将页脚添加到部分的 start/title 页面

Question

我正在创建 RMarkdown Beamer 幻灯片 模板并使用 metropolis 主题作为基础。这已经包括：

编号目录
隐藏扉页页脚

现在我想将页脚添加到该部分的 start/title 页（该页面仅包含幻灯片中间下一部分的标题）。我试图通过此代码 snipet

在此页面上显示页脚

  - |
    \makeatletter
    \def\ps@sectionpage{%
      \setbeamertemplate{frame footer}{\tiny{\textcolor{beaublue}{Conference 56. Jahrestagung der DGSMP, 2021 | SIMON RESS}}}
    }
    \addtobeamertemplate{section page}{\thispagestyle{sectionpage}}{}
    \makeatother

，但它不起作用。

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
    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 | SIMON RESS}}}
#hide footer on title page:
  - |
    \makeatletter
    \def\ps@titlepage{%
      \setbeamertemplate{footline}{}
    }
    \addtobeamertemplate{title page}{\thispagestyle{titlepage}}{}
    \makeatother
#show footer on section's start/title pages
  - |
    \makeatletter
    \def\ps@sectionpage{%
      \setbeamertemplate{frame footer}{\tiny{\textcolor{beaublue}{Conference 56. Jahrestagung der DGSMP, 2021 | SIMON RESS}}}
    }
    \addtobeamertemplate{section page}{\thispagestyle{sectionpage}}{}
    \makeatother
#add secrtion numbers to TOC:
  - |
    \setbeamertemplate{section in toc}{
    \leavevmode%
    \inserttocsectionnumber. 
    \inserttocsection\par%
    }
    \setbeamertemplate{subsection in toc}{
    \leavevmode\leftskip=2.5em\inserttocsubsection\par}
---

```{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)
```

Answer 1

metropolis 主题对其部分页面使用硬编码 plain,c,noframenumbering，但您可以像这样覆盖它们的定义：

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

output:
  beamer_presentation:
    keep_md: true
    keep_tex: true
    latex_engine: xelatex
    #theme: metropolis
    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 | SIMON RESS}}}
#hide footer on title page:
  - |
    \makeatletter
    \def\ps@titlepage{%
      \setbeamertemplate{footline}{}
    }
    \addtobeamertemplate{title page}{\thispagestyle{titlepage}}{}
    \makeatother
#show footer on section's start/title pages
  - |
    \makeatletter
    \def\ps@sectionpage{%
      \setbeamertemplate{frame footer}{\tiny{\textcolor{beaublue}{Conference 56. Jahrestagung der DGSMP, 2021 | SIMON RESS}}}
    }
    \addtobeamertemplate{section page}{\thispagestyle{sectionpage}}{}
    
    \makeatother
#add secrtion numbers to TOC:
  - |
    \setbeamertemplate{section in toc}{
    \leavevmode%
    \inserttocsectionnumber. 
    \inserttocsection\par%
    }
    \setbeamertemplate{subsection in toc}{
    \leavevmode\leftskip=2.5em\inserttocsubsection\par}
    \makeatletter
    \renewcommand{\metropolis@enablesectionpage}{
      \AtBeginSection{
        \ifbeamer@inframe
          \sectionpage
        \else
          \frame[c]{\sectionpage}
        \fi
      }
    }
    \metropolis@enablesectionpage
    \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)
```

将页脚添加到部分的 start/title 页面

Add footer to section's start/title page

latex

r

footer

beamer

r-markdown