Rmd: 在标题和内容页上隐藏页脚

Question

我正在创建 RMarkdown Beamer 幻灯片 模板，并使用 metropolis 主题作为基础。

现在我想添加一个页脚，左侧是一些文本，右侧是幻灯片编号。这样可行。此外，整个页脚不应显示在标题和内容页面上。 如何控制显示脚线的位置？

这是我的（最小工作示例）：

slides.rmd

---
title: "Title"
subtitle:  "Subtitle"
author: "Simon"
institute: "RUB"
date: "September 22, 2021"

output:
  beamer_presentation:
    keep_md: true
    keep_tex: no
    latex_engine: xelatex
    #theme: metropolis
    includes:
      in_header:
          #- toc.tex
    slide_level: 2 # which header level should be printed as slides
    incremental: no
header-includes:
  - \usetheme[numbering=fraction]{metropolis}
  - \definecolor{beaublue}{rgb}{0.74, 0.83, 0.9}
  - \setbeamertemplate{frame footer}{\tiny{\textcolor{beaublue}{Conference 56. Jahrestagung der DGSMP, 2021}}}

---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
```


## Content
\tableofcontents[]

# Level I

Test

## Slide with Bullets

- Bullet 1
- Bullet 2
- Bullet 3

# Slide with R Output

```{r cars, echo = TRUE}
summary(cars)
```

我知道在 Latex 中可以通过 begingroup & endgroup 命令结合 plain-option ({}) 用于 [=16] =]:

\documentclass{beamer}

\setbeamertemplate{footline}[frame number]

\begin{document}

\begin{frame}
normal frame
\end{frame}

\begingroup
\setbeamertemplate{footline}{}
\begin{frame}
without footline
\end{frame}
\endgroup

\begin{frame}
normal frame
\end{frame}

\end{document}

但是不知道如何在RMarkdown中实现

Answer 1

要从您的标题页和目录页中删除脚注，您可以使用与 https://topanswers.xyz/tex?q=1004#a1198

中相同的技巧

将以下内容添加到您的 header 包括：

\makeatletter
\def\ps@navigation@titlepage{%
  \setbeamertemplate{footline}{}
  \@nameuse{ps@navigation}
}
\addtobeamertemplate{title page}{\thispagestyle{navigation@titlepage}}{}
\pretocmd{\tableofcontents}{\thispagestyle{navigation@titlepage}}{}{}
\makeatother

（请注意语法 \tiny{...} 是错误的。这个宏是一个开关，不带参数。您可以改用 {\tiny ...}

---
title: "Title"
subtitle:  "Subtitle"
author: "Simon"
institute: "RUB"
date: "September 22, 2021"

output:
  beamer_presentation:
    keep_md: true
    keep_tex: no
    latex_engine: xelatex
    #theme: metropolis
    includes:
      in_header:
          #- toc.tex
    slide_level: 2 # which header level should be printed as slides
    incremental: no
header-includes:
  - \usetheme[numbering=fraction]{metropolis}
  - \definecolor{beaublue}{rgb}{0.74, 0.83, 0.9}
  - \setbeamertemplate{frame footer}{{\tiny\textcolor{beaublue}{Conference 56. Jahrestagung der DGSMP, 2021}}}
  - \makeatletter
  - \def\ps@navigation@titlepage{\setbeamertemplate{footline}{}\@nameuse{ps@navigation}}
  - \addtobeamertemplate{title page}{\thispagestyle{navigation@titlepage}}{}
  - \pretocmd{\tableofcontents}{\thispagestyle{navigation@titlepage}}{}{}
  - \setbeamertemplate{section in toc}{\leavevmode\inserttocsectionnumber. \inserttocsection\par}
  - \makeatother
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
```


## Content
\tableofcontents[]

# Level I

Test

## Slide with Bullets

- Bullet 1
- Bullet 2
- Bullet 3

# Slide with R Output

```{r cars, echo = TRUE}
summary(cars)
```

Rmd: 在标题和内容页上隐藏页脚

Rmd: Hide FOOTER on title&content page

latex

footer

beamer

r-markdown