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Questions tagged [nsexception]

NSException is a Mac Developer Library class used to implement exception handling and contains information about an exception.

NSException is a Mac Developer Library class used to implement exception handling and contains information about an exception.

It is available in OS X v10.0 and later and is declared in NSException.h

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In Objective-c what I should use to return that parameter can't be nil?

I know that I can return that parameter can't be nil by NSError or throw NSException, but what is the best option to inform that parameter can't be nil in objective-c ?
Roman Barzyczak
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Is it possible to get which class thrown the exception?

Is it possible to get which class thrown the exception at runtime? If so, then how to do it? What I want to do is to detect which class did throw the exception. I'm using NSSetUncaughtExceptionHandler(NSUncaughtExceptionHandler *) to detect if my…
dzep
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Terminating app due to uncaught exception 'NSInvalidArgumentException' using AWS iOS SDK

I'm having trouble with a simple multipart upload to S3 using the iOS SDK. Can't figure out the argument exception that's not being handled which occurrs with ~65 seconds of background time remaining ([UIApplication…
vincewilfork
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Using an NSPredicate to tell if an NSSet contains objects from another NSSet

I have a Core Data object that has an NSOrderedSet of Core Data objects in it called hierarchyItems. I want to create a fetch request that will check to see if the hierarchyItems set contains an object that is also in another NSMutableSet of Core…
user3200440
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Core Data: Errors vs Exceptions Part 2

My question is similar to this one, but I need further clarification. I often get exceptions during code like this: NSError* error; if (![managedObjectContext save:&error]) { NSLog(@"Failed to save to data store: %@", [error…
sehugg
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Why does this code crash on the distributed app but work in the debugger?

I have simple code that executes and in case it crashes I want to catch the exception so the app does not crash. @try { x = [self try_doMyWork:Param]; } @catch (NSException* e) { NSLog(@"Exception"); } While this code works in debug and…
user387184
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BugSense responding with status code 500 on iOS on a phonegap application

I am developing a phonegap application for iOS devices. I also integrated bugsense for iOS. I am using window.onError from javascript to catch errors and then use a Webview delegate method to perform exception handling. This is where I create a…
Khalil
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Objective-c Try/Catch not catching

Is there a reason why the following wouldn't work? @try { CFGetTypeID( NULL ); } @catch (NSException * e) { NSLog(@"Exception: %@", e); } @finally { NSLog(@"finally"); } Similar to the try/catch question, only it seems the above block…
Corey Hart
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RestKit RKObjectLoader objectLoader didLoadObjects failed on device

I am using RestKit and stuck with a problem. I've tried quite a lot of things to solve this, but return no success. :) - (void)objectLoader:(RKObjectLoader*)objectLoader didLoadObjects:(NSArray*)objects { NSLog(@"objects count: %d.", [objects…
siriusdely
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Sign in with Apple in realm SwiftUI exception: unrecognized selector sent to instance

I am trying to implement sign in with apple to Realm. I already did the configuration from the docs: https://www.mongodb.com/docs/atlas/app-services/authentication/apple/#std-label-apple-id-authentication Now I am trying to add the sign in with…
dhaval123
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iphone - try, catch question

I have a method that has several parts that can throw an exception. If one of these parts fail, I would like the cleaning method to run. I am thinking about using the try/catch directive. My question is: will I have to use one directive for every…
Duck
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Exception throwing JSON supporting program in iphone

I downloaded JSON files. I added these files in project directory. But when I am runnig program I am getting an error which is... -[__NSCFDictionary JSONRepresentation]: unrecognized selector sent to instance 0x6003d50 * Terminating app due to…
Ajay_Kumar
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I am getting an error when I try to run an app that will ask questions

I am trying to make an app that will ask questions and you have to answer True or False. This is part of an online course I am taking. I started with the challenge of displaying on the screen " four + two is equal to 6" and displaying it. Here is…
Abhisek Buvanesh
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Swift 5 Firestore: Checking if collection exists in database

I'm trying to check if a certain collection exists in my Firestore database, and here is my code for doing so: let db = Firestore.firestore() db.collection(pickedClass).getDocuments { (snapshot, error) in if…
Gurkarn Goindi
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How can I make AutoLayout crash my app when it logs unsatisfiable constraints in debug console?

I am working in a team. When someone develops new UI using AutoLayout, they often test it on simulator/device and forget about the console. After months of such behavior debug console is flooded with unsatisfiable constraints logs and will attempt…
efimovdk
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