2D Toolkit Forum

2D Toolkit => Support => Topic started by: wintermute on July 25, 2013, 06:15:34 am

Title: ScrollableArea disable while touching
Post by: wintermute on July 25, 2013, 06:15:34 am

Hello,

So I'm trying to code something like dragging an item out of a scrollable area. What I do is if I touch something in the scrollable area for more than 0.5 seconds, I disable the scrollable area and create a new "fake" object to drag around the screen. After releasing that object (touch up or mouse button up), I re-enable the scrollable area.

I think I've found a bug.

When a touch is active (i.e. i'm currently scrolling it) then I disable the tk2dScrollableArea script. The variable

Code: [Select]

isSwipeScrollingInProgress is still true. However on the

Code: [Select]

OnDisable() method, you unsubscribe to OnInputUpdate via

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tk2dUIManager.Instance.OnInputUpdate -= BackgroundOverUpdate;
So next time I enable it it won't register to the to the line

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tk2dUIManager.Instance.OnInputUpdate += BackgroundOverUpdate; in

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BackgroundButtonDown()
So when I enabled it, it won't scroll anymore.

Is this a bug or is this intended behaviour? Please advise, thanks!

Title: Re: ScrollableArea disable while touching
Post by: unikronsoftware on July 25, 2013, 01:50:43 pm

No, it isn't intended, but neither did we foresee anyone doing what you're using it for :)
Good find with the bug, and thanks for reporting it.

It should check for and clear both isBackgroundButtonDown and isSwipeScrollingInProgress, so it should read:

Code: [Select]

        if (isBackgroundButtonDown || isSwipeScrollingInProgress)
        {
            if (tk2dUIManager.Instance != null)
            {
                tk2dUIManager.Instance.OnInputUpdate -= BackgroundOverUpdate;
            }
            isBackgroundButtonDown = false;
            isSwipeScrollingInProgress = false;
        }


Title: Re: ScrollableArea disable while touching
Post by: wintermute on July 25, 2013, 03:04:16 pm

Applied your code fix, works now. Thank you!

Title: Re: ScrollableArea disable while touching
Post by: jaz1974 on September 23, 2013, 10:11:05 am

Hi guys,

Sorry to hijack the thread slightly, but I was hoping you might help me on this one?


Any chance you could explain how you are doing the 'if pressed for more than 0.5 secs' part?

I'm a bit of a noob and I'm struggling.

Cheers!

Jaz