CODEWITHSUNDEEP
iosswiftstoryboarduipopovercontrolleruipopover
Ekra
Ekra

Reputation: 3301

PopoverPresentationController coming as nil

Created a SingleViewApplication in that I have placed a button.

Now clicking on button I need to display a tableView as popover. The TableViewController is created in xib.

The issue is tableViewController.popoverPresentationController always comes as nil see below code

     let filterVC =  TableViewController(nibName: "TableViewController", bundle: nil)
    var filterDistanceViewController = UINavigationController(rootViewController: filterVC)
    filterDistanceViewController.preferredContentSize = CGSize(width: 300, height: 200)
    let popoverPresentationViewController = filterDistanceViewController.popoverPresentationController
    popoverPresentationViewController?.permittedArrowDirections = .any


    if let pop = filterDistanceViewController.popoverPresentationController {
        pop.delegate = self
    }

in above code filterDistanceViewController.popoverPresentationController is always coming as nil

Any hint in right direction will be highly appreciated.

Upvotes: 4

Views: 5166

Answers (3)

Dan Rosenstark
Dan Rosenstark

Reputation: 69787

Until you've set a modalPresentationStyle on your VC, the popoverPresentationController property will be nil. Ensure that you set the modalPresentationStyle before accessing.

Upvotes: 14

DariusV
DariusV

Reputation: 2773

You are not presenting anything, so you need to present the popoverPresentationViewController on the current viewcontroller, for example: 

@IBAction func importantButtonPressed(_ sender: UIButton) {
         let tableViewController = UITableViewController()
         tableViewController.modalPresentationStyle = .popover

         present(tableViewController, animated: true, completion: nil)

        if let pop = tableViewController.popoverPresentationController {
          pop.delegate = self
        }

    }

Upvotes: 5

ovo
ovo

Reputation: 2172

You may do like below.

@IBAction func popoverBtnPressed(_ sender: Any) {

    let vc2 = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ViewController2")
    vc2.modalPresentationStyle = .popover
    vc2.popoverPresentationController?.delegate = self
    vc2.popoverPresentationController?.barButtonItem = popoverBtn
    vc2.popoverPresentationController?.sourceRect = .zero
    present(vc2, animated: true, completion: nil)
}

Upvotes: 3

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