Question

I am trying to create a horizontal scroll view which has a UILabel as elements, by doing the following in viewDidLoad:

for(int index=0; index < [self.category count]; index++)
    {
        UILabel *label = [[UILabel alloc] init];
        label.text = [self.category objectAtIndex:index];
        label.textColor = [UIColor blackColor];
        CGSize maximumLabelSize = CGSizeMake(100,9999);
        CGSize expectedLabelSize = [[self.category objectAtIndex:index] sizeWithFont:label.font                        
                                      constrainedToSize:maximumLabelSize 
                                          lineBreakMode:UILineBreakModeWordWrap]; 
        label.frame = CGRectMake(5+xOffset, 0, expectedLabelSize.width, 40);

        self.scrollView.contentSize = CGSizeMake(scrollWidth+xOffset,110);
        [self.scrollView addSubview:label];

        xOffset += 170;
    }

However, I can’t see anything when I run the app in the simulator, what am I missing here? Pretty sure that the UIScrollView is connected via the IBOutlet and I know that the text exists as I tried printing that out via NSLog

UPDATE:
Also how do I check which UILabel is clicked? I wanted to know this as well..

Answer 1

If you’re positioning the labels with a frame you should also set autoresizingMask to make sure if you position based on a portrait layout but are testing the app in landscape, your labels don’t get auto-positioned outside the new bounds. Also, make sure to autorelease those labels or else you’ll be leaking memory.