[英]How can I have multiple Collection Views in one View Controller?
I want one View Controller to have seven horizontal button scrolls. 我希望一个View Controller具有七个水平按钮滚动。 I've set up the first Collection View, and I repeated the exact process for a second Collection View directly underneath, but I keep getting Thread 1: SIGABRT error.
我已经设置了第一个“集合视图”,并且直接在其下面重复了第二个“集合视图”的确切过程,但是我一直收到线程1:SIGABRT错误。 My code for the functional Collection View is here:
我的功能集合视图代码在这里:
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")
}
}
It works when I run this. 当我运行它时,它起作用。
So when I add a second Collection View underneath, create a new View Controller file to IBOutlet the button's image and a new Collection View Cell file to add the following code, it crashes. 因此,当我在下面添加第二个Collection View时,将新的View Controller文件创建到IBOutlet按钮的图像,并创建一个新的Collection View Cell文件以添加以下代码,它将崩溃。
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")
}
}
Here is a two-section version of the code you wrote. 这是您编写的代码的两部分版本。 I'm not sure if it addresses the error you are seeing, but it's how you'd do multiple collection views on one page.
我不确定它是否解决了您所看到的错误,但是这是您在一页上执行多个集合视图的方式。
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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