[Tex/LaTex] Beamer – Using \pause within lstlisting

beamerlistingspause

I am preparing a beamer presentation and using the lstlisting environment in order to put in code. However, I would like to use the \pause command within lstlisting. By definition that is not possible. I am numbering the lines so it is bad if I just end and begin the environment again in order to insert \pause. Any tips?

Best Answer

You can escape to LaTeX (Section 4.14 Escaping to LaTeX of the listings documentation) and use \pause:

\documentclass{beamer}
\usepackage{listings}
\usepackage{bera}

\lstset{basicstyle=\small\ttfamily,
numbers=left,
escapeinside=||
}
\begin{document}

\begin{frame}[fragile]
\begin{lstlisting}
line1 |\pause|
line2 |\pause|
line3
\end{lstlisting}
\end{frame}

\end{document}

Related Solutions

[Tex/LaTex] How to omit a single pause when using \beamerdefaultoverlayspecification{<+->} command

Have a look at section 9.6.4 and section 23.1 of the beamer manual: You can use a dot in the overlay specification (e.g. <.->). The dot is replaced by the current value of beamerpauses minus one, so if you use \item<.->, this item is shown simultaneously with the previous \item.

For example, if you have a list with four items and you want to show the second and the third one at the same time, use \item<.-> for the third item to override the default overlay specification:

\documentclass{beamer}
\begin{document}
\begin{frame}
\begin{itemize}[<+->]
    \item First
    \item Second
    \item<.-> Third
    \item Fourth
\end{itemize}
\end{frame}
\end{document}

[Tex/LaTex] The use of \pause in beamer is causing the unnecessary addition of headers

By putting the \section command inside the frame environment you are ensuring that it is executed for each overlay of that frame. The use of the \pause command then ensures that this is done more than once. So LaTeX thinks that you have three sections called "Study Background" because that particular \section command is executed three times.

It is possible to adapt a LaTeX command to be more "overlay aware" in the sense that it only has its desired effect once per frame - the usual use of this is with counters that need to be hold their value across each overlay. But in this case the simpler solution is the better one: simply move the \section command out of the frame environment (as you have with the later \section commands).

Best Answer

Related Solutions

[Tex/LaTex] How to omit a single pause when using \beamerdefaultoverlayspecification{<+->} command

[Tex/LaTex] The use of \pause in beamer is causing the unnecessary addition of headers

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