Properly zooming a UIScrollView that contains many subviews Properly zooming a UIScrollView that contains many subviews objective-c objective-c

Properly zooming a UIScrollView that contains many subviews


Exactly,

This is what Apple also is mentioning in the Scroll View Programming Guide:

Just create a view, add all subviews to this view and add the newly created view as a single subview to the scrollview...

Then in the viewForZoomingInScrollView delegate method return the object at Index 0:

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView {    return [self.scrollView.subviews objectAtIndex:0];}


I created the view where I added everything using:

UIView *zoomableView = [[UIView alloc] init];

without setting its frame.

The problem was solved when, after adding all the subviews to it, I set its frame to something large enough to accommodate all the tiled subviews.


You have to return what your going to add views to scroll view as a subviews.

Ex: If you are adding image view to scroll view then write

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