iOS Present Popover from bar button item bottom

Question

I have an UIPopoverController that presents an UIViewController using this method:

[self.popover presentPopoverFromBarButtonItem:self.infoBarButtonItem 
                     permittedArrowDirections:UIPopoverArrowDirectionUp
                                     animated:YES];

self.popover is my UIPopoverController.

The code works well, but the Popover arrow is in the middle of the BarButtonItem how do I display the Popover with its arrow "under" the button?

This is what it currently looks like:

Palette

Answer 1

How about this

UIBarButtonItem *item = self.infoBarButtonItem ;

UIView *view = [item valueForKey:@"view"];

if(view){

        CGRect frame=view.frame;

        [self.popover presentPopoverFromRect:frame
                                      inView:view.superview
                    permittedArrowDirections:UIPopoverArrowDirectionUp
                                    animated:YES];



}

Dubitable

How would you get the frame of a UIBarButtonItem?? – Casework

Answer 2

In iOS 9 you can try this code:

let alert = UIAlertController(title: "title", message: "message", preferredStyle: UIAlertControllerStyle.ActionSheet)
alert.modalPresentationStyle = UIModalPresentationStyle.Popover
alert.popoverPresentationController?.barButtonItem = sender
presentViewController(alert, animated: true, completion: nil)

Ivyiwis

Hey, welcome to Stack Overflow! Don't forget to format your code snippets using a 4-space indent, to make it look nicer. – Knur

@StudentT Sorry that's a UIAlertController. Answer edited. – Ivyiwis

As of this writing, note that the barButtonItem property of a UIPopoverPresentationController is deprecated in iOS 16. You should switch to sourceItem if possible. developer.apple.com/documentation/uikit/… – Gman

Answer 3

For all who are using UIViewController with PopoverPresentationController (iOS 9+); This worked for me: you can directly set your UIBarButtonItem like this.

myPopoverPresentationController?.barButtonItem = myUIBarButtonItem

Jeth

Answer 4

My recommendation would be to use the method:

presentPopoverFromRect:inView:permittedArrowDirections:animated:

and give it an appropriate CGRect to make the UIPopoverController appear where you would like.

You could then specify exactly where you'd like the popover to originate and point to. This is not an ideal situation, but when it come to giving the popover controller a UIBarButtonItem, you have no say as to how it should use it to position itself.

Sortilege

Answer 5

Try this in the selector method of the info button :

[self.popover presentPopoverFromRect:[(UIButton *)sender frame]
                                         inView:self.view
                       permittedArrowDirections:UIPopoverArrowDirectionUp
                                       animated:YES];

Hope this helps you!

Embassy

It's UIBarButtonItem, not UIButton – Quadriga

Answer 6

It can be done by using this code.

In Swift

 if UIDevice.current.userInterfaceIdiom == .pad {
    let item = self.navigationItem.rightBarButtonItem;
    let view = item?.value(forKey: "view")
    let popPresenter = alert.popoverPresentationController
    popPresenter?.sourceView = view
    popPresenter?.sourceRect = view.bounds
 }
 present(alert, animated: true, completion: nil)

In Objective-C

if([[UIDevice currentDevice]userInterfaceIdiom]== UIUserInterfaceIdiomPad) {
    UIBarButtonItem *item = self.navigationItem.rightBarButtonItem;
    UIView *view = [item valueForKey:@"view"];
    UIPopoverPresentationController *popover = alert.popoverPresentationController;
    if(view){
       popover.sourceRect = view.frame;
       popover.sourceView = view;
    }
 }

Planter