【发布时间】：2023-04-04 14:58:01
【问题描述】：
我的第一个表格视图单元格中有集合视图。表格视图顶部的搜索栏（表格视图外）。集合视图显示为表格视图单元格项目计数viewDidLoad()。例如。如果表格视图单元格项目计数为 4，则集合视图项目计数为 4。
class MainViewController: UIViewController, UITableViewDataSource, UITableViewDelegate,
UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
@IBOutlet weak var searchBar: UISearchBar!
@IBOutlet weak var mainTableView: UITableView!
var imageNames = [ImageNames]()
var priceFood: [Double]!
var searchFoods = [String]()
var filtered = [String]()
var searching = false
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.tabBarController?.tabBar.isHidden = false
}
override func viewDidLoad() {
super.viewDidLoad()
self.navigationController?.navigationBar.isHidden = true
let foodCell = Food(name: ["Hamburger big mac",
"Patates",
"Whopper",
"Steakhouse"], price: [15.0, 20.0, 25.0, 30.0])
searchBar.delegate = self
searchFoods = foodCell.name
priceFood = foodCell.price
imageNames = [
ImageNames(name: "images"),
ImageNames(name: "unnamed"),
ImageNames(name: "unnamed")
// ImageNames(name: "images"),
// ImageNames(name: "images")
]
}
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if searching {
return filtered.count
} else {
return searchFoods.count
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
let cell = tableView.dequeueReusableCell(withIdentifier: "MainFoodTableViewCell", for: indexPath) as! MainFoodTableViewCell
// cell.mainFoodCollectionView.delegate = self
// cell.mainFoodCollectionView.dataSource = self
// cell.mainFoodCollectionView.reloadData()
cell.mainFoodCollectionView.tag = indexPath.row
return cell
} else {
let cell = tableView.dequeueReusableCell(withIdentifier: "CellForFood", for: indexPath) as! MainFoodTitleTableViewCell
if searching {
cell.titleLabel?.text = filtered[indexPath.row]
cell.priceLabel?.text = priceFood[indexPath.row].description
} else {
cell.titleLabel?.text = searchFoods[indexPath.row]
cell.priceLabel?.text = priceFood[indexPath.row].description
}
return cell
}
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return indexPath.section == 0 ? 130 : 65
}
func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
return indexPath.section == 0 ? 100 : 65
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return imageNames.count
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
let width = UIScreen.main.bounds.width
return CGSize(width: width, height: 130)
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "MainFoodCollectionViewCell", for: indexPath) as! MainFoodCollectionViewCell
let img = imageNames[indexPath.row]
cell.mainFoodImage.image = UIImage(named: img.name)
return cell
}
}
extension MainViewController : UISearchBarDelegate {
func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
self.searchBar.showsCancelButton = true
}
func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
searching = false
searchBar.showsCancelButton = false
searchBar.text = ""
searchBar.resignFirstResponder()
mainTableView.reloadData()
}
我认为我对这个功能没有意义
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
filtered = searchText.isEmpty ? searchFoods : filtered.filter { (item: String) -> Bool in
return item.range(of: searchText, options: .caseInsensitive, range: nil, locale: nil) != nil
}
// filtered = self.searchFoods.filter ({$0.prefix(searchText.count) == searchText})
searching = true
mainTableView.reloadData()
}
}
【问题讨论】：
-
等等，你只是想隐藏收藏视图。如果是这样，只需使用 collectionView.isHidden = true
-
部分是的，但我怎样才能隐藏在
searchBar(:, textDidChange)方法中？ -
好吧，我还没有真正使用过搜索栏，但我猜你可以在搜索时把它放在那里 = true
-
如果我将集合单元格隐藏起来，它们的高度或大小与视图背景一起放置在那里:)
-
那我不确定。对不起:(
标签： ios swift uitableview uicollectionview