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.
Until you've set a modalPresentationStyle on your VC, the popoverPresentationController property will be nil. Ensure that you set the modalPresentationStyle before accessing.
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
}
}
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)
}
Related
I don't ask for a lot out of life, but I'd give a lot to know how to get a navigation bar on this popover:
Here's my storyboard:
And here's my code presenting the popover:
#IBAction func doButton(_ sender: Any) {
let vc = PopViewController()
vc.preferredContentSize = CGSize(width: 260,height: 300)
vc.modalPresentationStyle = .popover
vc.view.backgroundColor = UIColor.green
if let pres = vc.presentationController {
pres.delegate = (self as UIAdaptivePresentationControllerDelegate)
}
self.present(vc, animated: true)
if let pop = vc.popoverPresentationController {
pop.sourceView = (sender as! UIView)
pop.sourceRect = (sender as! UIView).bounds
pop.backgroundColor = vc.view.backgroundColor
}
}
}
extension ViewController : UIPopoverPresentationControllerDelegate {
func adaptivePresentationStyle(for controller: UIPresentationController, traitCollection: UITraitCollection) -> UIModalPresentationStyle {
return .none
}
}
(Thanks to #matt, BTW, for the above code!)
I've searched high and low on Google yet haven't found an answer that I could understand. I tried to add the nav bar in Storyboard, but no dice--the only element that would accept it was the prototype cell in the table view.
Please don't redirect to something written 7 years ago--I've already read most of them, and I'm using Swift now. Certainly, I may have overlooked a clear answer, and I'll be humble and contrite if that's the case. But meantime, I'd sure appreciate some help if ya got it!
Thanks!
Change your right tableview controller to a navigation controller with a tableViewController root. The navigation Controller gets an identifier : "navigation".
Now you can change the first code of doButton function, and keep the rest.
#IBAction func doButton(_ sender: Any) {
let vc = self.storyboard?.instantiateViewController(withIdentifier: "navigation") as! UINavigationController
vc.preferredContentSize = CGSize(width: 260,height: 300)
vc.modalPresentationStyle = .popover
vc.view.backgroundColor = UIColor.green
if let pres = vc.presentationController {
pres.delegate = (self as UIAdaptivePresentationControllerDelegate)
}
self.present(vc, animated: true)
if let pop = vc.popoverPresentationController {
pop.sourceView = (sender as! UIView)
pop.sourceRect = (sender as! UIView).bounds
pop.backgroundColor = vc.view.backgroundColor
}
}
finally , you will get the nav bar in your popover.
I am trying to add a popover to my controller using code. For some reason, the popover appears, but there is no content inside.
The code I'm using for the transition is:
#IBAction func presentPopover(_ sender: UIButton) {
//performSegueWithIdentifier("Popover", sender: self)
let vc = PopoverViewController()
vc.modalPresentationStyle = .popover
let popover = vc.popoverPresentationController!
popover.delegate = self
popover.permittedArrowDirections = .right
vc.popoverPresentationController?.sourceView = sender
vc.popoverPresentationController?.sourceRect = sender.bounds
...
present(vc, animated: true, completion: nil)
}
The popover view is made in the storyboard, and is of class PopoverViewController After doing some testing it says that the PopoverViewController's viewDidAppear is triggered.
as rmaddy mention The line let vc = PopoverViewController() does not use the storyboard. so you need to do it like that
if let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "PopoverViewController") as? PopoverViewController {
vc.modalPresentationStyle = .popover
let popover = vc.popoverPresentationController!
popover.delegate = self
popover.permittedArrowDirections = .right
vc.popoverPresentationController?.sourceView = sender
vc.popoverPresentationController?.sourceRect = sender.bounds
self.present(vc, animated: true, completion: nil)
}
I want to have a small UItableView that popup when clicked and shows some numbers in the list.
I tried to use popoverPresentationController but it appears full screen for iOS(iPhone) devices.
below is the code for same -
let filterVC = TableViewController(nibName: "TableViewController", bundle: nil)
filterVC.preferredContentSize = CGSize(width: 300, height: 200)
filterVC.modalPresentationStyle = UIModalPresentationStyle.popover
present(filterVC, animated: true, completion: nil)
let popoverPresentationController = filterVC.popoverPresentationController
if let pop = filterVC.popoverPresentationController {
pop.delegate = self
}
popoverPresentationController?.sourceView = sender as? UIView
popoverPresentationController?.sourceRect = sender.frame
//-------
with below method also
func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
// Return no adaptive presentation style, use default presentation behaviour
return .none
}
//-----
Any hint in right direction would be highly appreciated.
working sample would be greatly helpful
What I am trying to achieve as below
UPDATE
There is a useful library you may want to give a try.
It's because your pop.delegate was assigned after you present the filterVC.
Move this
if let pop = filterVC.popoverPresentationController {
pop.delegate = self
pop.sourceView = sender
pop.sourceRect = sender.bounds
}
present(filterVC, animated: true, completion: nil)
to the init of your filterVC should do the trick. Btw, I didn't see anywhere you have assigned sourceView and sourceRect for your popoverPresentationController. Moving pop.delegate = self to this part should be appropriate. Something like
init(for sender: UIView)) {
super.init(nibName: nil, bundle: nil)
modalPresentationStyle = .popover
guard let pop = popoverPresentationController else { return }
pop.sourceView = sender
pop.sourceRect = sender.bounds
pop.delegate = self
}
Problem State: I've two viewController
parentViewController (375 * 667)
childViewController (300 * 667)
and i want to present childViewController at Axis (75 * 0) as shown below
childViewController is show on this IBAction
#IBAction func btnShowVC(_ sender: UIButton) {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let newVC = storyboard.instantiateViewController(withIdentifier: "cvc") as? childViewController
self.present(newVC!, animated: true, completion: nil)
}
But it stretches itself like
can anyOne help me to tackle it?
Thanks
You can try in this way.
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let newVC = storyboard.instantiateViewController(withIdentifier: "ChildViewController") as? ChildViewController
view.addSubview((newVC?.view)!)
newVC?.view.frame = CGRect(x:75,y:0,width:view.frame.size.width-75,height:view.frame.size.height)
newVC?.view.autoresizingMask = \[.flexibleWidth, .flexibleHeight\]
newVC?.didMove(toParentViewController: self)
Where are you setting the frame of your ViewController? If you are using autolayout you will need to set constraints to make the ViewController look how you want it to. If you want to do it programatically you can set the frame somewhere for example in the code that you posted above you could do this:
#IBAction func btnShowVC(_ sender: UIButton) {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let newVC = storyboard.instantiateViewController(withIdentifier: "cvc") as? childViewController
newVc.view.frame = CGRect(x: 75, y: 0, width: 300, height: 667)
self.present(newVC!, animated: true, completion: nil)
}
By setting preferredContentSize property will solve your problem, Please try out below code snippet
newVC?.preferredContentSize = CGSize(width: 300, height: 667)
I am presenting my viewController like so using accessoryButtonTappedForRowWith:
let storyboard : UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let popoverContent = storyboard.instantiateViewController(withIdentifier: "Test")
popoverContent.modalPresentationStyle = .popover
if let popover = popoverContent.popoverPresentationController {
let viewForSource = self.createCharacterView as UIView
popover.sourceView = viewForSource
// the position of the popover where it's showed
popover.sourceRect = viewForSource.bounds
// the size you want to display
popoverContent.preferredContentSize = CGSize(width: 200,height: 200)
popover.delegate = self
}
self.present(popoverContent, animated: true, completion: nil)
The pop up works and looks fine it's just that the viewController that I am presenting needs to the label of the tableViewCell. I am able to get the variable, but I'm unsure how to pass the variable to the popover since a segue isn't called I don't think I am able to use prepare(for segue: UIStoryboardSegue, sender: Any?).
It was too simple:
popoverContent.variableName = passingVariable
You might need to cast you popOvercontent to you specific viewController
(popoverContent as? MyViewController).myVar = value