1

I try to achieve the following: have a background image on a frame and disable the frame to appear in the navigation bullets at the same time. I can do both but not at the same time. If commenting out \begingroup... and \endgroup, the image is shown, but the frame is in the navigation bullets, else the image is not seen. I also tried to change the place of the group and the curly braces around the frame.

A strange thing is that when I comment out the group delimiters, running pdflatex first will give a good result, but after a new compilation it's wrong:

enter image description here

\documentclass{beamer}
\usetheme{Berlin}

\begin{document}
    \section{Sec1}
    \begin{frame}
        Fr1
    \end{frame}


{\setbeamertemplate{headline}{\vskip\headheight}
    \setbeamertemplate{footline}{}
\usebackgroundtemplate{%
    \includegraphics[height=\paperheight]{example-image}
}
\begingroup\makeatletter\let\beamer@writeslidentry\relax
    \begin{frame}
        This frame should not appear among the navigation bullets and the background image should be seen
    \end{frame}
\endgroup
}

\end{document}

With group delimiters:

enter image description here

With commenting out group delimiters:

enter image description here

Phelype Oleinik
  • 70,814
bmv
  • 3,588

1 Answers1

1

Using How to remove some pages from the navigation bullets in Beamer? the bullet is removed and the image is displayed. However, this causes the slide counter to increase, and therefore the bullet for the next normal slide will be placed after a gap:

enter image description here

To fix this you can decrease the slide counter manually.

MWE:

\documentclass{beamer}
\usetheme{Berlin}

\begin{document}
    \section{Sec1}
    \begin{frame}
        Fr1
    \end{frame}


{\usebackgroundtemplate{\includegraphics[height=\paperheight,width=\paperwidth]{example-image}}
\makeatletter
% suppress bullet in navigation
\def\beamer@writeslidentry{\clearpage\beamer@notesactions}
% decrease slide counter manually
\advance\c@subsectionslide -1\relax
\makeatother
% [plain] switches off headline and footline
\begin{frame}[plain]
        This frame should not appear among the navigation bullets and the background image should be seen
    \end{frame}
}

\begin{frame}
        Fr2
\end{frame}

\end{document}

Result:

enter image description here

Note: further side effects may occur, so check the output carefully.

Marijn
  • 37,699