I am grabbing images from the users' contacts in their iOS Address Book/Contacts.app. And putting them in a dictionary to upload as JSON.
I am getting the following error:
2012-12-05 10:38:01.286 ContactsApp[6247:713f] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Invalid type in JSON write (__NSCFData)'
*** First throw call stack:
(0x2de6012 0x286ce7e 0x2de5deb 0x20926fe 0x2096b21 0x2dd3cdf 0x2dd387d 0x2dd37c5 0x20966fa 0x209262d 0x2096b21 0x2dd3cdf 0x2dd387d 0x2dd37c5 0x20966fa 0x209262d 0x20969af 0x2ddfe7c 0x2ddfa16 0x2ddf925 0x20968b8 0x2092679 0x2096b21 0x2dd3cdf 0x2dd387d 0x2dd37c5 0x20966fa 0x209262d 0x20923bd 0x209579c 0x1cad5 0x67475 0x66a87 0x14399cd 0x746008f 0x3dc253f 0x3dd4014 0x3dc52e8 0x3dc5450 0x90e36e12 0x90e1ecca)
libc++abi.dylib: terminate called throwing an exception
I've using the following code:
if (ABPersonHasImageData(addressBookContact)) {
NSMutableDictionary *imageDictionary = [NSMutableDictionary dictionary];
NSData *thumbnailImageData = (__bridge NSData *)ABPersonCopyImageDataWithFormat(addressBookContact, kABPersonImageFormatThumbnail);
NSData *originalImageData = (__bridge NSData *)ABPersonCopyImageDataWithFormat(addressBookContact, kABPersonImageFormatOriginalSize);
if (thumbnailImageData) [imageDictionary setObject:thumbnailImageData forKey:#"thumbnailImage"];
if (originalImageData) [imageDictionary setObject:originalImageData forKey:#"originalImage"];
[contactDictionary setObject:imageDictionary forKey:#"image"];
}
The error occurs when I am trying to place the array into this request:
[addressBookArray addObject:contactDictionary];
if ([addressBookArray count] % 15 == 0) {
// I'm using AFNetworking
[[APIClient sharedClient] requestWithMethod:#"POST" path:#"cmd/addContact" parameters:#{ #"addressBookEntries" : addressBookArray }];
[addressBookArray removeAllObjects];
}
Your problem is that you are attempting to put NSData objects into a JSON object. Instead of adding the image data to the imageDictionary, add the base64 encoding of the images to the imageDictionary and you should have no problem.
Matt Gallagher has a handy class for handling base64 here: http://www.cocoawithlove.com/2009/06/base64-encoding-options-on-mac-and.html
Looks like AFNetworking is trying to parse your parameters into JSON, but you're passing it an NSData. Although your passing it an NSDictionary, which is valid, those nested types need to be either other NSDictionaries, NSArrays, NSStrings, and NSNumbers. If you want to append image NSDatas, you have to use a different content-type and append the image data.
Related
My iOS app terminates with Thread 1: signal SIGABRT error. The strange thing is, when I hover the cursor over the NSNumber object (where the error has occurred), it displays the objects of an NSDictionary with Key/Value pair. Following is my code snippet:
for(id obj in [MainDict allKeys])
{
NSArray *AnArrayInsideMainDict = [MainDict objectForKey:obj];
double i=1;
for(NSUInteger n=0; n<4; n++)
{
NSNumber *anObject = [AnArrayInsideMainDict objectAtIndex:n];
NSNumber *nextObject = [nextDict objectForKey:[NSNumber numberWithDouble:i]];
NSNumber *HereIsTheError = [NSNumber numberWithFloat:(powf(([anObject floatValue]-[nextObject floatValue]),2))];
[ThisIsMutableArray addObject:HereIsTheError];
i++
}
}
Here, the MainDict contains 64 key/value pairs (each key contains an NSArray of 5 objects).nextDictis an NSDictionary with 4 key/value pairs (each key contains one NSNumber object // EDIT: each key actually contained an NSArray with single NSNumber Object, this was the reason for the error). After the app termination and hovering the cursor over the HereIsTheError, I get following key/value pair:
The terminating error at the console is:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM floatValue]: unrecognized selector sent to instance 0x170257a30'
*** First throw call stack:
(0x18b032fe0 0x189a94538 0x18b039ef4 0x18b036f54 0x18af32d4c 0x1000891a0 0x10008bd74 0x10020d598 0x100579a50 0x100579a10 0x10057eb78 0x18afe10c8 0x18afdece4 0x18af0eda4 0x18c979074 0x1911c9c9c 0x1000906b4 0x189f1d59c)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
How can NSNumber conation the objects of NSDictionary? I use Xcode Version 9.0.1 (9A1004) and Objective-C.
As the comments state, but most importantly your error message states, your objects anObject and nextObject are not NSNumber's - they are NSMutableArray's, hence the
-[__NSArrayM floatValue]: unrecognized selector...
part of your error.
Ensure the objects in AnArrayInsideMainDict are in fact
NSNumber's before attempting to cast them as numbers,
I would suggest flagging your objects before "assuming" their types, but I doubt that would help you get your desired outcome (as this would most likely from your case here skip each object that is not an NSNumber).
Before you even enter the for loop in [MainDict allKeys], backtrace to make sure you are in fact passing arrays of NSNumber's as the dictionaries objects.
IF you are actually not sure of the object types, you can just throw a flag to make sure you are not misinterpreting any of the objects:
...
for (NSUInteger n=0; n<4; n++) {
NSNumber *anObject = [AnArrayInsideMainDict objectAtIndex:n];
NSNumber *nextObject = [nextDict objectForKey:[NSNumber numberWithDouble:i]];
if ([anObject isKindOfClass:NSNumber.class] && [nextObject isKindOfClass:NSNumber.class]) {
// Good to continue now that you know the objects
} else NSLog(#"whoops.. anObject: %# nextObject: %#", anObject.class, nextObject.class);
...
LASTLY, if you are so daring, and are sure that somewhere in this dictionary are your NSNumber's, you could flag your steps to check for instances of the NSNumber.class in order to seek out your floats.
Otherwise, I suggest deep diving into the how and where you are getting your MainDict from.
Happy coding - cheers!
I have a problem when encode an NSMutableArray array of custom object (Room).
My custom object is : -nameRoom (NSString) -numberRoom (NSInteger).
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:array options:NSJSONWritingPrettyPrinted error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
This is the error:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Invalid type in JSON write (Room)
Thanks.
From the docs (yes, sometimes reading the documentation is helpful)
You use the NSJSONSerialization class to convert JSON to Foundation
objects and convert Foundation objects to JSON.
An object that may be converted to JSON must have the following
properties:
The top level object is an NSArray or NSDictionary.
All objects are instances of NSString, NSNumber, NSArray, NSDictionary, or NSNull.
All dictionary keys are instances of NSString.
Numbers are not NaN or infinity.
Other rules may apply. Calling isValidJSONObject: or attempting a
conversion are the definitive ways to tell if a given object can be
converted to JSON data.
JSON does not support custom objects.
See: Introducing JSON.
In order to support a custom object you will have to break it down into a graph of standard JSON objects. In the OP's case it will simply be a dictionary containing nameRoom and numberRoom.
I am new to Obj-C and somehow I can get the output of a JSON-Request due to difficulties with arrays, dictionareis and syntax. It would be great if someone could get me on my way.
NSLog(#"JSON Feed: %#", self.classified);
NSDictionary *test = self.classified;
NSLog(#"andy %#", [test objectForKey:#"text"]);
this throws an exception :
JSON Feed: (
{
text = "test text";
}
)
2014-06-05 17:25:28.170 Nerdfeed[2321:4107] -[__NSCFArray objectForKey:]: unrecognized selector sent to instance 0x10b988da0
2014-06-05 17:25:28.173 Nerdfeed[2321:4107] * Terminating app due to uncaught exception
I now tried to find a solution for hours but cant fix it. Thank you so much for any help.
self.classified seems to be a NSArray with a single item (and not a NSDictionary). Try [[self.classified firstObject] objectForKey:#"text"]
I am trying to save an NSMutableArray in CoreData. The Array contains objects NSDictionary
NSDictionary has following Structure
valueDict =
{
FloorId = F0001;
endCoordinates = "NSPoint: {541, 413}";
linePath = "<UIBezierPath: 0x1d0903c0>";
pointsOnLine = (
);
startCoordinates = "NSPoint: {418, 504}";
},
To write to the Core Data I use following code: parray is type BinaryData
points.parray = [NSKeyedArchiver archivedDataWithRootObject:self.locationsArray];
and to retrieve value I use
locationsArray = [NSKeyedUnarchiver unarchiveObjectWithData:points.parray];
When I try to retrieve it i get following error :
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSDictionary initWithObjects:forKeys:]: count of objects (0) differs from count of keys (5)'
I have checked that NSArray and NSDictionary adopts NSCoding protocol. What am I doing wrong here ?
The best way to solve this is to create either a small test app, or a test method called when your app launches. Create a typical dictionary using the same keys and types, try to archive it, log the data size, then immediately try to unarchive the data. Assuming it fails comment out one or more keys til what's left works. Now you know the problem key and can better determine what is wrong.
I'm trying to receive a certain value in a json using AFNetworking. The value only contains digits and I want to receive it as a NSString. When I compare the received value, I get a exception (exception is also mentioned later in this post)
here is the coding producing the error.
NSArray *overallGameResultsArray = [resultDictionary valueForKey:#"overall_game_results"];
winCountDictionary = [[NSDictionary alloc] init];
for (NSDictionary *gameResultsDictionary in overallGameResultsArray)
{
NSString *userId = [gameResultsDictionary valueForKey:#"winner_user_id"];
NSString *winCount = [gameResultsDictionary valueForKey:#"win_count"];
if ([winCount isEqualToString:#"0"])
{
NSLog(#"0 wins");
}
}
I don't get the exception if the "if comparison" is commented. The win_count only consists of digits in the jSON response.
Following is the exception error I'm getting.
2012-10-10 15:41:35.086 FMB[3549:c07] -[__NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x7230af0 2012-10-10 15:41:35.086 FMB[3549:c07] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x7230af0'
*** First throw call stack: (0x1638012 0x1345e7e 0x16c34bd 0x1627bbc 0x162794e 0x11e03 0x20583 0x1fab4 0x245053f 0x2462014 0x24527d5 0x15deaf5 0x15ddf44 0x15dde1b 0x26997e3 0x2699668 0x28d65c 0x2512 0x2445) libc++abi.dylib: terminate called throwing an exception
i think you'll have to do :
NSString *winCount=[NSString stringWithFormat:#"%d",[[gameResultsDictionary valueForKey:#"win_count"]intValue];
With this, you get the number value into the winCount NSString, and then you can use isEqualToString method
I suppose you use JSON. Then the type of the object is determined by JSON encoding. If there are " around, it's a string. If it's a number and you want string there, change how the data is encoded on the server.
However, in this context, using a number makes more sense. You should change the implementation in the following way.
NSNumber* winCount = [gameResultsDictionary valueForKey:#"win_count"];
if ([winCount intValue] == 0) { //this would actually work for both NSNumber and NSString
NSLog(#"0 wins");
}
Comparing numbers using string comparison is always a hint that you are doing something wrong.
The exception is thrown because you expect an object to be an NSString but actually is an NSNumber, so you try to call isEqualToString: on the NSNumber which doesn't implement the method.
Since you know that winCount is always a number and apparently the JSON deserializer that AFNetworking uses box the numbers in the response into NSNumber objects, you could easily grab a string out of the object like this:
NSString *winCount = [[gameResultsDictionary valueForKey:#"win_count"] stringValue];
Now you have a string representation of your number and you can therefor perform isEqualToString:
Also note that a more elegant solution might be to receive your objects as ids, find their class and do a comparison based on the class determined.