Beamer - 打破框架 - 在所有幻灯片上重复标题

Question

我有一个标题，它将显示在所有框架中。请注意，这不是通常的框架标题，而是框架内容上方的浮动标题（或一些文本）。这可以通过在框架环境中添加标题（或文本）轻松实现。

当允许帧中断时，就会出现问题。当帧被拆分时，标题仅出现在第一张幻灯片上。有没有办法让标题也出现在剩余的幻灯片中？

数学方程

\documentclass{beamer}
\begin{document}
\begin{frame}[allowframebreaks]
\textbf{The Title}
The content that spans over many pages
\end{frame}
\end{document}

Answer 1

引用来自 beamer 用户指南的内容[allowframebreaks]：

使用此选项是邪恶的。

\documentclass{beamer}

\newcommand{\floattitle}[1]{%
    \begin{beamercolorbox}[sep=0.3cm,left,wd=\paperwidth]{frametitle}
     \usebeamerfont{frametitle}%
     \vbox{}\vskip-1ex%
     \strut#1\strut\par%
     \vskip-1ex%
    \end{beamercolorbox}%
}

\makeatletter 
\renewenvironment{beamer@frameslide}{%
  \ifbeamer@autobreak\else%
    \ifx\beamer@againname\@empty%
      {\let\@elt\beamer@restorecounter\beamer@overlaycounterresets}%
    \else%
      {\let\@elt\beamer@labelrestorecounter\beamer@overlaycounterresets}%
    \fi%
  \fi%
  \global\c@beamerpauses=1\relax%
  \expandafter\ifblank\expandafter{\beamer@framestartpage}{%
    \stepcounter{subsectionslide}%
    \xdef\beamer@framestartpage{\the\c@page}% only first time
  }{\clearpage\beamer@notesactions}% cleanup from previous slide
  \hypersetup{pdfpagetransition=R}%
  \hypersetup{pdfpageduration=}%
  \@ifundefined{thispdfpagelabel}{}{%
  \thispdfpagelabel{\insertframenumber}}%
  \xdef\beamer@frameendpage{\the\c@page}% every time
  \xdef\beamer@slidenumber{\the\numexpr\c@page-\beamer@framestartpage+1\relax}%
  \xdef\beamer@overlaynumber{\the\beamer@slideinframe}%
  \beamer@setuplinks%
  \beamer@displaybreak%
  \global\setbox\beamer@zoombox=\box\voidb@x%
  \def\beamer@zoomer{}%
  \beamer@slidehaszoomfalse%
  \gdef\insertframetitle{}%
  \gdef\insertframesubtitle{}%
  \gdef\beamer@frametitle{}%
  \gdef\beamer@shortframetitle{}%
  \gdef\beamer@framesubtitle{}%
  \let\beamer@startcomment=\beamer@startcommentinframe%
  % Start slide:
  \beamer@framenotesbegin%
    \global\setbox\beamer@framebox=\vbox\bgroup%
    \beamer@inframetrue%
    \let\frame=\framelatex% inside frames, use LaTeX's \frame command
    \begin{beamer@framepauses}%
      \refcounter{framenumber}%use frame number for  \label
      \ifbeamer@shrink%
        \hsize=\beamer@shrinkfactorinv\hsize%
        \textwidth=\beamer@shrinkfactorinv\textwidth%
        \linewidth=\beamer@shrinkfactorinv\linewidth%
      \fi%
      % Insert labels if necessary:
      \ifx\beamer@againname\@empty\else%
        \nointerlineskip\vbox to0pt{\vss%
        \label<\the\beamer@slideinframe>{\beamer@againname<\the\beamer@slideinframe>}%
        \ifnum\beamer@slideinframe=1\relax%
          \label<1>{\beamer@againname}%
        \fi%
        }\nointerlineskip%
      \fi%
      \ifx\beamer@framehypertargets\@empty\else%
        \nointerlineskip\vbox to0pt{\vss%
          \beamer@framehypertargets%
          \global\let\beamer@framehypertargets\@empty%
        }\nointerlineskip%
      \fi%
      \vskip-\parskip\vbox{}%
      \ifbeamer@plainframe\nointerlineskip\fi%
    \beamer@checkframetitle}%
    {\par
    \end{beamer@framepauses}%
  \egroup%
  \ifx\beamer@frametitle\@empty%
    \setbox\beamer@frametitlebox=\box\voidb@x%
  \else%
    \setbox\beamer@frametitlebox=\vbox{%
      \vbox{}%
      {\parskip0pt\usebeamertemplate***{frametitle}\vskip0.25em}%
    }%
  \fi%
  \ifbeamer@plainframe%
    \beamer@frametextheight=\paperheight%
  \else%
    \beamer@frametextheight=\textheight%
  \fi%
  \advance\beamer@frametextheight by-\ht\beamer@frametitlebox%
  \advance\beamer@frametextheight by-\dp\beamer@frametitlebox%
  \advance\beamer@frametextheight by-\beamer@frametopskip%
  \ifbeamer@shrink%
    \beamer@shrinkframebox%
  \fi%
  \ifx\beamer@zoomer\@empty
    \setbox\beamer@framebox=\vbox{%
      \nobreak\vbox{}\nobreak\par\nobreak\beamer@entrycode\nobreak%
      \nointerlineskip\unvbox\beamer@frametitlebox%
      \nobreak%
      \ifbeamer@autobreak%
        \vskip\beamer@frametopskipautobreak%
            \floattitle{Frame title}
      \else%
        \vskip\beamer@frametopskip%
      \fi%
      \nobreak%
      \nointerlineskip\box\beamer@zoombox\nointerlineskip%
      \nobreak%
      \ifbeamer@slidehaszoom\box\beamer@framebox\else\unvbox\beamer@framebox\fi%
      % bottom skip is added in autobreakframebox
    }%
    \beamer@autobreakframebox%
  \else%
    \beamer@zoomer%
  \fi%
  \beamer@undolabels%
  \beamer@framenotesend%
  \box\beamer@framebox}


\pretocmd\beamer@checkframetitle{
    \ifbeamer@localanotherslide
    \else
        \floattitle{Frame title}
    \fi
} 
\makeatother

\begin{document}

\begin{frame}
The new arrangment
\end{frame}

\begin{frame}[allowframebreaks]
%\floattitle{Frame title}
The new arrangment

\framebreak

%\floattitle{Frame title}
test
\end{frame}
\end{document}

检查的想法localanotherslide来自beamerbasedecode.sty 中的 \ifbeamer@anotherslide 和 \ifbeamer@localanotherslide