nsexception

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NSException in table view core data

Im developing an app that shows basic info from a coredata db, I have the db saving info when hit save button,[详细]

2023-01-31 04:45 分类：问答
Usage of NSException in iPhone Apps

One of my friends asked me not to use NSException in iPhone Apps. The reason he gave was \"performance bottleneck\". But I am not convinced of it.[详细]

2023-01-27 18:29 分类：问答
'NSInvalidArgumentException', reason: '-[__NSArrayI leftCapWidth]

I have three views that inherit from the UITableViewController class. The first one shows a list of locations, the second one shows a map with an annotation that represent the location of the row sele[详细]

2023-01-26 13:06 分类：问答
An -observeValueForKeyPath:ofObject:change:context: message was received but not handled

I am relatively new to KVO, so there is a good chance that I am violating some fundamental rule. I am using Core Data.[详细]

2023-01-24 11:05 分类：问答
how do I catch a NSRangeException?

I want my app to continue gracefully when the online server messes up. I tried to wrap the dangerous line in a @try block. Yet it is still crashing like so:[详细]

2023-01-11 02:36 分类：问答
How to find instance by hex in XCode console?

W开发者_如何转开发hen I bring up console after my iPhone app crashes, it often says \"unrecognized selector sent to instance 0x blah blah blah.\"How can I find out what variable this is?Is there a way[详细]

2023-01-09 23:10 分类：问答
CoreData: NSManagedObject does not respond to user defined message

Usin开发者_运维百科g CoreData (on an iPhone app) I generated my entity classes from the model and I added some more methods to some ones. It appears that sometimes I get an exception for calling one o[详细]

2023-01-07 01:44 分类：问答
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:[详细]

2022-12-16 05:38 分类：问答