代码

Question

我从 Beamer 中的基本 Berkeley 主题开始。我想修改页脚以包含幻灯片中央的页码。但是，修改后的页脚元素似乎“堆叠”在幻灯片底部，这会使幻灯片内容向上移动并切断侧边栏的底角。

我希望幻灯片看起来与基本主题完全一样，只是页码粘贴在底部居中。我希望侧边栏一直延伸到幻灯片底部。我需要修改什么才能做到这一点？

示例代码：

\documentclass{beamer}
\usetheme[width=2.0cm]{Berkeley}

%% **this part modifies footline to include slide numbers**

\setbeamertemplate{footline}{%
 \leavevmode%
 \hbox{\begin{beamercolorbox}[wd=\paperwidth,ht=2.25ex,dp=1ex,center]{frame number}%
 \vskip0pt
   \usebeamerfont{footline}\usebeamercolor[fg]{footline}\insertframenumber/\inserttotalframenumber
 \vskip0pt
\end{beamercolorbox}%
}%
 \vskip0pt%
}

\usepackage[utf8]{inputenc}

\title{Sample title}
\author{Anonymous}
\institute{ShareLaTeX}
\date{2013}

\begin{document}

\frame{\titlepage}

\begin{frame}
\frametitle{Sample frame title}
This is a text in first frame. This is a text in first frame. This is a text in first frame.
\end{frame}

\end{document}

Answer 1

您可以设置ht=0pt, dp=0pt的beamercolorbox高度为零。然后，调整第二个\vskip以从底部边缘提高页码。要删除导航栏，只需使用\setbeamertemplate{navigation symbols}{}，这不会影响页码。

代码

\documentclass{beamer}
\usetheme[width=2.0cm]{Berkeley}

%% **this part modifies footline to include slide numbers**
\setbeamertemplate{footline}{%
  \leavevmode%
  \hbox{\begin{beamercolorbox}[wd=\paperwidth,ht=0ex,dp=0ex,center]{frame number}%
    \vskip0pt
    \usebeamerfont{footline}\usebeamercolor[fg]{footline}
    \insertframenumber/\inserttotalframenumber
    \vskip.5ex
    \end{beamercolorbox}%
  }%
  \vskip0pt%
}
% \setbeamertemplate{navigation symbols}{} % to remove navigation bar


\usepackage[utf8]{inputenc}

\title{Sample title}
\author{Anonymous}
\institute{ShareLaTeX}
\date{2013}

\begin{document}

\frame{\titlepage}

\begin{frame}
\frametitle{Sample frame title}
This is a text in first frame. This is a text in first frame. This is a text in first frame.
\end{frame}

\end{document}

输出