nsjsonserialization

问题 I have a Swift struct like this. struct Usage { var totalData: Double var remainingTotalData: Double init(jsonData: NSData) { var jsonDict = [String: AnyObject]() do { jsonDict = try NSJSONSerialization.JSONObjectWithData(jsonData, options: []) as! [String: AnyObject] } catch { print("Error occurred parsing data: \(error)") } totalData = jsonDict["totalfup"] as! Double remainingTotalData = jsonDict["totalrem"] as! Double } } From an API, I get the following JSON response. This is the println

问题 I have to get football game schedule via JSON and extract date of each game of one of the specific universities. I tried: let url = NSURL(string: "SCHOOL URL") let request = NSURLRequest(URL: url!) let session = NSURLSession.sharedSession() let task = session.dataTaskWithRequest(request){ (data, response, error) -> Void in do{ let jsonData = try NSJSONSerialization.JSONObjectWithData(data!, options: .AllowFragments) if let schedule = jsonData["schedule"] as? [[String: AnyObject]]{ for game in

问题 I'm currently trying to POST some JSON containing emojis to a python API. I tried feeding the NSJSONSerialization directly with the string containing the emojis from my UITextField but the serializer crashed with no meaningful explanation. Afterwards I tried to do some format conversion and ended up with something like this: NSString *uniText = mytextField.text; NSData *msgData = [uniText dataUsingEncoding:NSNonLossyASCIIStringEncoding]; NSString *goodMsg = [[NSString alloc] initWithData

问题 I'm really struggling with trying to read a JSON file into Swift so I can play around with it. I've spent the best part of 2 days re-searching and trying different methods but no luck as of yet so I have signed up to StackOverFlow to see if anyone can point me in the right direction..... My JSON file is called test.json and contains the following: { "person":[ { "name": "Bob", "age": "16", "employed": "No" }, { "name": "Vinny", "age": "56", "employed": "Yes" } ] } The file is stored in the

问题 JSONObjectWithData is returning null without an error if the json string contains a degree sign ° (U+00B0). The json string displays fine if I serve it to my desktop browser. My code (a category) with a few NSLogs to see what is happening looks like this... +(NSDictionary*)dictionaryWithContentsOfJSONURLString:(NSString *)urlAddress{ __autoreleasing NSError* error = nil; NSData* data = [NSData dataWithContentsOfURL:[NSURL URLWithString:urlAddress] options:NSDataReadingUncached error:&error];

问题 Upgrading to UrbanAirship 3.0.0 with Xcode 5.0, I'm getting an error when calling this code: [UAirship takeOff:config]; The error is +[NSJSONSerialization stringWithObject:]: unrecognized selector sent to class 0x3b2ca9fc 2013-09-19 15:02:31.981 [178:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[NSJSONSerialization stringWithObject:]: unrecognized selector sent to class 0x3b2ca9fc' This doesn't seem to appear when setting the key "inProduction" to

问题 I'm sending JSON (initially stored in an NSDictionary) using AFNetworking. My object looks like this (taken from a doc comment): /** * Sends a create request to the API server * Success will be a dictionary containing: * * playlistSession: { * "mediaSegments": {}, * "mediaSequence": 0, * "timeElapsed": 0, * "config": { * "maxSegments": 4, * "targetDuration": 10 * }, * "meta": { * "id": "test", * "shouldBeAvailable": false, * "isAvailable": false, * "shouldFinish": false, * "isFinished": false

问题 I am attempting to submit an image to CardShark's API using AFNetworking. NSData *imageData = UIImageJPEGRepresentation(cardImage, 1.0); NSDictionary *parameters = @{@"front" : [imageData base64EncodedStringWithSeparateLines:NO]}; NSString *path = [NSString stringWithFormat:@"cardShark?webhookUrl=%@&apiKey=%@", kCardSharkWebHookURLEncodedString, kCardSharkAPIKey]; [self postPath:path parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) { completion

问题 I have the following code hostStr = [hostStr stringByAppendingString:post]; NSData *dataURL = [NSData dataWithContentsOfURL: [ NSURL URLWithString: hostStr ]]; NSString *serverOutput = [[NSString alloc] initWithData:dataURL encoding: NSASCIIStringEncoding]; NSError *error = nil; NSDictionary *result = [NSJSONSerialization JSONObjectWithData:dataURL options:kNilOptions error:&error]; NSArray *files = [result objectForKey:@"GV_Return"]; NSLog(@"Files: %@", files); // For Each Key we seperate

问题 I think I get it how to use the NSJSONSerialization over all. The call I am making is: [NSJSONSerialization dataWithJSONObject:parameters options:0 error:&error] where parameters is a NSDictionary which includes keys and values to use in the JSON request. Everything is fine and all, until I have to use null as a value instead of an empty string. I can't find a way to set the value as null at all. The example of json that I need to create is: {"target" {"firstname":<firstname>, "lastname":