小编Kor*_*and的帖子

我在视图中有两个容器.顶部有一个集合视图.我想从下面的容器中点击按钮时从按钮更新我的集合视图.我的按钮也改变了我的集合视图使用的数组的值.

我以为didSet会做这个工作,但不幸的是没有用.

最佳:

class TopViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {

    @IBOutlet weak var favoritesCV: UICollectionView!

    var myFavorites = [] {
        didSet {
            self.favoritesCV.reloadData()
        }
    }


    override func viewDidAppear(animated: Bool) {
        myFavorites = favoritesInstance.favoritesArray
    }

    func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return myFavorites.count
    }

    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {

        let cell : FavoritesCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath) as! FavoritesCollectionViewCell

        var myPath = myFavorites[indexPath.row] as! String
        cell.myImage.image = UIImage(named: myPath)
        return cell
    }
 }

底部:

class …

我有两个控制器.第一个有一个带有书签按钮项目的导航栏,我按下它来显示我的第二个控制器,里面有一个tableview.

此链接的示例项目:http://www.koraybirand.co.uk/download/xcode/PopTest.zip

我希望能够选择一个单元格然后关闭弹出视图.

另一个奇怪的行为是,第一个单元格显示一个警报视图控制器,它可以在iPhone上正常工作,但在iPad上,弹出窗口会突然调整到alerviewcontroller的大小.

这是我的主视图控制器:

class ViewController: UIViewController, UIPopoverPresentationControllerDelegate {

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "popoverSegue" {

        let popoverViewController = segue.destinationViewController as! UIViewController
        popoverViewController.modalPresentationStyle = UIModalPresentationStyle.Popover
        popoverViewController.popoverPresentationController!.delegate = self
    }
}

func adaptivePresentationStyleForPresentationController(controller: UIPresentationController) -> UIModalPresentationStyle {
    return UIModalPresentationStyle.None
}


} …