[英]Search Bar on TableView Does not Work
我正在尝试将搜索栏添加到一个简单的表视图中,该视图由7个名称单元格和每个名称的小描述组成。
如图中所示:
我在名为Business的swift文件中创建了一个类,它有两个属性:Name和Des。
这是视图控制器中的代码:
class FirstViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
@IBOutlet weak var TableView: UITableView!
var B = [Business]() //candies
var filteredNames = [Business]()
let searchController = UISearchController(searchResultsController: nil)
func filterContentForSearchText(searchText: String, scope: String = "All") {
filteredNames = B.filter { Bu in
return Bu.Name.lowercaseString.containsString(searchText.lowercaseString)
}
TableView.reloadData()
}
override func viewDidLoad() {
super.viewDidLoad()
B = [
Business(Name:"Mariah", Des:"I'm Here to help"),
Business(Name:"Nada", Des:"Hi"),
Business(Name:"Atheer", Des:"Hello"),
Business(Name:"Lojian", Des:"I can Help you"),
Business(Name:"Nadya", Des:"Hayat"),
Business(Name:"Omnia", Des:"Yahoo"),
Business(Name:"Eman", Des:"I have amazing stuff"),
Business(Name:"Amani", Des:"Yess")
]
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation = false
definesPresentationContext = true
TableView.tableHeaderView = searchController.searchBar
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if searchController.active && searchController.searchBar.text != "" {
return filteredNames.count
}
return B.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.TableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! CellTableViewCell
cell.NameLabel.text = B[indexPath.row].Name
cell.DescriptionLabel.text = B[indexPath.row].Des
let Bu: Business
if searchController.active && searchController.searchBar.text != "" {
Bu = filteredNames[indexPath.row]
} else {
Bu = B[indexPath.row]
}
cell.accessoryType = UITableViewCellAccessoryType.DisclosureIndicator
return cell
}
}
extension FirstViewController: UISearchResultsUpdating {
func updateSearchResultsForSearchController(searchController:
(UISearchController) {
filterContentForSearchText(searchController.searchBar.text!)
}
}
我按照本教程来做到这一点: https : //www.raywenderlich.com/113772/uisearchcontroller-tutorial
我不知道当我试图在模拟器中搜索结果总是第一个单元格时:玛丽亚
代码有什么问题?
您不使用搜索结果来填充单元格。 用这个替换你的cellForRowAtIndexPath
:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.TableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! CellTableViewCell
let Bu: Business
if searchController.active && searchController.searchBar.text != "" {
Bu = filteredNames[indexPath.row]
} else {
Bu = B[indexPath.row]
}
cell.NameLabel.text = Bu.Name
cell.DescriptionLabel.text = Bu.Des
cell.accessoryType = UITableViewCellAccessoryType.DisclosureIndicator
return cell
}
并且,不要使用大写首字母作为属性。
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