new to objective c - help with tiny problem

natronp · Jun 9, 2010

having trouble finding documentation showing how to utilize an object's properties to set the text label for a cell within UITableView's cellForRowAtIndexPath method:

Code:

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
	UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"];
	if(cell == nil) {
		cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"UITableViewCell"] autorelease];
	}
	
//a temporary representation of a class object from an array	
tempObj = [[ItemEntry alloc] init];
	tempObj = [entries objectAtIndex:[indexPath row]];
				  
				  
	//this doesn't work and i'm not sure why...
	[[cell textLabel] setText:[tempObj.entryName]];

	[tempObj release];
	tempObj = nil;
	
	return cell;

	
}

Any help straightening out this total noob is appreciated!

xstep · Jun 9, 2010

I would do an NSLog on the entryName like so;

Code:

NSLog(@"[tempObj.entryName] %@", [tempObj.entryName]);

This allows you see what that text contains, if anything.

I don't see a need to allocate and release tempObj either. All you care about here is the pointer, not recreating the whole object from your array. So I think the following is fine for the affect 5 lines:

Code:

id tempObj = [entries objectAtIndex:[indexPath row]];
[[cell textLabel] setText:[tempObj.entryName]];

Note that you likely want to replace 'id' with the appropriate class name and pointer symbol '*'.

new to objective c - help with tiny problem

natronp

xstep

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