问题
I have the collectionView as my tableview header. Now I need to change the cells of the tableView depending on the cell I choose from the collection view. How do I do this from didselect of the collectionview?
This is my tableview:
extension DeliveryTimeVC: UITableViewDelegate, UITableViewDataSource {
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return sortedTimeFrom.count
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
// print("Section \(indexPath.section), Row : \(indexPath.row)")
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: Identifiers.DeliveryTimeCell, for: indexPath) as! DeliveryTimeCell
cell.configureCell(timeFrom: sortedTimeFrom[indexPath.row], timeTo: sortedTimeTo[indexPath.row])
return cell
}
}
And this is my collectionView:
extension DeliveryTimeVC : UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return sortedDates.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: Identifiers.DeliveryDateCell, for: indexPath) as! DeliveryDateCell
cell.configureCell(date: sortedDates[indexPath.row], day: sortedDay[indexPath.row])
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: Identifiers.DeliveryDateCell, for: indexPath) as! DeliveryDateCell
}
and this is how I call the header:
override func viewDidLoad() {
super.viewDidLoad()
tableView.tableHeaderView = collectionView
tableView.tableFooterView = UIView()
}
here is my sortedTimeFrom:
var sortedTimeFrom: [Date] = {
let today = Date()
var sortedTime: [Date] = []
var calender = Calendar(identifier: .iso8601)
calender.locale = Locale(identifier: "en_US_POSIX")
let currentHour = calender.component(.hour, from: today)
(0...(24-currentHour)).forEach {
guard let newDate = calender.date(byAdding: .hour, value: $0, to: today),
calender.component(.hour, from: newDate) >= 10
&& calender.component(.hour, from: newDate) <= 22
&& calender.component(.hour, from: newDate) != 0
&& calender.component(.hour, from: newDate) >= (currentHour+3) else {
return
}
//convert date into desired format
sortedTime.append(newDate)
}
return sortedTime
}()
回答1:
Disclaimer: typed in browser, not tested in Xcode.
Create a property inside DeliveryTimeVC:
var dataSource: [Date] = []
override func viewDidLoad() {
super.viewDidLoad()
dataSource = sortedTimeFrom
///... other stuff
}
Then, inside your tableView dataSource methods access that value:
extension DeliveryTimeVC: UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dataSource.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: Identifiers.DeliveryTimeCell, for: indexPath) as! DeliveryTimeCell
cell.configureCell(timeFrom: dataSource[indexPath.row], timeTo: sortedTimeTo[indexPath.row]
return cell
}
}
Finally, inside didSelect do something like this:
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
dataSource = sortedTimeAgain
tableView.reloadData()
}
来源：https://stackoverflow.com/questions/59255664/change-tableview-cells-by-choosing-different-cells-from-collectionview-which-is