set On Page Changed Listener
open fun setOnPageChangedListener(@Nullable onPageChangedListener: PdfThumbnailBar.OnPageChangedListener)
Sets a listener to be notified of page changing events. Calling this method will replace any previously set listener. You may provide null
to clear the listener.
Parameters
on Page Changed Listener
OnPageChangedListener that should be notified, or
null
to clear the listener.