搜索不能在swift中工作

在我的應用程序中搜索不能正常工作，問題在於，我通過鍵入特定字母來搜索某個字符，但它沒有出現在collectionView中，它沒有用搜索到的項目重新載入collectionView 這裏是全班代碼搜索不能在swift中工作

class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, UISearchBarDelegate { 

@IBOutlet weak var searchBar: UISearchBar! 
@IBOutlet weak var collection: UICollectionView! 

var starWarsArray = [StarWars]() 
var searchedCharacters = [StarWars]() 

var searching = false 

override func viewDidLoad() { 
    super.viewDidLoad() 

    collection.delegate = self 
    collection.dataSource = self 

    searchBar.delegate = self 
    searchBar.returnKeyType = UIReturnKeyType.Done 

    parseStarWarsCSV() 
} 


func searchBarSearchButtonClicked(searchBar: UISearchBar) { 
    view.endEditing(true) 
} 

func searchBar(searchBar: UISearchBar, textDidChange searchText: String) { 
    if searchBar.text == nil || searchBar.text == "" { 
     searching = false 
     view.endEditing(true) 
     collection.reloadData() 
    } else { 
     searching = true 
     let lettersInSearch = searchBar.text!.lowercaseString 
     searchedCharacters = starWarsArray.filter({$0.name.lowercaseString.containsString(lettersInSearch) != nil}) 
     collection.reloadData() 
    } 
} 


func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { 

    if let cell = collection.dequeueReusableCellWithReuseIdentifier("StarWarsCell", forIndexPath: indexPath) as? StarWarsCell { 

     var starWars: StarWars! 

     if searching { 
      starWars = searchedCharacters[indexPath.row] 
      cell.configureCell(starWars) 
     }else { 
      starWars = starWarsArray[indexPath.row]//grab each item from the array 
      cell.configureCell(starWars) 
     } 
     return cell 
    }else { 
     return UICollectionViewCell() 
    } 
} 


func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int { 
    return 1 
} 

func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 
    if searching { 
     return searchedCharacters.count 
    } 
    return starWarsArray.count 
} 

func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize { 
    return CGSizeMake(110, 110) 
}

}

來源

2016-03-03 David Dume

使用

searchedCharacters = starWarsArray.filter({$0.name.lowerCaseString.containsString(lettersInSearch)})

來源

2016-03-03 10:22:03 techloverr

它不工作。 collectionView不會與搜索到的項目重新加載 –

請分享該類別的整體代碼 – techloverr

我發佈了代碼 –

搜索不能在swift中工作

回答

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