UICollectionView inside of a UITabBarController

Question

I gotta to create a UICollectionView inside of a UITabBarController. I've trying many ways, but I always end up getting an error.

This is my code at the moment:

import UIKit

class TabBarController: UITabBarController, UICollectionViewDataSource 
{
    @IBOutlet weak var collectionView: UICollectionView!

    override func viewDidLoad() {
        super.viewDidLoad()

        self.collectionView.dataSource = self

I got an error in self.collectionView.dataSource = self, which is: Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value } }

//CollectionView
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return 10
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "idCell", for: indexPath)
        cell.backgroundColor = .blue

    return cell
}

This is how I created the screen:

TabBarScreenStoryboard

TabBarController

So, what would be the best way for me to do that?

Why are you adding the methods from `UITableViewDataSource` instead of `UICollectionViewDataSource`? — rmaddy, May 26 '18 at 05:06
Oops, completely my bad. This was effect of stay in front of the computer for many hours. I replaced the code, but I still getting an error, could you check it out, please? — Bruno Vavretchek, May 26 '18 at 05:57
Possible duplicate of [What does "fatal error: unexpectedly found nil while unwrapping an Optional value" mean?](https://stackoverflow.com/questions/32170456/what-does-fatal-error-unexpectedly-found-nil-while-unwrapping-an-optional-valu) — rmaddy, May 26 '18 at 06:01
How do you create and display an instance of this `TabBarController` class? — rmaddy, May 26 '18 at 06:12
I updated once again, now posting a picture of the TabBarController class — Bruno Vavretchek, May 26 '18 at 06:20

score 0 · Accepted Answer · answered Jun 21 '18 at 02:23

0

I got to fix by checking the Storyboard where I had a Sigabart error.

answered Jun 21 '18 at 02:23

Bruno Vavretchek

17
6

UICollectionView inside of a UITabBarController

1 Answers1