Comments (6)
That was a bad code + misunderstanding of Instruments reports.
Bad me.
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I'm experiencing the same issue in your SO post - what is the solution? Or are these cached items not a problem?
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The solution is to track and fix the memory leak, 99,94% chances that comes from your code...
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I don't doubt that I'm doing something wrong, I just can't seem to figure out what it is. Are there JSONKit examples somewhere? Was the issue that you had a matter of releasing the decoder object? This is what I am doing...
JSONDecoder *decoder = [JSONDecoder decoder];
NSDictionary *decodedResponse = [decoder objectWithData:responseData];
Are these autoreleased objects or do I need to handle releasing them? Confused...the leak report looks very similar to the one on Stack Overflow.
Thanks for any help.
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JSONKit follows the standard Cocoa memory management conventions. In the example you provided, this means that the objects that are returned are autoreleased
- you do not and should not send them a release
message (unless, of course, you have sent them a retain
message).
The most likely cause of your problems is that you have inadvertently sent the decodedResponse
object a retain
message without a corresponding release
(or autorelease
) message. If there is no reference to decodedResponse
in your applications "live" memory, then there is no way for your application to even know that decodedResponse
exists, and therefore it leaks. You will have to track down where the errant retain
is, which can sometimes be tricky and non obvious.
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... as for "examples", your snippet of code is pretty much all there is to JSONKit. The only other major function is turning NSDictionary
or NSArray
objects in to JSON, which is usually done with:
JSONDecoder *decoder = [JSONDecoder decoder];
NSDictionary *decodedResponse = [decoder objectWithData:responseData];
// Convert decodedResponse back in to JSON...
// UTF8 encoded bytes contained in a NSData object: (fastest)
NSData *convertedBackToJSONUTF8StringData = [decodedResponse JSONData];
// Exactly the same as above, but as a NSString object: (slower)
NSString *convertedBackToJSONString = [decodedResponse JSONString];
That's it. Which one you use depends on your needs- a NSString
is easier to manipulate programmatically, and a NSData
is usually the best choice when your sending data to a server.
That's all JSONKit does- it converts JSON in to NSDictionary
or NSArray
objects (via the code you posted), and converts NSDictionary
or NSArray
objects in to JSON. Everything else is bells and whistles for those that need it.
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Related Issues (20)
- Any popular replacement for JSONKit? HOT 2
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- Swift HOT 7
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- crash with iOS9 Xcode7 HOT 5
- Should be #import <JSONKit/JSONKit.h> or <GCJSONKit/JSONKit.h>? HOT 1
- please ignore
- Crash when NSDictionary to String json format. HOT 1
- about convert json to NSDictioanry (error if json string contains double field) HOT 7
- JsonKit message JSONDataWithOptions crashes in macOS Sierra HOT 1
- JSONKit Installation error in X-code 7.3.1 iOS 9.3 HOT 1
- iOS TRAP_TRACE crash
- JSONKit semantic issue after updating the pod HOT 3
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- @serkrapiv Not necessarily verboten, just that they must be escaped. The first paragraph of 2.5 Strings says: HOT 1
- Yea
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