如何将数据从一个视图控制器传递到另一个SWIFT

我正在制作一个应用程序，其中带有搜索栏和范围栏的表视图必须继承到详细视图控制器，并且该详细视图控制器必须基于哪个单元格被选中。我有一个数组，其结构设置为排序和搜索项目。我需要保持这个功能，我有另一个我的详细信息视图控制器的swift类，我将把if/else语句放入显示基于我选择的单元格的数据的处理中。我需要知道如何做的是将一个变量附加到单元格中，并将该变量传递给详细视图控制器以在我的if/else语句中使用，以便我可以显示数据。如果这不是这样做的正确方法，请让我知道。如何将数据从一个视图控制器传递到另一个SWIFT

结构代码

struct Booth { 
    let category : String 
    let name : String 
}

表视图控制器代码

import UIKit 

class BoothsTableViewController: UITableViewController {  

var booths = [Booth]() 
var filteredBooths = [Booth]() 

override func viewDidLoad() { 
    super.viewDidLoad() 

    //fill array with data 
    self.booths = [Booth(category: "Tech", name: "Conference App"), 
     Booth(category: "Tech", name: "Space Shooter"), 
     Booth(category: "Tech", name: "RollABall"), 
     Booth(category: "Animation", name: "Sugar Hill City Model"), 
     Booth(category: "Animation", name: "3D Sculpting 101"), 
     Booth(category: "Animation", name: "HowTo - Texture"), 
     Booth(category: "Science", name: "AP Biology for Dummies"), 
     Booth(category: "Science", name: "Cells"), 
     Booth(category: "Science", name: "Space")] 

    //reload the table 
    self.tableView.reloadData() 
} 

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
    if tableView == self.searchDisplayController!.searchResultsTableView { 
     return self.filteredBooths.count 
    } else { 
     return self.booths.count 
    } 
} 

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 
    //ask for a reusable cell from the tableview, the tableview will create a new one if it doesn't have any 
    let cell = self.tableView.dequeueReusableCellWithIdentifier("Cell") as UITableViewCell 

    var boothsCheck : Booth 
    // Check to see whether the normal table or search results table is being displayed and set the Booth object from the appropriate array 
    if tableView == self.searchDisplayController!.searchResultsTableView { 
     boothsCheck = filteredBooths[indexPath.row] 
    } else { 
     boothsCheck = booths[indexPath.row] 
    } 

    // Configure the cell 
    cell.textLabel.text = boothsCheck.name 
    cell.accessoryType = UITableViewCellAccessoryType.DisclosureIndicator 

    return cell 
} 

func filterContentForSearchText(searchText: String, scope: String = "All") { 
    self.filteredBooths = self.booths.filter({(Booth : Booth) -> Bool in 
     var categoryMatch = (scope == "All") || (Booth.category == scope) 
     var stringMatch = Booth.name.rangeOfString(searchText) 
     return categoryMatch && (stringMatch != nil) 
    }) 
} 

func searchDisplayController(controller: UISearchDisplayController!, shouldReloadTableForSearchString searchString: String!) -> Bool { 
    let scopes = self.searchDisplayController!.searchBar.scopeButtonTitles as [String] 
    let selectedScope = scopes[self.searchDisplayController!.searchBar.selectedScopeButtonIndex] as String 
    self.filterContentForSearchText(searchString, scope: selectedScope) 
    return true 
} 

func searchDisplayController(controller: UISearchDisplayController!, 
    shouldReloadTableForSearchScope searchOption: Int) -> Bool { 
     let scope = self.searchDisplayController!.searchBar.scopeButtonTitles as [String] 
     self.filterContentForSearchText(self.searchDisplayController!.searchBar.text, scope: scope[searchOption]) 
     return true 
} 

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) { 
    self.performSegueWithIdentifier("BoothDetail", sender: tableView) 
} 

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { 

    if segue.identifier == "BoothDetail" { 

     let BoothDetailViewController = segue.destinationViewController as UIViewController 


     if sender as UITableView == self.searchDisplayController!.searchResultsTableView { 
      let indexPath = self.searchDisplayController!.searchResultsTableView.indexPathForSelectedRow()! 
      let destinationTitle = self.filteredBooths[indexPath.row].name 
      BoothDetailViewController.title = destinationTitle 


    } else { 

      let indexPath = self.tableView.indexPathForSelectedRow()! 
      let destinationTitle = self.booths[indexPath.row].name 
      BoothDetailViewController.title = destinationTitle 
      } 
     } 
    } 
}

Segue公司代码

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { 

    if segue.identifier == "BoothDetail" { 

     let BoothDetailViewController = segue.destinationViewController as UIViewController 


     if sender as UITableView == self.searchDisplayController!.searchResultsTableView { 
       let indexPath = self.searchDisplayController!.searchResultsTableView.indexPathForSelectedRow()! 
       let destinationTitle = self.filteredBooths[indexPath.row].name 
       BoothDetailViewController.title = destinationTitle   
     } else {    
       let indexPath = self.tableView.indexPathForSelectedRow()! 
       let destinationTitle = self.booths[indexPath.row].name 
       BoothDetailViewController.title = destinationTitle 
      } 
     } 
    } 
}

来源

2014-10-30 user3558131