beamertable of contents
I've got a motivation slide preceding my table of contents slide. So when I show the audience the structure of the remainder of my talk I'd like the \tableofcontents to show the motivation slide in gray. The motivation slide is not in the same section environment as the toc slide (and all the following slides).
Is there a way to do that?
For the case of unnumbered subsections, you can use the optional argument of \AtBeginSubsection:
\documentclass{beamer}
\usetheme{Warsaw}
\setbeamercovered{transparent}
\useoutertheme{infolines}
\AtBeginSubsection[
{\frame<beamer>{\frametitle{Outline}
\tableofcontents[currentsection,currentsubsection]}}%
]%
{
\frame<beamer>{
\frametitle{Outline}
\tableofcontents[currentsection,currentsubsection]}
}
\begin{document}
\section{Test Section}
\begin{frame}test\end{frame}
\subsection[]{Test Subsection}
\begin{frame}test frame of an unnumbered subsection\end{frame}
\end{document}
the initial solution I proposed (it's on the bottom now) was theme-dependent since it involved a redefinition of the footline template (which may vary from them to theme). Here now I present a simpler solution which doesn't depend on the theme used. The idea is to use the background canvas template and a \node (inside a tikzpicture environment with the remember picture,overlay options) to place the button at the desired location:
\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usepackage[brazil]{babel}
\usetheme{Boadilla}
\newcommand\AddButton{%
\setbeamertemplate{background canvas}{%
\begin{tikzpicture}[remember picture,overlay]
\node[anchor=west] at ([yshift=20pt,xshift=1em]current page.south west)
{\hyperlink{toc}{\beamergotobutton{Voltar ao início}}};
\end{tikzpicture}%
}%
}
\title{Apresentação RLZ}
\author{RLZ}
\date{\today}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\begin{frame}[label=toc]
\tableofcontents
\end{frame}
\AddButton
\section{Test Section}
\begin{frame} test frame \thepage \end{frame}
\begin{frame} test frame \thepage \end{frame}
\begin{frame} test frame \thepage \end{frame}
\end{document}
Here's one possibility; the idea is to define a command (\AddButton in my code) that oncludes the button as a part of the footline template used by the Boadilla theme; simply issue the command at the point where the button must be included in all successive frames (you can change the position of the button by changing the lengths used in the lines marked % HERE in my code):
\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage[brazil]{babel}
\usetheme{Boadilla}
\makeatletter
\newcommand\AddButton{%
\setbeamertemplate{footline}
{
\leavevmode%
\vskip-15pt% HERE
\hskip1em\hyperlink{toc}{\beamergotobutton{Voltar ao início}}% HERE
\vskip5pt% HERE
\hbox{%
\begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,center]{author in head/foot}%
\usebeamerfont{author in head/foot}\insertshortauthor\expandafter\beamer@ifempty\expandafter{\beamer@shortinstitute}{}{~~(\insertshortinstitute)}
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,center]{title in head/foot}%
\usebeamerfont{title in head/foot}\insertshorttitle
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,right]{date in head/foot}%
\usebeamerfont{date in head/foot}\insertshortdate{}\hspace*{2em}
\insertframenumber{} / \inserttotalframenumber\hspace*{2ex}
\end{beamercolorbox}}%
\vskip0pt%
}%
}
\makeatother
\title{Apresentação RLZ}
\author{RLZ}
\date{\today}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\begin{frame}[label=toc]
\tableofcontents
\end{frame}
\AddButton
\section{Test Section}
\begin{frame} test frame \thepage \end{frame}
\begin{frame} test frame \thepage \end{frame}
\begin{frame} test frame \thepage \end{frame}
\end{document}
Best Answer
If I understand the question correctly,
\tableofcontents[currentsection](Beamer User Guide, section 10.5) is critical here. The first two frames are shown below, the remaining two frames aren't really relevant.