, thus we need to specify the origin of the sourceRect as CGPoint.zero rather than sender.frame.origin.

Answer 6

We would need to set the sourceView and sourceRect both specially for iPad.
We may try below snippet
activityViewController.popoverPresentationController?.sourceView = sender.self
activityViewController.popoverPresentationController?.sourceRect = CGRect(x: self.view.bounds.minX + sender.frame.width/2, y: self.view.bounds.minY, width: 0, height: 0)
activityViewController.popoverPresentationController?.permittedArrowDirections = []
It would set the sourceView as sender's and sourceRect at center to the UI.
We are adding sender.frame.width/2 to x coordinate and removing the anchor arrow as well to get the pop-up exactly at center.

Answer 7

Updated for swift 4 ~ 5 with action event example, it'll show arrow also.Tested on iPadOS 15.7.2 & iOS 16.1, 13.6
#objc
private final func handleShareButtonPress(_ sender: UIButton) {
let urlString = Manager.getShareEventBaseURL
guard let url = URL(string: urlString) else { return }
let items: [Any] = [url]
let activityController = UIActivityViewController(activityItems: items, applicationActivities: nil)
activityController.title = "\(user.name) sharing with you."
if let popoverController = activityController.popoverPresentationController {
popoverController.sourceView = self.view // to set the source of your alert
popoverController.sourceRect = sender.convert(sender.frame, to: self.view) /// Get correct rect of sender view
popoverController.permittedArrowDirections = [.up] // declare the direction of sender to show arrow
}
present(activityController, animated: true)
}