I have a JSON file like this.
{
"Team Name" : "Team",
"Images" : "images",
"Players" : [
{
"Number" : "61",
"Height" : "6'5\"",
"Position" : "P",
"DOB" : "Feb 22, 1989",
"First Name" : "Chris",
"Weight" : "210",
"Last Name" : "Shmoe",
"Bats" : "R",
"Throws" : "R"
},
{
"Number" : "54",
"Height" : "6'3\"",
"Position" : "P",
"DOB" : "Dec 31, 1982",
"First Name" : "Ronald",
"Weight" : "240",
"Last Name" : "Peter",
"Bats" : "R",
"Throws" : "R"
},
{
"Number" : "67",
"Height" : "6'4\"",
"Position" : "P",
"DOB" : "Sep 24, 1984",
"First Name" : "Scott",
"Weight" : "215",
"Last Name" : "Tim",
"Bats" : "R",
"Throws" : "R"
},
Heres What I have
var downloadFailed = false
var error: NSError? = nil
let navigationController = self.window!.rootViewController as! UINavigationController
let masterController = navigationController.childViewControllers[0] as! PlayerViewController
if let url = NSURL(string: " ") {
if let urlData = NSData(contentsOfURL: url) {
let jsonString = NSString(data: urlData, encoding: NSUTF8StringEncoding)
println(jsonString)
var result = NSJSONSerialization.JSONObjectWithData(urlData, options: NSJSONReadingOptions.allZeros, error: nil) as? NSDictionary
print("dictionary created")
if let players = result?.objectForKey("Players") as? [[String:AnyObject]]
{
for dictionary in players{
let fname = players["First Name"]
let lname = array["Players"]?["Last Name": String]
let number = array["Players"]?["Number"]
let position = array["Players"]?["Position"]
let bats = array["Players"]?["Bats"]?!.string
let throws = array["Players"]?["Throws"]?!.string
let height = array["Players"]?["Height"]?!.string
let weight = array["Players"]?["Weight"]?!.string
let DOB = array["Players"]?["DOB"]?!.string
masterController.objects.append(Players(fName: (fname as String?)!, lname: (lname as String?)!, position: (position as String?)!, bats: (bats as String?)!, throws: (throws as String?)!, height: (height as String?)!, weight: (weight as String?)!, DOB: (DOB as String?)!, number: (number as String?)!))}
Currently the only thing I think I dont have correct is I dont know how to make the code read in properly so that it uses the key "Players" and reads the correct information from the JSON file.
EDIT:
I have been working on it a bunch and have gotten this now I have very few errors just no keeps crashing at
if let dict = array as? [String: AnyObject]
But heres my new code for my load data function
func preloadData() {
var downloadFailed = false
var error: NSError? = nil
let navigationController = self.window!.rootViewController as! UINavigationController
let masterController = navigationController.childViewControllers[0] as! PlayerViewController
if let url = NSURL(string: "removed for reasons") {
if let urlData = NSData(contentsOfURL: url) {
if let array: AnyObject! = NSJSONSerialization.JSONObjectWithData(urlData, options: nil, error: &error)
{
print (array)
if let dict = array as? [String: AnyObject]
{
if let players = dict["Players"] as? [AnyObject]
{
for dictionary in players {
let fname = dictionary["First Name"]
let lname = dictionary["Last Name"]
let number = dictionary["Number"]
let position = dictionary["Position"]
let bats = dictionary["Bats"]
let throws = dictionary["Throws"]
let height = dictionary["Height"]
let weight = dictionary["Weight"]
let DOB = dictionary["DOB"]
masterController.objects.append(Players(fName: fname as! String, lname: lname as! String, position: position as! String, bats: bats as! String, throws: throws as! String, height: height as! String, weight: weight as! String, DOB: DOB as! String, number: number as! String))
}
}
}
//masterController.objects.sort({$0.courseNumber < $1.courseNumber})
}
else
{
downloadFailed = true
}
} else {
downloadFailed = true
}
} else {
downloadFailed = true
}
if downloadFailed {
let alert = UIAlertView(title: "Error", message: "Unable to download course data", delegate: nil, cancelButtonTitle: "OK")
alert.show()
}
}
I realise that the question is using Swift 2, but since there are no answers and everyone should be using Swift 3, here is the Swift 3 solution.
func preloadData(){
func failed(msg: String){
let alert = UIAlertController(title: "Error", message: msg, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil))
self.addChildViewController(alert)
}
guard let navigationController = self.window!.rootViewController as? UINavigationController else { failed(msg: "The root view controller is not a UINavigationController"); return }
guard let masterController = navigationController.childViewControllers[0] as? PlayerViewController else { failed(msg: "There is no PlayerViewController"); return }
guard let url = URL(string: "Whatever your URL is") else { failed(msg: "This is an invalid URL"); return }
guard let contents = try? Data(contentsOf: url) else { failed(msg: "Cannot retrieve data from this URL"); return }
guard let json = try? JSONSerialization.jsonObject(with: contents, options: .mutableContainers) else { failed(msg: "Contents is not in JSON format."); return }
guard let dict = json as? Dictionary<String,Any> else { failed(msg: "Cannot convert JSON to dictionary."); return }
guard let players = dict["Players"] as? Array<Dictionary<String,String>> else { failed(msg: "There is no players."); return }
for player in players {
guard
let firstName = player["First Name"],
let lastName = player["Last Name"],
let position = player["Position"],
let bats = player["Bats"],
let _throws = player["Throws"],
let height = player["Height"],
let weight = player["Weight"],
let dob = player["DOB"],
let number = player["Number"] else { continue }
masterController.objects.append(Player(firstName: firstName, lastName: lastName, position: position, bats: bats, throws: _throws, height: height, weight: weight, dob: dob, number: number))
}
}