Alignment of a Theorem Environment in Beamer

Question

Is there a way to center the theorem environment? In the past i have tried minipage.

 \documentclass[hyperref={pdfpagelabels=false},10pt]{beamer}
  \usepackage{lmodern}
 \usepackage{beamerthemeshadow}
 \usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}

 \usetheme{CambridgeUS}
  \usefonttheme{professionalfonts} 

 \setbeamerfont{block title}{series=\bfseries,size=\small}

\setbeamercolor{block title}{fg=white, bg=blue}
 \setbeamercolor{block body}{bg=gray!20!bg}

\setbeamertemplate{theorems}[numbered]
\newtheorem{beisp}{Beispiel}

\addtobeamertemplate{block begin}{%
  \setlength{\textwidth}{0.95\textwidth}%
}{}


\begin{document}
\begin{frame}
\begin{beisp}[Konsumausgaben eines Haushalts]
This is the beginning of Theorem 1.
\end{beisp} 
\end{frame} 
\end{document}

like this? https://tex.stackexchange.com/q/180454/36296 Or do you mean the text inside the block? — samcarter_is_at_topanswers.xyz, Jan 16 '18 at 20:30
Yes, exactly. But it is too time-consuming to write center/minipage every time. I hope there is an simpler solution — user150752, Jan 16 '18 at 20:35

samcarter_is_at_topanswers.xyz · Accepted Answer · 2018-01-16T21:19:50.600

1

Based on https://tex.stackexchange.com/a/180462/36296

\documentclass{beamer}

\usetheme{CambridgeUS}

\setbeamerfont{block title}{series=\bfseries,size=\small}
\setbeamercolor{block title}{fg=white, bg=blue}
\setbeamercolor{block body}{bg=gray!20!bg}

\setbeamertemplate{theorems}[numbered]
\newtheorem{beisp}{Beispiel}

\makeatletter
\setbeamertemplate{theorem begin}{%
    \begin{center}
    \begin{minipage}{0.7\textwidth}
  \begin{\inserttheoremblockenv}
    {%
      \inserttheoremname
      \inserttheoremnumber
      \ifx\inserttheoremaddition\@empty\else\ (\inserttheoremaddition)\fi%
    }%
}

\setbeamertemplate{theorem end}{%
    \end{\inserttheoremblockenv}
    \end{minipage}
    \end{center}
}
\makeatother

\begin{document}

\begin{frame}

\begin{beisp}[Konsumausgaben eines Haushalts]
    This is the beginning of Theorem 1.
\end{beisp} 

\end{frame} 
\end{document}

edited Jan 16 '18 at 21:19

answered Jan 16 '18 at 20:37

samcarter_is_at_topanswers.xyz

158,329

One morev question: Is there a way to numerate the theorem? – user150752 Jan 16 '18 at 20:57
@Eric \setbeamertemplate{theorems}[numbered] – samcarter_is_at_topanswers.xyz Jan 16 '18 at 20:58
It is already integrated in my code. But there is no numbering – user150752 Jan 16 '18 at 21:12
I guess your code overwrite the command – user150752 Jan 16 '18 at 21:12
When i put it afterwards the block environment in numbered, but it is in 100% textwide – user150752 Jan 16 '18 at 21:14
@Eric Please see my edited answer. – samcarter_is_at_topanswers.xyz Jan 16 '18 at 21:20
Perfect. Is there a way to include the text size in this definition? The text in the bos should be in footnotesize? – user150752 Jan 16 '18 at 21:36
@Eric Comments are not the best place to ask new questions. – samcarter_is_at_topanswers.xyz Jan 16 '18 at 21:44

Alignment of a Theorem Environment in Beamer

1 Answers1