Add Overlays in beamer \tableofcontents items

Question

I'm writing a presentation in beamer.

I want to show semi-transparent overlays in the table of contents items. I mean, I want to show the current item text in black color and the next ones in gray.

Thanks in advance.

Answer 1

In your preamble add \setbeamercovered{transparent} to make inactive overlay items transparent. The table of contents can be displayed emphasizing only the "current section" by using the optional parameter:

\frame{\tableofcontents[currentsection]}

If you want to uncover the table of contents section-by-section use the pausesections option:

\documentclass{beamer}

\setbeamercovered{dynamic}
\useinnertheme{rectangles}

\begin{document}
\frame{\tableofcontents[pausesections]}
\section{One}
\frame{One}
\section{Two}
\frame{Two}
\section{Three}
\frame{Three}
\end{document}

Please see the beamer user guide for additional options.