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indexPath.row在UICollectionView中重新加載

[英]indexPath.row reload in UICollectionView

我有一個3行的UICollectionViewController ,在第一個indexPath(0)中我想添加一個UIView 當我啟動應用程序時它可以工作,但當我進入另一個控制器並返回時, UIView在其他行中。 這是代碼:

override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
    let customCell = collectionView.dequeueReusableCellWithReuseIdentifier(customCellId, forIndexPath: indexPath) as! CustomCell
    customCell.nameLabel.text = "\(label2.text) \(materie[indexPath.row])"
    customCell.setupViews()
    if indexPath.row == 0 {
        customCell.setupUIView()
        customCell.nameLabel.text = ""
    }

    return customCell
}

當我啟動應用程序時,屏幕是:

啟動屏幕應用

當我進入另一個控制器並返回時,屏幕是:

屏幕

在另一個單元格中重復方形藍色的原因是因為collectionView正在重用相同的單元格。

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

    let customCell = ollectionView.dequeueReusableCellWithReuseIdentifier(customCellId, forIndexPath: indexPath) as! CustomCell

    // HERE YOU HAVE TO RESET THE CELL TO DEFAULT VALUES
    // LIKE REMOVING THE BLUE SQUARE VIEW
    customCell.view2.removeFromSuperview()

    if indexPath.row == 0 {
        customCell.setupUIView()
        customCell.nameLabel.text = ""
    } else {   
        customCell.nameLabel.text = "\(label2.text) \(materie[indexPath.row])"
        customCell.setupViews()
    }

    return customCell
}

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