Question

我正在制作一个应用程序，其中有一个酒店数据库，其中包含（h_name，h_address，h_tariff，h_phone和h_latitude以及h_longitude以在地图上显示该酒店）。

所以，这是交易！我使用PHP Web服务成功检索了json编码中的酒店名称，它们在我的tableview单元格中可见。但是，我需要的是，当用户点击其中一家酒店然后打开一个新视图（特别是详细视图控制器），其中包含酒店详细信息和地图视图。而且，我想在该特定酒店的详细视图控制器中获取酒店名称，地址，关税和电话详细信息，我还想使用纬度和经度绘制地图视图中的酒店位置。

这是我如何检索酒店详细信息的挑战。这是ViewControllers代码：

import UIKit

class HotelViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

@IBOutlet weak var hotelTableView: UITableView!

// Table Data

var hotelArray:[String] = [String]()

var selectedHotel:String?

var hotelName:String?
var hotelAddress:String?

override func viewDidLoad() {
super.viewDidLoad()

// Do any additional setup after loading the view.

// Set view controller as delegate of tableview
self.hotelTableView.delegate = self
self.hotelTableView.dataSource = self

// Get current hotels
self.retrieveHotels("")

 }

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

 }


func retrieveHotels(latestHotel:String) {

// Specify the URL of our retrieval web service
let url:NSURL = NSURL(string: "http://localhost/localHotelsSearch.php")!

// Create a NSURLSession task with completion handler

let task:NSURLSessionDataTask = NSURLSession.sharedSession().dataTaskWithURL(url, completionHandler: { (data:NSData!, response:NSURLResponse!, error:NSError!) -> Void in

    // Convert the json data into an array

let dataArray:[AnyObject] = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: nil) as [AnyObject]

    // Clear the hotel array
    self.hotelArray.removeAll(keepCapacity: false)

    // Loop through each dictionary in the array
    for data in dataArray {

        let dictionary:[String:String] = data as [String:String]

        // Append it to the hotel array
        if dictionary["h_name"] != nil {
            self.hotelArray.append(dictionary["h_name"]!)
        }
    }

    dispatch_async(dispatch_get_main_queue()) {

        // Refresh the table
        self.hotelTableView.reloadData()
    }

})

// Run the task
task.resume()
 }

// MARK: - Tableview Delegate Methods

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

// Get a cell

let cell:UITableViewCell = tableView.dequeueReusableCellWithIdentifier("hotelCell") as UITableViewCell


// Configure the cell

cell.textLabel?.text = hotelArray[indexPath.row]

// Return the cell
return cell
 }

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

return self.hotelArray.count

 }

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

// Keep track of which article the user selcted

self.selectedHotel = self.hotelArray[indexPath.row]

// trigger the segue to go to the detail view
//  self.performSegueWithIdentifier("toHotelDetailViewSegue", sender: self)
}



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

// Get reference to destination view controller

let detailHVC = segue.destinationViewController as HotelDetailViewController

let myIndexPath = self.hotelTableView.indexPathForSelectedRow()
let row = myIndexPath?.row

// Pass along the selected articles

detailHVC.hotelToDisplay = self.selectedHotel

 }

}

此外，这是详细视图控制器的代码：

import UIKit
import MapKit

class HotelDetailViewController: UIViewController {

var hotelToDisplay:String?

@IBOutlet weak var hName_dv: UILabel!

@IBOutlet weak var hAddress_dv: UILabel!

@IBOutlet weak var hTariff_dv: UILabel!

@IBOutlet weak var hContact_dv: UILabel!


override func viewDidLoad() {
super.viewDidLoad()

// Do any additional setup after loading the view.
 }

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

 }

}

Answer 1

您似乎没有用于存储酒店数据的酒店对象，因此您现在只需将酒店名称添加到数据阵列。

创建酒店类文件

class Hotel {
    var name : String? 
    var latitude : Double?

    // etc.
}

然后在您的数据方法中，将Hotel对象添加到数据数组

// Loop through each dictionary in the array
for data in dataArray {

    let dictionary:[String:String] = data as [String:String]

    // Append it to the hotel array
    if dictionary["h_name"] != nil {

        // *You are only adding the hotel NAME to your data array here
        // The other data in the dictionary is not being used, Instead capture all of the data you require from your request

       var h = Hotel()
       h.name = dictionary["h_name"]!
       h.latitude = dictionary["h_latitude"]!

       self.hotelArray.append(h)
    }
}

然后使用hotelarray填充新的ViewController

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

// Get reference to destination view controller

let detailHVC = segue.destinationViewController as HotelDetailViewController

let myIndexPath = self.hotelTableView.indexPathForSelectedRow()
let row = myIndexPath?.row

// Pass along the selected data, you will need to create these variables in your HotelDetailViewController as well in order to set them
   let hotelToPass = self.hotelArray[row]
   detailHVC.hotelToDisplay = hotelToPass
   detailHVC.hotelName = hotelToPass.name
   detailHVC.hotelLatitude = hotelToPass.latitude 

 }

在详细视图控制器中显示数据

1 个答案: