Kivy matplotlib — 如何删除多余的空白

Question

我在 Kivy 的 GUI 中有 matplotlib 我正在使用 FloatLayout 来放置我的小部件，但是当我添加 plot 时，它会在我的 GUI 中添加额外的空白，然后尝试调整它的左侧空间但它不起作用，也不会响应我尝试进行的尺寸更改，任何帮助将不胜感激。

如果你没有kivy-garden

从这里开始安装 kivy 花园

然后在 cmd 中运行这些命令

pip3 install matplotlib
garden install matplotlib

这是我下面的代码：

from kivy.garden.matplotlib.backend_kivyagg import FigureCanvasKivyAgg
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
import matplotlib.pyplot as plt
import numpy as np
from kivy.uix.floatlayout import FloatLayout


N = 5
menMeans = (20, 35, 30, 35, 27)
menStd = (2, 3, 4, 1, 2)

ind = np.arange(N)  # the x locations for the groups
width = 0.35       # the width of the bars

figure, ax = plt.subplots()
fig1 = plt.gcf()
rects1 = ax.bar(ind, menMeans, width, color='b', yerr=menStd)

womenMeans = (25, 32, 34, 20, 25)
womenStd = (3, 5, 2, 3, 3)
rects2 = ax.bar(ind + width, womenMeans, width, color='y', yerr=womenStd)

# add some text for labels, title and axes ticks
ax.set_ylabel('Scores')
ax.set_title('Scores by group and gender')
ax.set_xticks(ind + width)
ax.set_xticklabels(('G1', 'G2', 'G3', 'G4', 'G5'))
ax.legend((rects1[0], rects2[0]), ('Men', 'Women'))

def autolabel(rects):
# attach some text labels
    for rect in rects:
        height = rect.get_height()
        ax.text(rect.get_x() + rect.get_width() / 2., 1.05 * height, '%d' %
        int(height), ha='center', va='bottom')

autolabel(rects1)
autolabel(rects2)

plt.draw()


class MyApp(App):

    def build(self):
        box = FloatLayout()

        fig = FigureCanvasKivyAgg(plt.gcf())

        fig.size_hint_x = 0.5
        fig.size_hint_y =0.5
        fig.pos_hint={"x":0.32, "y": 0}
        box.add_widget(fig)
        return box

MyApp().run()

这是我想删除左侧多余空白的示例运行