在更改时显示 kivy 滑块值

2022-01-15 00:00:00 python kivy slider

问题描述

我想知道是否可以将 kivy 微调器值显示为移动标签，以便用户确切知道滑块的当前值是什么.

I was wondering whether it was possible to displays kivy spinner values as a moving label, so that the user knows exactly what the current value of the slider is.

谢谢

解决方案

你只需绑定一个监听器到值改变事件

you just bind a listener to the value change event 

some_label = Label(...)
my_slider = Slider(...)
def OnSliderValueChange(instance,value):
    some_label.text = str(value)

my_slider.bind(value=OnSliderValueChange)

正如 .kv 文件中指出的那样，您可以执行类似的操作

as inclement points out in the .kv file you could do something like

<PongGame>:
    ...
    canvas:
        Rectangle:
            ...
    Label:
        ...
        text: str(slider_id.value)
     Slider:
        ...
        id: slider_id

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