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POKeeping KEYS in correct ORDER in NSDictionary/NSArray from JSON
 

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  1. POKeeping KEYS in correct ORDER in NSDictionary/NSArray from JSON
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    <p>I have a JSON array returning from a request.<br/> Data is as such (it comes from external source and cannot be changed from server):</p> <pre><code>[{"clients": {"name":"Client name here","telephone":"00000","email":"clientemail@hotmail.com","website":"www.clientname.com"} }] </code></pre> <p>I receive the JSON array in this order.</p> <p>I have the below Objective-C:</p> <pre><code>//jsonString is the json string inside type NSString. NSMutableDictionary *tempDict = [jsonString JSONValue]; NSMutableDictionary *clients = [tempDict objectForKey:@"clients"]; for(NSString *key in clients) { id value = [tempDict objectForKey:key]; for(NSString *itemKey in key) { NSLog(@"ITEM KEY %@: ",itemKey); } } </code></pre> <p>The order it prints keys is:<br/> telephone<br/> email<br/> name<br/> web site<br/></p> <p>I need it to print how it is received (eg):<br/> name<br/> telephone<br/> email <br/> web site<br/></p> <p>I have read that Dictionaries are unsorted by definition so am happy to use an Array instead of a dictionary.</p> <p>But I have seen SEVERAL threads on StackOverflow regarding possible solution (using <code>keysSortedByValueUsingSelector</code>):<br/> <a href="https://stackoverflow.com/questions/9708742/getting-nsdictionary-keys-sorted-by-their-respective-values">Getting NSDictionary keys sorted by their respective values</a> <br/> <a href="https://stackoverflow.com/questions/3583020/can-i-sort-the-nsdictionary-on-basis-of-key-in-objective-c">Can i sort the NSDictionary on basis of key in Objective-C?</a><br/> <a href="https://stackoverflow.com/questions/11217421/sort-nsdictionary-keys-by-dictionary-value-into-an-nsarray">sort NSDictionary keys by dictionary value into an NSArray</a><br/> <a href="https://stackoverflow.com/questions/3583020/can-i-sort-the-nsdictionary-on-basis-of-key-in-objective-c?lq=1">Can i sort the NSDictionary on basis of key in Objective-C?</a><br/></p> <p>I have tried them and am getting nowhere. Not sure if it is just my implementation which is wrong.</p> <p>I tried (attempt 1):</p> <pre><code>NSArray *orderedKeys = [clients keySortedByValueUsingComparator:^NSComparisonResult(id obj1, id obj2){ return [obj1 compare:obj2]; }]; for(NSString *key in orderedKeys) { id value = [tempDict objectForKey:key]; for(NSString *keyThree in key) { NSLog(@"API-KEY-ORDER %@: ",keyThree); } } </code></pre> <p>Receive error: <code>[__NSArrayM keySortedByValueUsingComparator:]: unrecognized selector sent to instance</code>. <br/></p> <p>Also tried (attempt 2):</p> <pre><code>NSArray *sortedKeys = [[clients allKeys] sortedArrayUsingSelector: @selector(compare:)]; NSMutableArray *sortedValues = [NSMutableArray array]; for (NSString *key in sortedKeys){ [sortedValues addObject: [tempDict objectForKey: key]]; //[sortedValues addObject: [all objectForKey: key]]; //failed } </code></pre> <p>But another error on selector even though clients is a NSMutableDictionary.</p> <pre><code>[__NSArrayM allKeys]: unrecognized selector sent to instance 0x4b6beb0 </code></pre> <p>I am at the point where I think I am going to iterate over the <code>NSMutableDictionary</code> and manually place them into a new <code>NSMutableArray</code> in the correct order.</p> <p>Any ideas would be very much appreciated?<br/> OR anybodies code snippet attempt at my problem would be equally appreciated.</p>
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    1. USCommunity
    1. USCraig Taub
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    1. COIt appears as if `clients` is an `NSArray` and you're trying to perform `NSDictionary`'s selectors on it
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      1. POKeeping KEYS in correct ORDER in NSDictionary/NSArray from JSON
      1. USEli Ganem
    2. COyes I do not undersand why it is thinking this. You can see above `clients` is an `NSMutableDictionary`.
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      1. POKeeping KEYS in correct ORDER in NSDictionary/NSArray from JSON
      1. USCraig Taub
    3. COPlace a breakpoint after `clients` is initiated and type `po clients` in the console. What class does the console show?
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      1. POKeeping KEYS in correct ORDER in NSDictionary/NSArray from JSON
      1. USEli Ganem
 

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