我正在製作一個應用程序,其中帶有搜索欄和範圍欄的表視圖必須繼承到詳細視圖控制器,並且該詳細視圖控制器必須基於哪個單元格被選中。我有一個數組,其結構設置爲排序和搜索項目。我需要保持這個功能,我有另一個我的詳細信息視圖控制器的swift類,我將把if/else語句放入顯示基於我選擇的單元格的數據的處理中。我需要知道如何做的是將一個變量附加到單元格中,並將該變量傳遞給詳細視圖控制器以在我的if/else語句中使用,以便我可以顯示數據。如果這不是這樣做的正確方法,請讓我知道。如何將數據從一個視圖控制器傳遞到另一個SWIFT
結構代碼
struct Booth {
let category : String
let name : String
}
表視圖控制器代碼
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公司代碼
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
}
}
}
}
是的,謝謝,事情是我不知道如何傳遞它@Rick – user3558131 2014-10-30 20:25:58
只需在詳細視圖中創建一個變量,您可以在創建'DetailViewController'後設置變量,就像你一樣與標題做。 – Rick 2014-10-30 20:27:08