CODEWITHSUNDEEP
iphoneobjective-cuiscrollview
Kenny Wyland
Kenny Wyland

Reputation: 21870

UIScrollView scrollRectToVisible isn't doing anything

I'm not really sure why this isn't working, hopefully you can help me find the missing piece. I have a UIScrollView with paging enabled. I'm using it for side-scrolling through a tutorial. I have a button that when tapped should scroll the user back to the beginning of the tutorial. I originally tried using the scroll view's frame as the rect to scroll to because that CGRect should represent the first page. I've tried a couple of different CGRects to no avail though.

- (IBAction) touchedButtonReturnToBeginning:(id)sender {
    // I've tried several CGRect's, none of which cause the UIScrollView to move.
    // CGRect beginning = self.containerScrollView.frame
    // CGRect beginning = self.containerScrollView.bounds;
    CGRect beginning = CGRectMake(0, 44, 1, 1);
    [self.containerScrollView scrollRectToVisible:beginning animated:YES];
}

I have verified that self.containerScrollView is hooked up in my xib as well as the touchedButtonReturnToBeginning action is connected to my button. I've used my debugger to step through this method, so I have verified that it is getting called. All of the variables are appropriately set, but when I call scrollRectToVisible the scroll view just doesn't do anything.

Any ideas?

Upvotes: 2

Views: 7478

Answers (2)

Kirill Pyulzyu
Kirill Pyulzyu

Reputation: 381

To make scrollRectToVisible works check your self.containerScrollView.contentSize. It should be big enough :)

Upvotes: 5

Lily Ballard
Lily Ballard

Reputation: 185671

I don't know why that wouldn't work, but have you tried [self.containerScrollView setContentOffset:CGPointZero animated:YES]?

Upvotes: 11

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