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SignaturePad Not Responding Correctly When Embedded in UIScrollView #5

@mahmed-sse

Description

@mahmed-sse

Description:

I am using the SignaturePad pod in my iOS application to capture the user's signature. The pod is working as expected when used independently. However, when I embed the SignaturePad in a UIScrollView, I encounter an issue where the scroll view is being triggered instead of the SignaturePad capturing the user's signature.

Steps to Reproduce:

Create a form with a long text, followed by a SignaturePad embedded within a container view.
The container view is added as a child view of a UIScrollView.
Try to draw a signature on the SignaturePad area.

Expected Behavior:

The signature should be captured without triggering any scrolling of the UIScrollView while the user is drawing.

Actual Behavior:

The scroll view begins to scroll when the user tries to draw a signature, making it impossible to capture the signature correctly.

My Environment:

iOS version: 18.4
Xcode version: 16.0
SignaturePad pod version: 1.0.3

Possible Cause:

It seems that the SignaturePad might not be correctly handling touch events when embedded in a scroll view, leading to the scroll view taking over touch gestures.

Additional Information:

I have verified that the issue only occurs when the SignaturePad is placed within a UIScrollView. It works fine when placed in a static view or container without any scrollable behavior.

What I Tried:

I attempted to disable scrolling of the scroll view when the signature drawing begins and re-enable it afterward after conforming my UIViewController to following SignaturePadDelegate methods:


func didStart() {
    scrollView.isScrollEnabled = false
}

func didFinish() {
    scrollView.isScrollEnabled = true
}


This worked partially — but only if the user draws their signature very slowly. If they draw at a normal speed, the scroll view still catches the gesture intermittently and starts scrolling. So the experience is inconsistent and not reliable for typical user behavior.

Would appreciate any insights or a fix for this behavior!

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