如何在kivy中使用浮动布局在应用程序的左下角放置标签？

Question

目标：

• 使用 FloatLayout 将标签锚定到左下角。

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预期结果：

• 标签必须位于左下角，单行。

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实际结果：

• 标签在左下角，但它是双线的。

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参考代码：

class ScreenThree(Screen):

    def __init__(self, **kwargs):
        super(ScreenThree, self).__init__(**kwargs)
        self.video1 = Video(source="somevideo.mpg")
        float_layout = FloatLayout()
        self.label1 = Label(text="Just a place holder video", opacity=0, pos_hint={"x": 0, "bottom": 1}, size_hint=[0.1, 0.1])
        self.label1.texture_size = self.label1.size
        self.label1.text_size = self.label1.texture_size
        self.label1.halign = "center"
        self.label1.valign = "center"
        self.add_widget(float_layout)
        float_layout.add_widget(self.label1)
        float_layout.add_widget(self.video1, index=1)
        self.video1.opacity = 0

    def on_enter(self):
        self.video1.allow_stretch = True
        self.video1.state = "play"
        self.label1.opacity = 1
        Clock.schedule_once(self._adjust_opacity, 2)

    def _adjust_opacity(self, *dt):
        self.video1.opacity = 1

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参考图片：

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非常感谢您的阅读。

Answer 1

在你的行中：

    self.label1 = Label(text="Just a place holder video", opacity=0, pos_hint={"x": 0, "bottom": 1}, size_hint=[0.1, 0.1])

只需将size_hint 更改为[None, 0.1]：

    self.label1 = Label(text="Just a place holder video", opacity=1, pos_hint={"x": 0, "bottom": 1}, size_hint=[None, 0.1])

并删除这些行：

    self.label1.texture_size = self.label1.size
    self.label1.text_size = self.label1.texture_size
    self.label1.halign = "center"
    self.label1.valign = "center"