I have a CollectionViewController with 3 buttons populated. The view works well, but how do I select different view controllers based on the button selected? I added the button as an action, but I don't know how to specify which button is selected so I can send the user to different viewcontrollers.
import UIKit
private let reuseIdentifier = "Cell"
class CollectionViewController: UICollectionViewController {
var imageArray = [UIImage(named: "tempOwl.png"), UIImage(named: "tempPuzzle.png"), UIImage(named: "tempHouse.png")]
override func viewDidLoad() {
super.viewDidLoad()
self.clearsSelectionOnViewWillAppear = false
self.collectionView!.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier: reuseIdentifier)
}
@IBAction func menuButton(sender: UIButton) {
let controller = storyboard?.instantiateViewControllerWithIdentifier("myHome")
presentViewController(controller!, animated: true, completion: nil)
}
override func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return 1
}
override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 3
}
override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as UICollectionViewCell
let imageView = cell.viewWithTag(1) as! UIButton
imageView.setBackgroundImage(self.imageArray[indexPath.row], forState: .Normal)
return cell
}
}
The button action method for your button in cell
func buttonAction(sender : UIButton) {
var selectedButtonCell = sender.superview as! UICollectionViewCell
//Incase your button is inside cell.contentview
// var selectedButtonCell = sender.superview.superview as! UICollectionviewCell
var indexPath = collectionView.indexPathForCell(selectedButtonCell)
if indexPath.row == 0 {
//Button in first cell is selected
//Send user to first button view controller
}
}
I suggest to create a class of type UICollectionViewCell and create the IBAction in the cell.
And set the collectionViewController as delegate. So you can pass values.
So you can create a function in the collection view controller and give it a param like a int 1 for cell 1.
If you have multiple buttons in the cell you should implement a delegate. Then, set your view controller as a delegate of the cell. Sample implementation of such a delegate could look like:
protocol YourCustomCellDelegate {
func firstButtonPressed(cell: YourCustomCell)
func secondButtonPressed(cell: YourCustomCell)
}
class YourCustomCell : UICollectionViewCell {
var delegate:YourCustomCellDelegate?
@IBOutlet weak var firstButton: UIButton!
@IBOutlet weak var secondButton: UIButton!
@IBAction func firstButtonTapped(sender: AnyObject) {
delegate?.firstButtonPressed(self)
}
@IBAction func secondButtonTapped(sender: AnyObject) {
delegate?.secondButtonPressed(self)
}
}
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