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Objective C - code crashes on selecting in nav controller

Answer 1

+2 A:

You are not claiming ownership of itemsArray, so it's being freed by the autorelease pool at some point. You could solve it by setting the variable using an accessor that properly retains and releases. Also, if you haven't, you should read the Cocoa memory management guidelines.

Chuck 2009-07-29 04:25:55

Answer 2

+2 A:

Chuck has it right, you aren't retaining the array.

One fix is to make itemsArray a property of the controller so in the header

@interface RootViewController : UITableViewController {
    NSArray *itemsArray;
    NSString *test;

}

//add the property directive for itemsArray and tell it to use retain
@property (nonatomic, retain) NSArray *itemsArray;

and in the .m

@implementation RootViewController
// add the synthesize for itemsArray property
@synthesize itemsArray;


// when you set the value of itemsArray use self.itemsArray this will properly retain the array
self.itemsArray = [NSArray arrayWithContentsOfURL:plistURL];


// release the itemsArray in dealloc
- (void)dealloc {
  [itemsArray release];
  [super dealloc];
}

paulthenerd 2009-07-29 15:59:23

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Objective C - code crashes on selecting in nav controller

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