Clever Geek Handbook

UIScrollView reset contentOffice

I have a UIScrollView whose content is shifting all the time for some random reason. Has anyone ever encountered this problem? I had the content offset to 100 and then it resets back the scroll to the top. Any way to prevent this?

So here is the code / hack I did to get it working in the contentOffset setting:

 [self.currentViewController_ performSelector:@selector(scrollToOffset:) withObject:nil afterDelay:0.1];

and in my currentViewController class I have

-(void)scrollToOffset: (CGFloat) yOffset
{
    [[self.webView_ defaultScrollView] setContentOffset:CGPointMake(0, -44) animated:YES];
}
+3


source to share


3 answers


I had a similar problem. In my case, the problem was that I set the size of the scroll content in viewDidLayoutSubviews. When I tried to scroll the view backwards programmatically, the viewDidLayoutSubviews was called and this caused the content size to be reset.



+2


source


You can stop the animation from stopping when the first animation ends.

Use this delegate call:

- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView


And call this method inside it:

   [self setContentOffset:self.contentOffset animated:NO];
+1


source


Could there be a problem with the .contentSize property of the scrollView? Have you installed it correctly?

-1


source






More articles:


All Articles