自定义导航栏

Question

我想知道如何自定义侧边栏，以便它仅显示我当前正在呈现的当前部分和小节，以及如何从标题幻灯片中删除导航栏。

Answer 1

隐藏其他子部分很容易：使用hideothersubsections选项就足够了（无论是主题还是侧边栏外部主题）。隐藏其他部分并不那么简单；它涉及重新定义，\insertverticalnavigation如在中实现的beamerbasenavigation.sty。使用框架的选项可以隐藏标题框架中的导航栏plain。以下示例代码包含所需的代码：

\documentclass{beamer}
\usetheme[hideothersubsections]{PaloAlto}

\makeatletter
\def\insertverticalnavigation#1{%
  \vbox{%
    \def\sectionentry##1##2##3##4##5{%
      \ifnum##5=\c@part%
      \def\insertsectionhead{##2}%
      \def\insertsectionheadnumber{##1}%
      \def\insertpartheadnumber{##5}%
      \hbox{{%
        \usebeamerfont{section in sidebar}\usebeamercolor[fg]{section in sidebar}%
          \hyperlink{Navigation##3}{%
          \ifnum\c@section=##1%
            \ifnum\c@subsection=0\relax%
              {\usebeamertemplate{section in sidebar}}%
            \else%
              \ifx\beamer@nav@css\beamer@hidetext%
                {\usebeamertemplate{section in sidebar}}%
              \else%
                {\usebeamertemplate{section in sidebar shaded}}%
              \fi%
            \fi%
          \else
            %{\usebeamertemplate{section in sidebar shaded}}%
          \fi}}}%
      \beamer@currentsubsection=0\relax\fi}%
    \def\slideentry##1##2##3##4##5##6{}%
    \def\beamer@subsectionentry##1##2##3##4##5{%
      \ifnum##1=\c@part%
      \def\insertpartheadnumber{##1}%
      \def\insertsectionheadnumber{##2}%
      \def\insertsubsectionheadnumber{##3}%
      \def\insertsubsectionhead{##5}%
       \beamer@tocifnothide{\ifnum\c@section=##2\ifnum\c@subsection=##3\beamer@nav@css\else\beamer@nav@oss\fi\else\beamer@nav@ooss\fi}%
      {\hbox{{%
        \usebeamerfont{subsection in sidebar}\usebeamercolor[fg]{subsection in sidebar}%
          \hyperlink{Navigation##4}{%
          \ifnum\c@section=##2%
            \ifnum\c@subsection=##3%
              \ifnum\c@subsubsection=0\relax%
                {\usebeamertemplate{subsection in sidebar}}%
              \else%
                {\usebeamertemplate{subsection in sidebar shaded}}%
              \fi%
            \else%
              {\usebeamertemplate{subsection in sidebar shaded}}%
            \fi%
          \else%
            {\usebeamertemplate{subsection in sidebar shaded}}%
          \fi}}}%
      }%
      \fi}%
    \def\beamer@subsubsectionentry##1##2##3##4##5##6{%
      \ifnum##1=\c@part%
      \def\insertpartheadnumber{##1}%
      \def\insertsectionheadnumber{##2}%
      \def\insertsubsectionheadnumber{##3}%
      \def\insertsubsubsectionheadnumber{##3}%
      \def\insertsubsubsectionhead{##6}%
      \beamer@tocifnothide{\ifnum\c@section=##2\ifnum\c@subsection=##3\beamer@nav@css\else\beamer@nav@oss\fi\else\beamer@nav@ooss\fi}%
      {\hbox{{%
        \usebeamerfont{subsubsection in sidebar}\usebeamercolor[fg]{subsubsection in sidebar}%
          \hyperlink{Navigation##5}{%
          \ifnum\c@section=##2%
            \ifnum\c@subsection=##3%
              \ifnum\c@subsubsection=##4%
                {\usebeamertemplate{subsubsection in sidebar}}%
              \else
                {\usebeamertemplate{subsubsection in sidebar shaded}}%
              \fi%
            \else%
              {\usebeamertemplate{subsubsection in sidebar shaded}}%
            \fi%
          \else%
            {\usebeamertemplate{subsubsection in sidebar shaded}}%
          \fi}}}%
      }%
      \fi}%
    %\beamer@currentsubsection=0\relax%
    \dohead%
  }%
}
\makeatother

\title{The Title}
\author{The Author}
\institute{The Institute}

\begin{document}

\begin{frame}[plain] 
\maketitle
\end{frame}

\section{Test section one}
\begin{frame} test frame for section one\end{frame}
\subsection{Test subsection one one}
\begin{frame} test frame for section one\end{frame}
\subsection{Test subsection one two}
\begin{frame} test frame for section one\end{frame}

\section{Test section two}
\begin{frame} test frame for section two\end{frame}
\subsection{Test subsection two one}
\begin{frame} test frame for section two\end{frame}
\subsection{Test subsection two two}
\begin{frame} test frame for section two\end{frame}

\end{document}