Why subfigure are not centered

Question

I'm using beamer with subfigure. I would center it but doesn't work. Why? A MWE follows:

\documentclass{beamer}
\mode<presentation>

\usetheme{Warsaw}
\usepackage[utf8]{inputenc}

\begin{document}
        \begin{frame}
            \begin{figure}\centering
                \parbox{1.3in}{
                    A
                }
                \qquad
                \begin{minipage}{1.3in}
                    B           
                \end{minipage}
            \end{figure}
        \end{frame} 
\end{document}

Answer 1

As you can see in next code, your figure is already centered, but what parbox and minipage contain is not centered. As percusse and egreg told you, move \centering inside both environments and you will have everithing centered.

\documentclass{beamer}
\mode<presentation>

\usetheme{Warsaw}
\usepackage[utf8]{inputenc}
\usepackage{lipsum}

\begin{document}
        \begin{frame}

\lipsum[2]

        \begin{figure}
                \fbox{\parbox{1.3in}{%
                    A
                }}
                \qquad\fbox{%
                \begin{minipage}{1.3in}
                    B           
                \end{minipage}}
            \end{figure}

        \begin{figure}
                \fbox{\parbox{1.3in}{\centering
                    A
                }}
                \qquad\fbox{%
                \begin{minipage}{1.3in}\centering
                    B           
                \end{minipage}}
            \end{figure}

        \end{frame} 
\end{document}