[英]How can I have multiple Collection Views in one View Controller?
我希望一個View Controller具有七個水平按鈕滾動。 我已經設置了第一個“集合視圖”,並且直接在其下面重復了第二個“集合視圖”的確切過程,但是我一直收到線程1:SIGABRT錯誤。 我的功能集合視圖代碼在這里:
class xyViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
var tableImages: [String] = ["1.png", "2.png", "3.png", "4.png", "5.png", "6.png"]
override func viewDidLoad() {
// Initialize the collection views, set the desired frames
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return tableImages.count
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell:xyCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! xyCollectionViewCell
cell.xyImgCell.image = UIImage(named: tableImages[indexPath.row])
return cell
}
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
println("cell \(indexPath.row) selected")
}
}
當我運行它時,它起作用。
因此,當我在下面添加第二個Collection View時,將新的View Controller文件創建到IBOutlet按鈕的圖像,並創建一個新的Collection View Cell文件以添加以下代碼,它將崩潰。
class bwViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
var bwTableImages: [String] = ["a", "PlasmaBlast.png", "b.png", "c.png", "d.png", "e.png", "f.png", "g.png", "h.png", "i.png", "j.png"]
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return bwTableImages.count
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let cell:bwCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("cell1", forIndexPath: indexPath) as! bwCollectionViewCell
cell.bwImgCell.image = UIImage(named: bwTableImages[indexPath.row])
return cell
}
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
println("cell \(indexPath.row) selected")
}
}
這是您編寫的代碼的兩部分版本。 我不確定它是否解決了您所看到的錯誤,但是這是您在一頁上執行多個集合視圖的方式。
class xyViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
var tableImagesOne: [String] = ["1.png", "2.png", "3.png", "4.png", "5.png", "6.png", "7.png", "8.png"]
var tableImagesTwo: [String] = ["1.png", "2.png", "3.png", "4.png", "5.png"]
override func viewDidLoad() {
// Initialize the collection views, set the desired frames
}
func numberOfSectionsInCollectionView(_ collectionView: UICollectionView) -> Int {
return 2
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
if section == 0 {
return tableImagesOne.count
}
else {
return tableImagesTwo.count
}
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let row = indexPath.row
let section = indexPath.section
let cell:xyCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("cell", forIndexPath: indexPath) as! xyCollectionViewCell
if section == 0 {
cell.xyImgCell.image = UIImage(named: tableImagesOne[row])
}
else if section == 1 {
cell.xyImgCell.image = UIImage(named: tableImagesTwo[row])
}
return cell
}
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
println("cell \(indexPath.section) : \(indexPath.row) selected")
}
}
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