Kivy类在.py和.kv交互2 [英] Kivy class in .py and .kv interaction 2

问题描述

后续 Kivy类在.py和.kv互动，但更复杂。

这里是我写的完整代码：

data / screens / learnkanji_want.kv 想要的代码，但我不完全明白如何 KanjiOriginScreen（）扮演它在屏幕管理中的角色。

data / screens / learnkanji.kv 的工作原理，但为了这个工作，我必须把 keyb_height 在 KanjiOriginScreen（）（ main.py ）中。但是，我希望代码位于 LayoutFunction（）（ learnkanji.py

问题

如何将 keyb_height c $ c>< LayoutFunction> 文件中的 .kv $ c>

您也可以解释为什么 KanjiOriginScreen：可以放在 learnkanji .kv ，但不包含<

如果有什么不清楚，请问：）

编辑

我发现我没有在learnkanji.kv文件中导入learnkanji.py，导致它无法找到类'LayoutFunction'。

 ＃：import learnkanji data.screens.learnkanji 
  

解决方案

对不起，我不清楚我的问题，但在IRC上的帮助#Kivy我结束具体如下：

learnkanji.py

  class LayoutFunctioning BoxLayout）：
 keyb_height = NumericProperty（260）
  

learnkanji.kv

  KanjiOriginScreen：
 name：'LearnKanji'
全屏：True 
 
 LayoutFunction：
 id：lfunc 
＃... code ... 
 height：lfunc.keyb_height #Instead of root.keyb_height 
  

现在我明白了如何使用id，我可以使用lfunc在LayoutFunction（）中调用我的代码：）

Follow up from Kivy class in .py and .kv interaction , but more complex.

Here is the full code of what I'm writing:

The data/screens/learnkanji_want.kv has how I want the code to be, but I don't fully understand how the class KanjiOriginScreen() plays it's role in screen management.

data/screens/learnkanji.kv works how I want it, but for this to work I have to put keyb_height in class KanjiOriginScreen() (main.py). However I want that code to be in the class LayoutFunction() (learnkanji.py).

Question

How can I put keyb_height in the function LayoutFunction() and access this in the .kv file in <LayoutFunction>?

Could you also explain why KanjiOriginScreen: can be put in learnkanji.kv without < > and the program still recognizes it should use this?

If anything is unclear, please ask :)

Edit

I found out that I didn't import the learnkanji.py in the learnkanji.kv file and that caused that it couldn't find the class 'LayoutFunction'.

#:import learnkanji data.screens.learnkanji

解决方案

Sorry I was not clear with my question, but with the help on IRC on #Kivy I ended up with the following:

learnkanji.py

class LayoutFunctioning(BoxLayout):
    keyb_height = NumericProperty(260)

learnkanji.kv

KanjiOriginScreen:
    name: 'LearnKanji'
    fullscreen: True

    LayoutFunction:
        id: lfunc
        #...code...
        height: lfunc.keyb_height #Instead of root.keyb_height

Now I understand how to use the id, I can use lfunc to call my code in LayoutFunction() :)

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