UIPopoverController Tutorial For iPad with iOS8 Swift: iOS Programming

UIPopoverController Tutorial

UIPopoverController is similar to Action Sheet. it is also another cool and important tool, especially for the iPad. PopoverController is a nice way to present information to the user.A popover controller is nothing but a container which is used to display content on top of another content. UIPopoverController’s content is layered on top of your existing content in a special type of window.

In our Previous Tutorial, we have already completed UIActionSheet so if you have not then read out Action Sheet Tutorial.

Project Setup:

This Tutorial is built in Xcode 8.2.1 so if you have not update your Xcode, First Update Xcode. Now Open Xcode and create a new Single View Application. In product name, use PopoverTutorialDemo and then fill out the Organisation Name and Organisation Identifier with your customary values. Select Swift as Language and make sure you have select iPad style for Devices.

Make UIDesign:

Go to the Storyboard, drag a Button from the Object Library to the View Controller inside the Storyboard. Double-click the Button and give it a title of “Show PopOver” or whatever you want.

Make IBOutLayoutConnection for UIButton:

Open the Assistant Editor. Ctrl + drag from the Button to the ViewController class and create the following Action and Click on Connect.

add UIPopoverController variable in ViewController class. This variable will be used in the ShowPopOverMthod.

var popOverData = UIPopoverController()

Now, we will create a new viewController. Add a new File -> iOS -> Cocoa Touch -> Swift class and make it a subclass of UITableViewController. Select the “With XIB for user interface” checkbox and name the class UserDataViewController.

Update Xib User Interface:

Go to UserDatViewController.xib and select UITableViewCell from object Library and dragon to xib. Now select Cell and give the cell identifier name with “reuseIdentifier”.

Implement UserDataViewController Class:

Go to UserDataViewController.swift. Inside This Class update the class with following code. This code is simple because we are just trying to register the TableViewCell and update DataSource methods of TableView Protocol.

return 1 under the numberOfSections method.

return 10 under the tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) method.

Uncomment tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell method.

import UIKit
class UserDataViewController:  UITableViewController{ 
//...




 
 
 


// in viewDidLoad method.
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "reuseIdentifier")

//in tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell 

 var cell = tableView.dequeueReusableCell(withIdentifier: "reuseIdentifier", for: indexPath) as? UITableViewCell
 cell?.textLabel?.text = "This is User \(indexPath.row)'s cell"
 
}

Now come back to ViewController class and add this code inside ShowPopOverMethod.

import UIKit
class ViewController:  UIViewController{ 
//...
let PopoverView = UserDataViewController(nibName: "UserDataViewController", bundle: nil)
self.popOverData = UIPopoverController(contentViewController: PopoverView)
self.popOverData.present(from: sender.frame, in: self.view, permittedArrowDirections: .down, animated: true) 
}

Now Build and run the App and click on “Show PopOver” button. Great New PopOver View will be Appear.

For your reference, you can download the complete Xcode project from here. Again, leave me to comment if you have any questions.