Hi,
we have an application that observes PDFViewVisiblePagesChanged and PDFViewPageChanged notifications
for detecting the scroll state of a PDFView
NotificationCenter.default.addObserver(self, selector: #selector(handleOnScroll), name: Notification.Name.PDFViewVisiblePagesChanged, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(handleOnScroll), name: Notification.Name.PDFViewPageChanged, object: nil)
With iOS14 this worked like a charm, the notification gets triggered immediately when the user starts scrolling the pdf.
In iOS16 we have issues, it seems that the notifications get triggered/send only after the scrolling has been completed/stopped.
Can anybody confirm this?
Has anybody a solution how we can detect a scrolling PDFView using a different method? Background: While the PDF is scrolling other elements of the UI need to be disabled.
Thanks
Jürgen
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Hi,
does anyboda have details about the coefficient paramaters of the vDSP::twoPoleTwoZeroFilter
method?
https://developer.apple.com/documentation/accelerate/vdsp/3241153-twopoletwozerofilter
I assume that there are two filter, two zero and a gain coefficient, but how is the order, the value range etc?
Thanks
Jürgen