如何在 Beamer 中获取没有导航项目符号和小节标题的迷你框架？

Question

我想使用与下面的 MWE 完全相同的 miniframes 主题，但没有导航项目符号和子部分标题。我发现的唯一解决方案是同时修改部分标题（例如，通过删除其他部分）。我想保留 miniframes 主题的第一行，使所有部分可见。

在此先感谢您的帮助 ！

\documentclass[17pt,t,compress]{beamer}


\useoutertheme{miniframes}

\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{section in head/foot shaded}{\color{gray}\usebeamertemplate{section in head/foot}}


\input{pre}
\begin{document}
\section{Section A}

\subsection{Subsection 1}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}

\subsection{Subsection 2}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}

\section{Section B}

\subsection{Subsection 1}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}


\subsection{Subsection 2}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}



\section{Section C}
\subsection{Subsection 1}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}

\subsection{Subsection 2}
\begin{frame}
One frame
\end{frame}


\section{Section D}
\subsection{Subsection 1}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}

\subsection{Subsection 2}
\begin{frame}
One frame
\end{frame}


\end{document}

Answer 1

\documentclass[17pt,t,compress]{beamer}


\useoutertheme{miniframes}

\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{section in head/foot shaded}{\color{gray}\usebeamertemplate{section in head/foot}}

\setbeamertemplate{headline}{%
  \begin{beamercolorbox}[colsep=1.5pt]{upper separation line head}
  \end{beamercolorbox}
  \begin{beamercolorbox}{section in head/foot}
    \vskip2pt\insertsectionnavigationhorizontal{\paperwidth}{}{}\vskip2pt
  \end{beamercolorbox}%
  \begin{beamercolorbox}[colsep=1.5pt]{lower separation line head}
  \end{beamercolorbox}
}



\begin{document}
\section{Section A}

\subsection{Subsection 1}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}

\subsection{Subsection 2}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}

\section{Section B}

\subsection{Subsection 1}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}


\subsection{Subsection 2}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}



\section{Section C}
\subsection{Subsection 1}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}

\subsection{Subsection 2}
\begin{frame}
One frame
\end{frame}


\section{Section D}
\subsection{Subsection 1}
\begin{frame}
One frame
\end{frame}

\begin{frame}
One frame
\end{frame}

\subsection{Subsection 2}
\begin{frame}
One frame
\end{frame}


\end{document}