NSTableView not displaying data - cocoa

Question

Here's my code:
test.h
#interface testAppDelegate : NSObject <NSApplicationDelegate> {
NSWindow *window;
IBOutlet NSTableView *test;
NSMutableArray *internalArray;
}
#property (assign) IBOutlet NSWindow *window;
#property (nonatomic, retain) NSTableView *test;
-(id) initWithArray: (NSArray*) objects;
-(int)numberOfRowsInTableView:(NSTableView *)aTableView;
-(id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex;
-(void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex;
test.m (top pieces missing for simplicity's sake)
#synthesize window;
#synthesize test;
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
PSClient *client = [PSClient applicationClient];
NSURL *url = [NSURL URLWithString:#"http://www.apple.com/main/rss/hotnews/hotnews.rss"];
PSFeed *feed = [client addFeedWithURL:url];
internalArray = [NSMutableArray array];
// Retrieve the entries as an unsorted enumerator
NSEnumerator *entries = [feed entryEnumeratorSortedBy: nil];
PSEntry *entry;
// Go through each entry and print out the title, authors, and content
while (entry = [entries nextObject]) {
[internalArray addObject:entry.title];
//NSLog(#"Entry Title:%#", entry.title);
//NSLog(#"Entry Authors:%#", entry.authorsForDisplay);
[test reloadData];
//NSLog(#"Entry Content:%#", entry.content.plainTextString);
}
}
-(int)numberOfRowsInTableView:(NSTableView *)aTableView{
NSLog(#"%#", [internalArray count]);
return [internalArray count];
}
-(id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex
{
NSString *string = [internalArray objectAtIndex:rowIndex];
NSLog(#"%#", string);
// when I debug, I get same pointers with invalid data
// each object has "name" message
// this following line gives invalid pointer and
// it crashes
return string;
}
-(void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex
{
NSString *string = [internalArray objectAtIndex:rowIndex];
NSLog(#"%#", string);
// when I debug, I get same pointers with invalid data
// each object has "name" message
// this following line gives invalid pointer and
// it crashes
return string;
}
#end
In IB I have the tableview (test) hooked up to the app delegate: test, datasource, and delegate
For some reason the table isn't displaying the data, and when I call [test reloadData]; the app crashes

Answer 1

Number one with a bullet - you don't retain internalArray after you create it. Use one of:
internalArray = [[NSMutableArray] alloc] init];
internalArray = [[NSMutableArray array] retain];
instead of what you currently have:
internalArray = [NSMutableArray array];
Also, I think you probably don't want %# for the format in this method:
-(int)numberOfRowsInTableView:(NSTableView *)aTableView{
NSLog(#"%#", [internalArray count]);
return [internalArray count];
}
That code will certainly (well, often) cause a crash when you do [tableView reloadData].
In applicationDidFinishLaunching:, you don't need to call reloadData every time you add an object to internalArray. Just do it once at the end of that loop.
Your implementation of setObjectValue:forTableColumn:row: also doesn't make sense. It should look more like this:
-(void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex
{
NSLog(#"%#", anObject);
[internalArray replaceObjectAtIndex:rowIndex withObject:anObject];
}
Hopefully those are some ideas to get you started.