Embedding images from array in cells of Collection view - ios

Question

I have a UIViewController setup that also contains a UICollectionView inside of it. This Collection view has multiple cells, each of which I would like to make display an image. The images are contained in an array called imageThumbsAray. Each cell is a 90x90 square and I would like the image to fill the content area of each cell. Below is my code for the collection view. It seems to be correct, but when I run the app, I am returned with an empty collection view.
func SetupCollectionView() {
let layout:UICollectionViewFlowLayout = UICollectionViewFlowLayout()
layout.sectionInset = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)
layout.itemSize = CGSize(width: 90, height: 90)
PastObjectsCollection = UICollectionView(frame: CGRect(x: 16, y: 229, width: 368, height: 368), collectionViewLayout: layout)
PastObjectsCollection!.dataSource = self
PastObjectsCollection!.delegate = self
PastObjectsCollection!.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier:"Chow Object Reuse ID")
}
func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return objectsCount
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("Chow Object Reuse ID", forIndexPath: indexPath) as UICollectionViewCell
cell.backgroundColor = UIColor.whiteColor()
var imageView:UIImageView = UIImageView()
imageView.frame = CGRect(x: 0, y: 0, width: 90, height: 90)
imageView.image = imageThumbsArray[indexPath.row]
cell.addSubview(imageView)
return cell
}
Why is the Collection view not creating the cells?
Thanks,
Siddharth

Answer 1

This code use as much of your code as as I could. You can compare line by line. I did't have your image assets or object array. This is all programmatic. Let me know if you need more help.
import UIKit
class ViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
var PastObjectsCollection:UICollectionView?
var layout:UICollectionViewFlowLayout?
override func viewDidLoad() {
super.viewDidLoad()
SetupCollectionView()
}
func SetupCollectionView() {
self.layout = UICollectionViewFlowLayout()
self.layout!.sectionInset = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)
self.layout!.itemSize = CGSize(width: 90, height: 90)
self.PastObjectsCollection = UICollectionView(frame: CGRect(x: 16, y: 229, width: 368, height: 368), collectionViewLayout: layout!)
self.PastObjectsCollection!.dataSource = self
self.PastObjectsCollection!.delegate = self
self.PastObjectsCollection!.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier:"Chow Object Reuse ID")
self.PastObjectsCollection!.backgroundColor = UIColor.blackColor()
self.view.addSubview(self.PastObjectsCollection!)
}
func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 1 //objectsCount
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("Chow Object Reuse ID", forIndexPath: indexPath) as UICollectionViewCell
cell.backgroundColor = UIColor.whiteColor()
var imageView:UIImageView = UIImageView()
imageView.frame = CGRect(x: 0, y: 0, width: 90, height: 90)
//imageView.image = imageThumbsArray[indexPath.row]
cell.addSubview(imageView)
return cell
}
}