将数据从 Tableview 传递到 Tableview 详细信息

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【中文标题】将数据从 Tableview 传递到 Tableview 详细信息【英文标题】:Pass data from Tableview to Tableview Detail 【发布时间】:2016-04-05 23:25:48 【问题描述】:

我有两个表格视图。第一个将显示 6 个城市,第二个(详细表格视图)将根据第一个表格视图上选择的单元格显示详细信息。我为每个城市创建 6 个数组。每次用户选择第一个 tableview 上的一个城市,我想用相应的数组来填充第二个视图控制器。所以我的问题是如何使用 prepareforsegue 实现它。

 //First tableview as initial view 



 import UIKit
 import  Alamofire
 import SwiftyJSON

 class LandingPageTableViewController: UITableViewController 

@IBOutlet var tableview: UITableView!


//predfined array to to holde the data below

var city = [String]()
var subtitle = [String]()
var image = [String]()

//arrays to hold avaible buildings in the city

var brickellBuildings     = [[String:AnyObject]]()//
var miamiBuilBuildings    = [[String:AnyObject]]()
var miamiBeachBuildings   = [[String:AnyObject]]()//
var coconotGroveBuildins  = [[String:AnyObject]]()//
var corolGbalesBuilduings = [[String:AnyObject]]()
var dowtownMiamiBuildings = [[String:AnyObject]]()//
var southBeachBuildings   = [[String:AnyObject]]()



override func viewDidLoad() 
    super.viewDidLoad()

    // Uncomment the following line to preserve selection between   presentations
    // self.clearsSelectionOnViewWillAppear = false

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem()

    tableview.showsHorizontalScrollIndicator = false
    tableview.showsVerticalScrollIndicator = false
    tableview.dataSource =   self
    tableview.delegate   =   self


city = ["Miami","Brickell","Miami Beach","Down town Miami","South Beach","Corol Gables","Coconut Grove"]


    subtitle = ["The fab and glam life "," Condos on the highrise","Don't call a comeback","Come on feel the noise ","Push it to the limit","Push it to the limit","Push it to the limit"]

    image = ["Miami","brickell","miami_beach","downtown_miami","south_beach","coral_gables","coconut_grove"]





override func viewDidAppear(animated: Bool) 
    super.viewWillAppear(true)

    runRequestForbrickell()
    runRequestForMiamiBeach()
    runRequestForcocotGrove()
    runRequestForMiami()






   func runRequestForbrickell() 

    Alamofire.request(.GET, "http://android.goidx.com/condos/?tag=brickell&user_id=4").validate().responseJSON  response in

        if let value  = response.result.value 
            let json = JSON(value)

            if let resData = json.arrayObject 

                self.brickellBuildings = resData as! [[String:AnyObject]]

                // print(resData)
            

            if self.brickellBuildings.count > 0 

                self.tableview.reloadData()
            
            
            
            

     func runRequestForMiamiBeach() 


    Alamofire.request(.GET, "http://android.goidx.com/condos/?tag=south beach&user_id=4").validate().responseJSON  response in

        if let value  = response.result.value 
            let json = JSON(value)

            if let resData = json.arrayObject 

                self.miamiBeachBuildings = resData as! [[String:AnyObject]]

                // print(resData)
            

            if self.miamiBeachBuildings.count > 0 

                self.tableview.reloadData()
            

           
           
           


     func runRequestForcocotGrove() 

Alamofire.request(.GET, "http://android.goidx.com/condos/?tag=coconut%20grove&user_id=4").validate().responseJSON  response in

    if let value  = response.result.value 
        let json = JSON(value)

        if let resData = json.arrayObject 

            self.coconotGroveBuildins = resData as! [[String:AnyObject]]

            // print(resData)
        

        if self.coconotGroveBuildins.count > 0 

            self.tableview.reloadData()
        
       
      
      



       func runRequestForMiami() 

Alamofire.request(.GET, "http://android.goidx.com/condos/?tag=downtown miami&user_id=4").validate().responseJSON  response in

    if let value  = response.result.value 
        let json = JSON(value)

        if let resData = json.arrayObject 

            self.miamiBuilBuildings = resData as! [[String:AnyObject]]

            // print(resData)
        

        if self.miamiBuilBuildings.count > 0 

            self.tableview.reloadData()
        
        
        
        



override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) 
    if let identifier = segue.identifier 

        switch identifier 


        case "showbuildings":
            let buildingdDetailVC = segue.destinationViewController as! CtiesTableViewController

            if let indexpath = self.tableview.


            

        default: break



        
        
        


override func didReceiveMemoryWarning() 
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.


// MARK: - Table view data source

override func numberOfSectionsInTableView(tableView: UITableView) -> Int 
    // #warning Incomplete implementation, return the number of sections
    return 1
   

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int 
    // #warning Incomplete implementation, return the number of rows
    return city.count
    


override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell 
    let cell = tableView.dequeueReusableCellWithIdentifier("Celllanding", forIndexPath: indexPath) as! LandingTableViewCell


    let holder_city = city[indexPath.row]
    let holder_subtitle = subtitle[indexPath.row]
    cell.citynamelabel.text? = holder_city
    cell.descriptionHolder.text? = holder_subtitle


    cell.imageCity.image = UIImage(named: image[indexPath.row])

    return cell
     



/*
// Override to support conditional editing of the table view.
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool 
    // Return false if you do not want the specified item to be editable.
    return true

*/

/*
// Override to support editing the table view.
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) 
    if editingStyle == .Delete 
        // Delete the row from the data source
        tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
     else if editingStyle == .Insert 
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
        
     
*/

/*
// Override to support rearranging the table view.
override func tableView(tableView: UITableView, moveRowAtIndexPath fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath) 

      
*/

/*
// Override to support conditional rearranging of the table view.
override func tableView(tableView: UITableView, canMoveRowAtIndexPath indexPath: NSIndexPath) -> Bool 
    // Return false if you do not want the item to be re-orderable.
    return true
    
*/

/*
// MARK: - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) 
    // Get the new view controller using segue.destinationViewController.
    // Pass the selected object to the new view controller.
     
*/


override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat 
    return 300.0
     



     









  //Second tableview as a detail tableview 





    import UIKit
    import  Alamofire
    import SwiftyJSON

    class CtiesTableViewController: UITableViewController 

@IBOutlet var tableview: UITableView!


var images = [String] ()



    // Strings to store the data passed from the first tableview 
    var datareceiver1: String = "" 
    var datareceiver2: String = ""
    var datareceiver3: String = ""
    var datareceiver4: String = ""
    var datareceiver5: String = ""

    // array of dictionary to append the data received from first tableview 
    var Data1 = [[String:AnyObject]]() //Array of dictionary
    var Data2 = [[String:AnyObject]]() //Array of dictionary
    var Data3 = [[String:AnyObject]]() //Array of dictionary
    var Data4 = [[String:AnyObject]]() //Array of dictionary
    var Data5 = [[String:AnyObject]]() //Array of dictionary
    var Data6 = [[String:AnyObject]]() //Array of dictionary


func refresh(sender:AnyObject)

    // Updating your data here...

    self.tableView.reloadData()
    self.refreshControl?.endRefreshing()



    override func viewDidLoad() 
    super.viewDidLoad()

    // Uncomment the following line to preserve selection between presentations
    // self.clearsSelectionOnViewWillAppear = false

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.

    self.refreshControl?.addTarget(self, action: "refresh:", forControlEvents: UIControlEvents.ValueChanged)
    refreshControl!.backgroundColor = UIColor.grayColor()
    refreshControl!.tintColor = UIColor.whiteColor()

    // self.navigationItem.rightBarButtonItem = self.editButtonItem()



        


override func didReceiveMemoryWarning() 
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.

       



    override func viewWillAppear(animated: Bool) 


    super.viewWillAppear(animated)

    tableview.showsHorizontalScrollIndicator = false
    tableview.showsVerticalScrollIndicator = false
    tableview.dataSource =   self
    tableview.delegate   =   self


    self.tableview.rowHeight = 300.0



    


// MARK: - Table view data source

     override func numberOfSectionsInTableView(tableView: UITableView) -> Int 
    // #warning Incomplete implementation, return the number of sections
    return 1


    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int 
    // #warning Incomplete implementation, return the number of rows
    //print(uniq(data).count)
   //return (uniq(data1).count)

    return Data.count




    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell 
    let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! PlacesTableViewCell

    // Configure the cell...




    return cell
    


    

【问题讨论】:

【参考方案1】:

在第一个TableViewController中声明一个变量来保存要传递的数组和overrideUITableViewDelegatedidSelectRowAtIndexPath方法

var arrayToBePassed: YourType?
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) 
    switch indexPath.row 
    case 0:
         arrayToBePassed = yourArray

    default:
         break
    
    self.performSegueWithIdentifier("showbuildings", sender: self)

这将调用prepareForSegue 方法。现在声明你提到的数组类型的var,在第二个UITableViewController 并修改prepareForSegue

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) 
   switch identifier 
        let buildingdDetailVC = segue.destinationViewController as! CtiesTableViewController
        buildingdDetailVC.arrayInSecondTVC = arrayToBePassed

    default:
        break
    

PS:请确保您不是overriding didDeselectRowAtIndexPath,因为这是一个常见的错误。

【讨论】:

当你说你的数组时。你说的是secondview中的数组吗? yourArray 是包含您在第一个 UITableViewController 中选择的行的详细信息的数组。在didSelectRowAtIndexPath 中,它被复制到另一个相同类型的公共数组中,即arrayToBePassedarrayInSecondTVC 是要在第二个 TableViewController 类中声明的数组,在第一个控制器的 prepareForSegue 中,您将使用所选行的详细信息填充此数组。

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