TOPIC:

public class PdfViewManager extends SimpleViewManager<RelativeLayout> {

    public static final String REACT_CLASS = "RCTRadaeePDF";
    private ThemedReactContext context;
    private Document m_doc;
    private PDFFileStream m_stream;
    private RelativeLayout m_layout;
    private PDFViewPager m_pager;

    public PdfViewManager(Activity mActivity) {
        Global.Init(mActivity);
        Global.debug_mode = false;
    }

    @Override
    public String getName() {
        return REACT_CLASS;
    }
    @Override
    public RelativeLayout createViewInstance(ThemedReactContext context) {
        m_layout = (RelativeLayout) LayoutInflater.from(context).inflate(com.radaee.viewlib.R.layout.pdf_fragment, null);
        m_pager = (PDFViewPager)m_layout.findViewById(R.id.pdf_pager);
        this.context = context;
        return m_layout;
    }
    @ReactProp(name = "src")
    public void setSrc(RelativeLayout view, @Nullable String src) {
        m_doc = new Document();
        m_stream = new PDFFileStream();
        boolean ok = m_stream.open(src);
        if( !ok ) return;
        int ret = m_doc.OpenStream(m_stream, null);
        if( ret != 0 )
        {
            m_doc.Close();
            m_doc = null;
            return;
        }
        m_pager.PDFOpen(m_doc,1);
    }
    @ReactProp(name = "pageNumber")
    public void setPageNumber(RelativeLayout view, int pageNum) {
        m_pager.setCurrentItem(pageNum);
    }
}