Kivy:BoxLayout与GridLayout [英] Kivy: BoxLayout vs. GridLayout

问题描述

BoxLayout(orientation='vertical')与GridLayout(cols=1):

他们俩都做同一件事，不是吗?有理由选择一个吗?

They both do the same thing, no? Is there a reason to choose one over the other?

推荐答案

差异涉及大小和位置.

The differences involves size and position.

通常， GridLayout(cols: 1)总是将元素保留在一列中，而使用BoxLayout时，组织单个小部件的灵活性更大. (orientation: 'vertical').

In general, GridLayout (cols: 1) is always going to keep the elements in one column, whereas there is more flexibility to organize individual widgets when you use BoxLayout (orientation: 'vertical').

这是您可以使用BoxLayout进行操作的一个非常简单的示例，因为它尊重pos_hint，size和size_hint(以及其他诸如center_x，x，y，right，-请注意，它们还取决于BoxLayout的vertical或horizontal方向)，这会影响各个小部件:

Here is a very simple example of something you can do with BoxLayout because it honours pos_hint, size and size_hint (and others such as center_x, x, y, right, - notice that they also depend on the vertical or horizontal orientation of the BoxLayout) which affects individual widgets:

<Test@BoxLayout>:
    orientation: 'vertical'
    Button:
        text: 'a'
        size_hint: None, None
        size: 100,50
        pos_hint: { 'center_x' : .5 }
    Button:
        text: 'b'

这是200x200屏幕上的输出:

This is the output in a 200x200 screen:

如果您尝试执行相同的操作，但改用GridLayout，则会得到以下提示:

If you attempt to do the same but using GridLayout instead, then you get this:

最后，GridLayout具有一些属性来控制列的大小:

Finally, GridLayout has some properties to control the size of the column:

• col_default_width:表示所有列的默认宽度
• col_width:每列的宽度列表(在此无用) 案例，因为我们只有一个)
• col_force_default:它将忽略单个小部件的任何现有的size_hint或size并强制列宽
• minimum_width:因此列不会收缩太多

• col_default_width: for the default width of all the columns
• col_width: a list of widths for each column (not useful in this case since we have just one)
• col_force_default: which will ignore any existing size_hint or size for individual widgets and force the column width
• minimum_width: so the column not shrink too much

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