nsmutabledictionary

问题 I'm trying to use a global NSMutableDictionary from a dispatch queue. However, the items keep coming back NULL. What I'm trying to do is access an external json file with a dispatch_queue, then populate a UITableView with this info. Here's what I have vc.h: @interface viewcontroller { NSMutableDictionary *jsonArray; } vc.m: #define kBgQueue dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0) //1 #define jsonTest [NSURL URLWithString:@"http://www.sometest.com/test.php"] -(void

问题 I want to call the JSONRepresentation method on an NSMutableDictionary object. I'm calling it using [userDict JSONRepresentation]; , but I am getting the following warning: NSMutableDictionary may not responsd to '-JSONRepresentation' Could anyone tell me how to I can properly call the JSONRepresentation method on an object of the NSMutableDictionary type? Thanks in advance. 回答1: The JSONRepresentation method comes from json-framework. Include that framework in your project and import the

问题 I want to copy a NSMUtableDictionary values into the another NSMutableDictioary. How can i do that? Here my code is, PersonClass.h file: NSMutableDictionary *tempDictionary; @property (nonatomic, retain) NSMutableDictionary *tempDictionary; PersonClass.m @synthesize tempDictionary; tempDictionary = [[NSMutableDictionary alloc] init]; -(PersonClass *) initWithPerson:(NSMutableDictionary *) feedDictionary { // get all the values in feedDictionary. //Now i want copy of the details from

问题 I have a dictionary i want to iterate it in ordered form as the objects are in the dictionary, but after iterating it is iterating in random order. Please help Thanks in advance. 回答1: You can't sort a dictionary but you can sort its keys as follow: let myDict: [String:String] = ["car":"blue", "watch":"black", "bike": "red"] for key in myDict.keys.array.sorted(<) { let value = myDict[key]! println("\(key) = \(value)") } let dashboardItemsTuples : [(String , String)] = [("All Cards" , "cards" )

问题 I'm trying to parse the following JSON code in iOS. The JSON code consists of an array of games numbered 0 to x. I've been searching around but cant seem to find any examples which have JSON in this format. { "command":"show_my_games", "0":{"gameid":"7","foruserid":"16","againstuserid":"0","casefor":"","caseagainst":"","status":"0","argumentid":"7","againstusername":null,"forusername":"Gem","argument":"argument 1"}, "1":{"gameid":"8","foruserid":"15","againstuserid":"16","casefor":"",

问题 I would like to pass the nsdictionary I am creating into an nsmutablearray but I'm not sure when or how to do it in the nsxmlparser delegates. this is what I have done so far #pragma mark - Parsing lifecycle - (void)startTheParsingProcess:(NSData *)parserData { NSXMLParser *parser = [[NSXMLParser alloc] initWithData:parserData]; //parserData passed to NSXMLParser delegate which starts the parsing process [parser setDelegate:self]; [parser parse]; // starts the event-driven parsing operation.

问题 I have an NSMutableDictionary with some song data (for example key: "Artist" object: "Passion Pit") that I need to send to a server as http POST variables. I have been reading examples all day and cannot figure out how to convert my dictionary's values and keys and then send them to a URL. Does the iPhone SDK give you a means of doing that or is there source code that I should be downloading? Thanks for the help! 回答1: The easiest solution is to use the ASIHTTPRequest library. Here's an

问题 I'm trying to create a filter. I have a function that returns an NSArray for the different categories I can have. I'd like one extra option for "All" to denote that no filter is being applied. For example, should display: All Soda Wine Beer I started with this, but I don't think it's very good implementation at all, and it's not correct either. It's just where I'm at so far: - (void)initCategoryDictionary { NSMutableArray *conditionCategories = (NSMutableArray *)[self GetAllCategories];

问题 Ok, i kind of asked the wrong question so I've edited the original question. I'm storing Arrays within Arrays, as well as NSDictionaries. It's a utility kind of application and there is no set structure, the user can enter nested information as much as they require. Ideally I need a method to scroll through the entire contents of my array given a set parameter (a type of class, maybe a dictionary key). Here's an example.. NSMutableArray *array = [[NSMutableArray alloc]init];

问题 I am saving different codes in a NSMutableDictionary and checking later if a specific code is in the dict. No I want to remove the entry which contain the code. Here you see how my array with the dict looks: 2013-04-28 12:43:23.877 myApp[9422:907] pushArray: ( { code = 123; titel = "Test 01"; }, { code = 456; titel = "Test 02"; }, { code = 789; titel = "Test 03"; } ) Here you see how I search for the code: for(NSMutableDictionary * pushDict in pushArray) { NSString * codeFromDict = [pushDict