scrollView:didMoveToPageAtIndex: not called at the right time

[byonkichi]

Hi All,

TTScrollViewDelegate's scrollView:didMoveToPageAtIndex: method is not
called at the right time.
If you open the 1st page of scrollView content, this method is called.
But, if you flip to the 2st page, is is NOT called.
If you flip to the 3rd page, it is called TWICE.

You can see this behavior using TTCatalog app. (By adding this method
to ScrollViewTestController and conforming to TTScrollViewDelegate
protocol)

Is there any solution to this problem?

[gustaf]

Hi,
did you find a solution to this??

[byonkichi]

Hi, gustaf

> did you find a solution to this??

No, not yet.
I have waited for some response from somebody.
Three 20 source code is a little complicated to me.
But I have to find some solution myself if nobody.
Thank you for your response anyway.

[Buddy Balaa]

use an older version from around mid july id say

[gustaf]

Good idea,
unfortunately these versions contains bugs with Orientation change...

On 31 Aug, 03:19, Buddy Balaa <buddyba...@me.com> wrote:
> use an older version from around mid july id say
>

[gustaf]

Maybe I've found a solution.

This will trigger the scrollView:didMoveToPageAtIndex:
Add the function call [self layoutSubviews]; in
- (void)moveToPageAtIndex:(NSInteger)pageIndex resetEdges:(BOOL)
resetEdges; :

_pageArrayIndex = [self arrayIndexForPageIndex:pageIndex
relativeToIndex:_centerPageIndex];
_centerPageIndex = pageIndex;
[self layoutSubviews];
}

I hope it don't broke anything else.

[Doug Barth]

On Aug 31, 1:33 pm, gustaf <lindqvist.gus...@gmail.com> wrote:
> Maybe I've found a solution.
>
> This will trigger the scrollView:didMoveToPageAtIndex:
> Add the function call  [self layoutSubviews]; in
> - (void)moveToPageAtIndex:(NSInteger)pageIndex resetEdges:(BOOL)
> resetEdges; :
>
>     _pageArrayIndex = [self arrayIndexForPageIndex:pageIndex
> relativeToIndex:_centerPageIndex];
>     _centerPageIndex = pageIndex;
>     [self layoutSubviews];
>   }
>
> I hope it don't broke anything else.

This is essentially the fix I committed in my local fork. The only
difference is I call setNeedsLayout rather than layoutSubviews
directly. Seems to work.

[byonkichi]

Hi, Buddy Balaa, gustaf, Doug

It seems to be working by the solution above.
Thank you all.
It helped a lot!

[冒失的小鬼]

//TTScrollView.m

Thanks , It is resolved ，It took me one day to resolve the problem

- (void)moveToPageAtIndex:(NSInteger)pageIndex resetEdges:(BOOL)

resetEdges{

............

_pageArrayIndex = [self arrayIndexForPageIndex:pageIndex
relativeToIndex:_centerPageIndex];
_centerPageIndex = pageIndex;

//add here
[self layoutSubviews];
}