Adding an image larger than the iphone view to a UIScrollView

Question

How is an image that is larger than the iphone view size to a UIScrollView?

I tried to add the image to the UIImageView, still not connected to the UIScrollView and the image just shrunk to fit the UIImageView.

How is this structure set up?

Thanks

Answer 1

You may want to do something like that :

- (void) resizeScrollContentView
{
    CGSize  viewSize = _imageView.frame.size;
    CGSize  scrollSize = _scroll.frame.size;
    CGPoint p;

    p.x = 0;
    p.y = 0;

    if(viewSize.width < 320)
    {
        p.x = 160 - (viewSize.width / 2.0);
    }

    if(viewSize.height < 460)
    {
        p.y = 200 - (viewSize.height / 2.0);
    }

    _imageView.frame = CGRectMake(p.x, p.y, _imageView.frame.size.width, _imageView.frame.size.height);

    CGSize endScrollSize;
    endScrollSize = _imageView.frame.size;

    _scroll.contentSize = endScrollSize;
}
- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale
{
    [self resizeScrollContentView];
}

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
    return _imageView;
}