Question

I have a UIScrollView and I wanted the frame height to adjust proportionally when I adjust the width, is this possible? Basically I am talking about auto adjusting the frame height of the UIScrollView when I adjust the width of the UIScrollView? I have tried setting the autoResizingMask to UIViewAutoresizingFlexibleWidth and height, but this doesn’t work

Answer 1

I don’t think there’s an automatic way to do it. but you can added a UIView+SCaleAddition to do this:

@interface UIView(RespectScale)
- (void)setWidthRespect:(float)w;
- (void)setHeightRespect:(float)h;
@end

@implement UIView(RespectScale)
- (void)setWidthRespect:(float)w
{
   float scale = self.bounds.size.width / self.bounds.size.height;
   float h = w/scale;
   CGRect bounds = self.bounds
   bounds.size.width = w;
   bounds.size.height = h;
   self.bounds = bounds;
}

- (void)setHeightRespect:(float)h
{
  //  write it your own
}
@end