Question

I have a probem with iOS 5. The application crashes when it tries to execute [scrollView1 setZoomScale:1.1 animated:NO];. This is happening only in iOS 5. The code works correctly in all previous versions of iOS. The application crashes on simulator. I have not yet tried on Device.

Code is simple as below:

// choose minimum scale so image width fits screen
float minScale  = [scrollView1 frame].size.width  / ([scrollView1 frame].size.width-200);
[scrollView1 setMinimumZoomScale:minScale];
scrollView1.maximumZoomScale = 3;
scrollView1.minimumZoomScale = 0.5;
[scrollView1 setZoomScale:1.1 animated:NO];
[scrollView1  setContentOffset:CGPointZero];

The crash is happening when it calls a delegate method which returns.
scrollview object:

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

If I comment setZoomScale then crash goes away. Please help if there is any workaround.

Answer 1

After testing found that it was also crashing on Device with iOS5. Finally I have created a view and placed it inside the ScrollView and in viewForZoomingInScrollView returned the new view for zooming. I think this is a workaround for now.