nsdictionary

问题 Is it possible to dynamically name a variable (mine is specifically a char array) by the name of a key that is read from NSDicttionary .plist? NSMutableDictionary *readDict = [[NSMutableDictionary alloc] initWithContentsOfFile:@"path/to/plist"]; NSDictionary * getKeys = [readDict objectForKey:@"info"]; for (id key in getKeys) { NSLog(@"%@ %@", key, [getKeys objectForKey:key]); // output key1 some data in here== (repeats with key2, etc.) NSData *theData = [getKeys objectForKey:key]; const char

问题 I am working on a project in Swift, using a dictionary . This dictionary is of the type [String : [Posting]] . I have around 200k different "terms" (keys) to insert in it, and for each term I have around 500 to 1000 objects to append in a list. I know it's a weird practice but I don't have the choice and I must deal with all those elements. The issue is that this is very very slow, as the dictionary gets bigger. I tried switching to a NSMutableDictionary , no luck. My addTerm function is

问题 I am trying to create Model Class by using JSONModel.My json Dictionary after using NSJSONSerialization looks like below. { apiStatus = { message = SUCCESS; success = 1; }; boardingPoints = "<null>"; inventoryType = 0; seats = ( { ac = 0; available = 1; bookedBy = "<null>"; commission = "<null>"; fare = 1200; }, { ac = 0; available = 1; bookedBy = "<null>"; commission = "<null>"; fare = 1200; }, ); } The JSON looks like this: {"boardingPoints":null,"inventoryType":0,"apiStatus":{"success"

问题 I'm trying to merge the code from this link into my own application while using my own dictionary. I have had several problems, however. My code produces this kind of dictionary (because I'm using a web service to get this data from a MySQL database): {audiences = ({ name = ABDUL; id = 1; },{ name = ELSA; id = 2; },...etc)} However, I want a dictionary like this: audiences = @{@"B" : @[@"Bear", @"Black Swan", @"Buffalo"], @"C" : @[@"Camel", @"Cockatoo"], @"D" : @[@"Dog", @"Donkey"]}; Which,

问题 I'm still trying to wrap my head around using NSDictionaries, and have come into a situation where I believe I need to use one. essentially, I would like to store all the phone numbers associated with each contact into a dictionary. so far I have this: ABAddressBookRef addressBook = ABAddressBookCreate(); NSArray *thePeople = (NSArray *)ABAddressBookCopyArrayOfAllPeople(addressBook); for (id person in thePeople) { ABMultiValueRef phones =(NSString*)ABRecordCopyValue(person,

问题 I am building react native using native module. In the javascript side, I want to create native module on iOS for listener event and call some method from javascript side. I have a static NSDictionary variable in Objective C. But when I get value of variable, it show EXC_BAD_ACCESS. I am building react native using native module. In the javascript side, I want to create native module on iOS for listener event and call some method from javascript side. Here is my code DeepLinkController.js

问题 I'm sure there is a way to do this using blocks, but I cant figure it out. I want to to turn an NSDictionary into url-style string of parameters. If I have an NSDictionary which looks like this: dict = [NSDictionary dictionaryWithObjectsAndKeys:@"blue", @"color", @"large", @"size", nil]]; Then how would I turn that into a string that looks like this: "color=blue&size=large" EDIT Thanks for the clues below. This should do it: NSMutableString *parameterString; [dict

问题 I have an array of dictionaries that contain information about high scores. I am trying to figure out how to sort them by the different values in the dictionaries but cannot get it to work. An example shown below attempts to sort by "Score": NSDictionary *highScoreDictionary1 = @{@"Score" : @52, @"Duration" : @230 , @"Date" : [NSDate date]}; NSDictionary *highScoreDictionary2 = @{@"Score" : @23, @"Duration" : @230 , @"Date" : [NSDate date]}; NSDictionary *highScoreDictionary3 = @{@"Score" :

问题 I'm making my first iphone application and it's a wine chart application. It's with storyboard in xcode 4.2. It's based on a tab bar with 4 tabs: info, wine chart, search, favourites. I'm making the wine chart at the moment, In this tab I've put a TableView with a prototype cell and I want to fill this cell with name, district and image of the wines. So far I've done this: 1: Linked the second tab to a navigation controller 2: Linked the navigation controller to the TableView

问题 there are a lot of questions like this and i'm experienced with json format too but i couldnt parse the response below(at the bottom): I'm using NSJSONSerialization for parsing the response into NSDictionary but the it gives the error like below: My code: NSString *subURL= sharedDa.ip; NSData *data=[NSData dataWithContentsOfURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://192.168.69.230/tsadmin.php?tssearch=%@", subURL]]]; NSError *error=nil; NSDictionary* portsResult=