这就是我的表格视图的样子。每个单元格从.txt字符串输入文本
搜索过滤器工作正常。但是当我选择结果之一时“如何”将打印“你好”的内容。
我在想这可能是因为“Hello”被编程为第一个String，所以单击时它始终是第一个单元格的结果。我需要帮助弄清楚搜索结果如何链接到它自己的内容。如果那有意义的话？
这是下面的代码。该代码从.txt文件膨胀读取，然后搜索文本文件。单击时结果不匹配。
导入UIKit
class title_ViewController: UITableViewController, UISearchResultsUpdating {
var SongTitle = [String]()
var SongLyrics = [LText]()
var filteredSongs = [String]()
var resultSearchController = UISearchController()
override func viewDidLoad() {
super.viewDidLoad()
self.resultSearchController = UISearchController(searchResultsController: nil)
self.resultSearchController.searchResultsUpdater = self
self.resultSearchController.dimsBackgroundDuringPresentation = false
self.resultSearchController.searchBar.sizeToFit()
self.tableView.tableHeaderView = self.resultSearchController.searchBar
self.tableView.reloadData()
if let path = NSBundle.mainBundle().pathForResource("DataBase", ofType: "txt"){
do {
let stringFromFile = try String(contentsOfFile:path, encoding: NSUTF8StringEncoding)
var Title: [String] = stringFromFile.componentsSeparatedByString("@")
Title.removeAtIndex(0)
//Seperates the Title from the Lyrics
var t1 = Array(Title[0].componentsSeparatedByString("^"))
t1.removeAtIndex(0)
SongTitle = Title
SongLyrics = [LText(LyricsText: t1)]
}catch{
print(error)
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if self.resultSearchController.active{
return self.filteredSongs.count
}else{
return self.SongTitle.count
}
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let Cell: AnyObject = self.tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath)
Cell.textLabel?!.text = SongTitle[indexPath.row]
if self.resultSearchController.active{
Cell.textLabel?!.text = self.filteredSongs[indexPath.row]
}else{
Cell.textLabel?!.text = self.SongTitle[indexPath.row]
}
return Cell as! UITableViewCell
}
func updateSearchResultsForSearchController(searchController: UISearchController) {
self.filteredSongs.removeAll(keepCapacity: false)
let searchPredicate = NSPredicate(format: "SELF CONTAINS[c]%@", searchController.searchBar.text!)
let array = (self.SongTitle as NSArray).filteredArrayUsingPredicate(searchPredicate)
self.filteredSongs = array as! [String]
self.tableView.reloadData()
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let indexPath: NSIndexPath = self.tableView.indexPathForSelectedRow!
let DestViewController = segue.destinationViewController as! ViewController
DestViewController.LyricString = SongTitle[indexPath.row]
}
}
欢迎任何帮助，在此先感谢。
最佳答案
问题出在您的prepareForSegue上。您需要对其进行修改以测试searchController是否处于 Activity 状态。如果是这样，则应该使用filteredSongs来确定将哪首歌曲传递到目标VC，而不是SongTitle:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let indexPath: NSIndexPath = self.tableView.indexPathForSelectedRow!
let DestViewController = segue.destinationViewController as! ViewController
if self.resultSearchController.active {
DestViewController.LyricString = self.filteredSongs[indexPath.row]
}else{
DestViewController.LyricString = self.SongTitle[indexPath.row]
}
}
(顺便说一句，约定变量名应以小写字母开头-
songTitle而不是SongTitle等。)