background我想在幻灯片中显示部分并禁用子部分agenda。因此，我不想丢失以下（相关项目、技术、需求和潜在工具）幻灯片中的导航树，如第二张屏幕截图所示。我该如何实现这一点？
特克斯代码
\documentclass[xcolor=dvipsnames]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usetheme{Antibes}
\usecolortheme[named=Maroon]{structure}
\setbeamercovered{transparent}
\title{Test}
\author{Alex XYZ}
\institute{University XYZ}
\date{20.01.16}
\begin{document}
\beamertemplatenavigationsymbolsempty
\begin{frame}
\titlepage
\end{frame}
\begin{frame}
\frametitle{Agenda}
\tableofcontents
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%5
\section{Introduction}
\begin{frame}{Introduction}
\end{frame}
\section{Background}
\subsection{Related Projects}
\begin{frame}{Related Projects: Waze}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Technologies}
\begin{frame}{Technologies}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Requirements}
\begin{frame}{Requirements}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Potential Tool}
\begin{frame}{Potential Tool}
\end{frame}
\section{System Design and Database}
\begin{frame}{System Design and Database}
Content of database.
\end{frame}
\end{document}
答案1
Beamer 有一个内置机制来隐藏目录中的子部分：
\tableofcontents[hidesubsections]
完整 MWE：
\documentclass[xcolor=dvipsnames]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usetheme{Antibes}
\usecolortheme[named=Maroon]{structure}
\setbeamercovered{transparent}
\title{Test}
\author{Alex XYZ}
\institute{University XYZ}
\date{20.01.16}
\begin{document}
\beamertemplatenavigationsymbolsempty
\begin{frame}
\titlepage
\end{frame}
\begin{frame}
\frametitle{Agenda}
\tableofcontents[hidesubsections]
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%5
\section{Introduction}
\begin{frame}{Introduction}
\end{frame}
\section{Background}
\subsection{Related Projects}
\begin{frame}{Related Projects: Waze}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Technologies}
\begin{frame}{Technologies}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Requirements}
\begin{frame}{Requirements}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\subsection{Potential Tool}
\begin{frame}{Potential Tool}
\end{frame}
\section{System Design and Database}
\begin{frame}{System Design and Database}
Content of database.
\end{frame}
\end{document}
