AndroidPdfViewer with Supporting Android API >=21

[lion1988dev]

New version of AndroidPdfViewer library, with supporting Android API >= 21. Implemented updated version of PdfiumAndroid with the latest version of pdfium so libraries

[marain87]

Thank you @lion1988dev,

However, I’ve encountered an issue with the new version of the library: it doesn’t display annotations and signatures on PDF files. To address this, I made some modifications to the code in PdfiumAndroid and submitted a pull request to your branch.

It is related to FPDF_FFLDraw not called for new version of Pdfium render annotation and signature.
code ref to sample of pdfium

Demo of my AndroidPdfViewer