滾動網格佈局中的BoxLayout Kivy

Question

我已經在這幾個小時現在，嘗試每一種解決方案，我能找到這裏，並試圖隨機的東西.... 我試圖建立在由3個按鍵佈局頂部，然後是可滾動的GridLayout或BoxLayout。我只是無法弄清楚什麼是錯的......我讀過一個響應「綁定佈局的大小以適應自己：」但我使用的是screenmanagement，並且無法弄清楚如何使用我的代碼設置來做到這一點

<HomeScreen>: 
BoxLayout: 
    orientation: "vertical" 
    BoxLayout: 
     size_hint: 1,.1 
     orientation: "horizontal" 
     Button: 
      text:"1" 
     Button: 
      text:"2" 
     Button: 
      text:"3" 
    ScrollView: 
     GridLayout: 
      orientation: "vertical" 
      size_hint_y: None 
      row_default_height: 60 
      cols:1 

      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 
      Button: 

Answer 1

你的代碼是正確的，你只需要指定GridLayout的高度。您可以使用height: self.minimum_height。

重複的例子：

from kivy.app import App 
from kivy.uix.screenmanager import ScreenManager, Screen 
from kivy.lang import Builder 

kv_text = ''' 

<MyScreenManager>: 
    HomeScreen: 

<HomeScreen>: 
    BoxLayout: 
     orientation: "vertical" 
     BoxLayout: 
      size_hint: 1,.1 
      orientation: "horizontal" 
      Button: 
       text:"1" 
      Button: 
       text:"2" 
      Button: 
       text:"3" 
     ScrollView: 
      GridLayout: 
       orientation: "vertical" 
       size_hint_y: None 
       height: self.minimum_height #<<<<<<<<<<<<<<<<<<<< 
       row_default_height: 60 
       cols:1 

       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
       Button: 
''' 

class MyScreenManager(ScreenManager): 
    pass 

class HomeScreen(Screen): 
    pass 

class MyApp(App): 
    def build(self): 
     return HomeScreen() 

def main(): 
    Builder.load_string(kv_text) 
    app = MyApp() 
    app.run() 

if __name__ == '__main__': 
    main() 

輸出：