iOS Zooming In UIScrollView

[loon3y]

how do i enable zooming in in UIScroll View, most examples and tutorials include a UIImageView, and i don't need that.


whats the simplest way to implement zooming in a scrollview?

 

[jnoxx]

Zooming on what.. You need to set contentsizes of the scrollview depending on what it is, etc.

 

[loon3y]

Zooming on what.. You need to set contentsizes of the scrollview depending on what it is, etc.

just zooming in on the UIScroll View, because of i have a lot of details on there i want the user to zoom up if needed to but its just a UIscroll view with labels and textfields, I'm gonna also have a signature capturing module in there.

so i want them to zoom in so they can sign easier.

- (void)viewDidLoad
{
   
    [super viewDidLoad];
    
    scrollView.frame = CGRectMake (0, 0, 320, 460);
    [scrollView setContentSize:CGSizeMake(320, 600)];
    
}

 

[loon3y]

heres my coding, can anyone tell me whats wrong with it?


when I try to zoom i get a sigbart error

- (void)viewDidLoad
{
    
    [scrollView setScrollEnabled:YES];
    scrollView.frame = CGRectMake (0, 0, 320, 460);
    [scrollView setContentSize:CGSizeMake(320, 600)];
    [scrollView setMaximumZoomScale:4];
    [scrollView setMinimumZoomScale:1];
    self.scrollView.delegate=self;
    
    
    
}



- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
    return scrollView;  // i get an error here I've tried declaring my scollview as scrollvieww, same result so i don't know if thats important.
}

 

[chown33]

You can't return the scroll view itself.

You should look at the UIScrollView reference doc.
http://developer.apple.com/library/...crollView.html#//apple_ref/doc/uid/TP40006922
Look for the words "sample code". Then pick one of the sample code projects and study it.

You need to understand the difference between the container (the UIScrollView) and the contents (whatever's inside the container).

You should probably review the Scroll View Programming Guide, too.