删除 Beamer 的脚注缩进

Question

我看到了这个优秀的答案Beamer 中的左对齐脚注，我很好奇如何修改它以删除脚注上的左缩进。我尝试添加\parindent=0pt以及更改\footnotesep为零\z@空间，但无济于事。

注意如何删除脚注中的缩进？不适用于 Beamer。

% how to get rid of indent?
\documentclass{beamer}

\makeatletter
\renewcommand<>\beamer@framefootnotetext[1]{%
  \global\setbox\beamer@footins\vbox{%
    \hsize\framewidth
    \textwidth\hsize
    \columnwidth\hsize
    \unvbox\beamer@footins
    \reset@font\footnotesize
    \@parboxrestore
    \protected@edef\@currentlabel
         {\csname p@footnote\endcsname\@thefnmark}%
    \color@begingroup
      \uncover#2{\@makefntext{%
        \rule\z@\footnotesep\ignorespaces\parbox[t]{.9\textwidth}{#1\@finalstrut\strutbox}\vskip1sp}}%
    \color@endgroup}%
}
\makeatother

\begin{document}

\begin{frame}
Some text\footnote{This is a footnote spanning more than one line, that now after some modifications is aligned left.}
Some other text\footnote{This is another footnote spanning more than one line, that is also aligned left.}
\end{frame}

\end{document}

Answer 1

您不需要重新定义脚注，只需执行类似操作即可\addtobeamertemplate{footnote}{\hskip -2em}{}。

\documentclass{beamer}
\addtobeamertemplate{footnote}{\hskip -2em}{}
\begin{document}
\begin{frame}
Some text.\footnote{This is a footnote with indent removed.}

Some other text.\footnote{This is a subsequent footnote that is also not indented and spans more than one line.}
\end{frame}
\end{document}

Answer 2

插入负数，如下\hskip所示\footnotesep：

\hskip -1.5em    
    \color@begingroup
      \uncover#2{\@makefntext{%
        \rule\z@\footnotesep\ignorespaces\parbox[t]{.9\textwidth}{#1\@finalstrut\strutbox}\vskip1sp}}%
    \color@endgroup}%

完整代码：

\documentclass{beamer}

\makeatletter
\renewcommand<>\beamer@framefootnotetext[1]{%
  \global\setbox\beamer@footins\vbox{%
    \hsize\framewidth
    \textwidth\hsize
    \columnwidth\hsize
    \unvbox\beamer@footins
    \reset@font\footnotesize
    \@parboxrestore
    \protected@edef\@currentlabel
   {\noindent\csname p@footnote\endcsname\@thefnmark}%
    \hskip -1.5em    
    \color@begingroup
      \uncover#2{\@makefntext{%
        \rule\z@\footnotesep\ignorespaces\parbox[t]{.9\textwidth}{#1\@finalstrut\strutbox}\vskip1sp}}%
    \color@endgroup}%
}
\makeatother
\begin{document}

\begin{frame}
Some text\footnote{This is a footnote spanning more than one line, that now after some modifications is aligned left.}
Some other text\footnote{This is another footnote spanning more than one line, that is also aligned left.}
\end{frame}

\end{document}