Callback after file is loaded

Product: Pdftron Android Sdk

Product Version:9.2.3

Please give a brief summary of your issue: Need callback after the file is loaded in Pdfviewctrl using PdfViewCtrlTabHostFragment2
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Please describe your issue and provide steps to reproduce it:
I need to call mPdfDoc?.fdfMerge(fdf), what is the callback after the file is loaded in the fragment ?
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Please provide a link to a minimal sample where the issue is reproducible:

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or a way to pass file and xfdf with config for fragment


We have a callback for when a document is loaded called onTabDocumentLoaded(String tag). To access this callback you need to add a HostListener to your PdfViewCtrlTabHostFragment.
Please see sample Kotlin code below

mPdfViewCtrlTabHostFragment.addHostListener(object : PdfViewCtrlTabHostFragment2.TabHostListener {
            override fun onTabDocumentLoaded(tag: String?) {
                //Called when the document has loaded.


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