CODEWITHSUNDEEP
iosjsonswiftsortingswift2
user7077886
user7077886

Reputation: 43

swift: Alphabetiz data being parsed from a JSON

I wrote my own function in Swift2 to parse a JSON. Once the JSON is parsed, a list of data that was pulled from the JSON is displayed in a tableView on my app. I am trying to figure out how to display this data in alphabetical order. I think this needs to happen somewhere before the append method I call in the function. I would imagine this needs to be a sort function but I have not been able to figure out the correct sort function in Swift2 that will execute this properly. Any help I can get is appreciated! Here is my parseJSON function:

 func parseJSON(){
    do{
        let data = NSData(contentsOfURL: NSURL(string: "https://jsonblob.com/api/jsonBlob/580d0ccce4b0bcac9f837fbe")!)

        let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers)

        for anItem in jsonResult as! [Dictionary<String, AnyObject>]{

            let mifiName2 = anItem["name"] as! String
            let mifiId = anItem["employeeId"] as! Int

            let newName = Name(mifiName: mifiName2, mifiId: mifiId)
            nameOfMifi.append(newName)
            //print("Name: \(newName)")

        }
    }
    catch let error as NSError{
        print(error.debugDescription)
    }
}

Upvotes: 1

Views: 40

Answers (1)

Nirav D
Nirav D

Reputation: 72410

You need to sort your array after all the object is append in Array means after the for loop.

for anItem in jsonResult as! [Dictionary<String, AnyObject>]{

    let mifiName2 = anItem["name"] as! String
    let mifiId = anItem["employeeId"] as! Int

    let newName = Name(mifiName: mifiName2, mifiId: mifiId)
    nameOfMifi.append(newName)
    //print("Name: \(newName)")
}

//Now you need to sort your array on the basis of name like this
nameOfMifi.sortInPlace { $0.mifiName < $1.mifiName }

Edit: As @vadian suggested do not use NSData(contentsOfURL:) because it will block your UI, so batter to use NSURLSession like this.

let session = NSURLSession.sharedSession()
let url = NSURL(string: "https://jsonblob.com/api/jsonBlob/580d0ccce4b0bcac9f837fbe")!
var task = session.dataTaskWithURL(url, completionHandler: {
    (data, response, error) -> Void in
    if error != nil {
        return
    }

    if let jsonResult = try? NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers) as? [Dictionary<String, AnyObject>] {

        for anItem in jsonResult {

            let mifiName2 = anItem["name"] as! String
            let mifiId = anItem["employeeId"] as! Int

            let newName = Name(mifiName: mifiName2, mifiId: mifiId)
            nameOfMifi.append(newName)
            //print("Name: \(newName)")
        }
        //Now you need to sort your array on the basis of name like this
        nameOfMifi.sortInPlace { $0.mifiName < $1.mifiName } 

        //Now reload tableView on main thread.
        dispatch_async(dispatch_get_main_queue()) {
             self.tableView.reloadData()
        }
    }
})
task.resume()

Upvotes: 1

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