Kivy ScrollView-不滚动 [英] Kivy ScrollView - Not Scrolling

问题描述

看起来像人们在使用Kivy时遇到的常见问题.我已经在这里检查过其他问题，是否有同样的问题，但是没有运气.

Looks like a common problem people have with Kivy. I've already checked other questions for the same problem here on SO but no luck.

我有一个容器 BoxLayout :

class Cnt(BoxLayout):
    pass

在 .kv 文件中，我有类似以下内容:

In the .kv file I've got something like this:

<Cnt>:
    orientation: 'vertical'
    ScrollView:
        size_hint: (1, .9)
        StackLayout:
            padding: 5
            size_hint_y: None
            id: content_layout
            minimum_height: self.height
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
            ARow:
    BoxLayout:
        size_hint: (1, .1)
        Label:
            text: 'A'

ARow 是具有 CheckBox 和 Label 的 BoxLayout .它具有:

ARow is a BoxLayout with a CheckBox and a Label. It has:

size_hint: (1, None)
height: 40

据我所知，这是唯一可以对滚动产生某些作用的重要事情.

As far as I understand these are the only two important things that could do something to the scrolling.

minimum_height:self.height 与如果我理解正确的话，将在Python代码中绑定 StackLayout 的minimum_height和高度相同.

minimum_height: self.height is the same as if I would bind the minimum_height and height of the StackLayout in Python code if I understood it right.

推荐答案

更改

minimum_height: self.height

到

height: self.minimum_height

minimum_height是根据所有子代的需要计算得出的.您希望实际高度等于最小高度，即使它大于父级的高度(对于滚动，这正是您想要的高度).

The minimum_height is what's calculated as needed for all the children. You want the actual height to be equal to the minimum height, even if it's larger than the parent's height (for scrolling, this is exactly what you want).

这篇关于Kivy ScrollView-不滚动的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！