Skip to main content

Recursively traverse object in Objective-C



I'm converting diverse JSON objects to structured objects and want to iterate over all the nodes to process each one hierarchically. JSON framework supports conversion to an NSDictionary, which I thought was unstructured. I want to recursively iterate through each item and pay respect to the structure. How would this be done with either a dictionary or generic NSOBject?





Example:







- (void) processParsedObject:(NSDictionary *)obj

{

if (atTheEndOfTheTail) {

NSLog(@"Object description: %@\n\n", obj.description);



}

for (id object in obj) {

[self processParsedObject:object];

}

}







Update:





I asked the question more clearly here (with answer):





Recursively traverse NSDictionary of unknown structure


Comments

  1. You can enumerate all the keys in an NSDictionary using:

    NSEnumerator* keyEnum = [myDictionary keyEnumerator];
    NSObject* nextKey;
    while ((nextKey = [keyEnum nextObject]) != nil)
    {
    NSObject* nextValue = [myDictionary objectForKey:nextKey];
    //... do something with the object and/or key ...
    }

    ReplyDelete

Post a Comment

Popular posts from this blog

Slow Android emulator

I have a 2.67 GHz Celeron processor, 1.21 GB of RAM on a x86 Windows XP Professional machine. My understanding is that the Android emulator should start fairly quickly on such a machine, but for me it does not. I have followed all instructions in setting up the IDE, SDKs, JDKs and such and have had some success in staring the emulator quickly but is very particulary. How can I, if possible, fix this problem?

CCNA 1 Final Exam 2011 latest (hot hot hot)

  Hi! I have been posted content of ccna1 final exam (latest and only question.) I will post the answer and insert image on sunday. If you care, please subscribe your email an become a first person have full test content. Subcribe now  Some question  have not content because this question have images content. So that can you wait for me? SUNDAY 1. A user sees the command prompt: Router(config-if)# . What task can be performed at this mode? Reload the device. Perform basic tests. Configure individual interfaces. Configure individual terminal lines. 2. Refer to the exhibit. Host A attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured with the source MAC address 0050.7320.D632 and the destination MAC address 0030.8517.44C4. The packet inside the captured frame has an IP source address 192.168.7.5, and the destination IP address is 192.168.219.24. At which point in the network was this packet captured? leaving host A leaving ATL leaving...