Why does Copenhagen theme not support showing frame numbers?

Question

I want to show Frame Number/Total Frame Number without navigation bar, just like the following picture:

The below MWE works as expect:

\documentclass{beamer}
%\usetheme{Copenhagen}

\beamertemplatenavigationsymbolsempty
\setbeamertemplate{footline}[frame number]{}

\begin{document}

\frame
{
\frametitle{Frame A}
Frame A
}

\frame
{
\frametitle{Frame B}
Frame B
}

\frame
{
\frametitle{Frame C}
Frame C
}

\end{document}

However, if I uncomment the second line %\usetheme{Copenhagen}, the Frame Number/Total Frame Number disappears as follows:

My compiler is TexLive 2018 with xelatex.

Is there any way to show Frame Number/Total Frame Number with Copenhagen theme?

Sorry, that was my fault, see https://tex.stackexchange.com/a/432056/36296 — samcarter_is_at_topanswers.xyz, May 20 '18 at 14:21
The problem has been fixed in https://github.com/josephwright/beamer/commit/04b25165835abcbe39294c9f5d89c371c70ba8c3 and will probably be included in beamer versions >= 3.51. — samcarter_is_at_topanswers.xyz, Jun 04 '18 at 09:23

score 3 · Accepted Answer · answered May 20 '18 at 14:07

To get the desired slide numbering add the following lines:

\setbeamertemplate{footline}[text line]{%
    \parbox{\linewidth}{\vspace*{-8pt}\hfill\hfill\insertframenumber\,/\,\inserttotalframenumber}}

to the preamble as shown in the example:

\documentclass{beamer}
\usetheme{Copenhagen}

\beamertemplatenavigationsymbolsempty
%\setbeamertemplate{footline}[frame number]{}

\setbeamertemplate{footline}[text line]{%
    \parbox{\linewidth}{\vspace*{-8pt}\hfill\hfill\insertframenumber\,/\,\inserttotalframenumber}}

\begin{document}

\frame
{
\frametitle{Frame A}
Frame A
}

\frame
{
\frametitle{Frame B}
Frame B
}

\frame
{
\frametitle{Frame C}
Frame C
}

\end{document}

Why does Copenhagen theme not support showing frame numbers?

1 Answers1