问题
I implemented a CollectionView in a TableViewCell but I need read dynamic data for set cells on CollectionView.
I can read data on extension from class TableViewCell, maybe can help me pass data from ViewController to the class TableViewCell.
class MultipleTableViewCell: UITableViewCell {
@IBOutlet fileprivate weak var collectionView: UICollectionView!
}
extension MultipleTableViewCell : UICollectionViewDataSource {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 3 // array.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "foodCell", for: indexPath) as! UserCollectionViewCell
let dict = array.object(at: indexPath.row) as! NSDictionary //Like this
cell.name.text = "How do you read data from ViewController"
cell.email.text = "How do you read data from ViewController"
cell.phone.text = dict["phone"] as? String //Like this
cell.image.image = "How do you read data from ViewController"
return cell
}
}
extension MultipleFoodTableViewCell : UICollectionViewDelegateFlowLayout {
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
let itemsPerRow:CGFloat = 1
let hardCodedPadding:CGFloat = 20
let itemWidth = (collectionView.bounds.width / itemsPerRow) - hardCodedPadding
let itemHeight = collectionView.bounds.height - (2 * hardCodedPadding)
return CGSize(width: itemWidth, height: itemHeight)
}
}
回答1:
The simplest way is create one method inside your MultipleTableViewCell with datasource array that you want to fill with CollectionView. Now call this method in cellForRowAt method of TableView.
class MultipleTableViewCell: UITableViewCell {
@IBOutlet fileprivate weak var collectionView: UICollectionView!
var array = [String]() //Change with Your array type
func fillCollectionView(with array: [String]) {
self.array = array
self.collectionView.reloadData()
}
}
Now call this method in cellForRowAt and pass the datasource array for collectionView.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
let cell = tableView.dequeueReusableCell(withIdentifier: "CellIdentifier") as! MultipleTableViewCell
cell.fillCollectionView(with: ["A","B","C"]) //Pass your array
return cell
}
来源：https://stackoverflow.com/questions/42651196/how-pass-data-to-an-uicollectionview-embedded-in-a-tableviewcell-xcode-ios