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複選框狀態我想從Python代碼我如何初始化在kivy
我試圖初始化在kivy CheckBox的值(見例),但它不工作。任何人都可以幫忙嗎?
import kivy
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import BooleanProperty
from kivy.properties import StringProperty
class MainScreen(BoxLayout):
BlueText = StringProperty()
Blue = BooleanProperty()
Red = BooleanProperty()
UseColours = BooleanProperty()
def __init__(self, **kwargs):
super(MainScreen, self).__init__(**kwargs)
self.BlueText='Blue'
self.UseColours=True
self.Blue=False
self.Red=True
def doBlue(self,*args):
pass
def doRed(self,*args):
pass
def doUseColours(self,*args):
pass
class BasicApp(App):
def build(self):
return MainScreen()
if __name__ == '__main__':
BasicApp().run()
我的kv文件試圖通過設置'value'來檢查框是否被檢查。這是正確的嗎?
MainScreen:
<MainScreen>:
orientation: "vertical"
GridLayout:
cols: 2
Label:
text: root.BlueText
CheckBox:
group: 'colours'
value: root.Blue
on_active: root.doBlue(*args)
Label:
text: "Red"
CheckBox:
group: 'colours'
value: root.Red
on_active: root.doRed(*args)
Label:
text: "Use colours"
CheckBox:
value: root.UseColours
on_active: root.doUseColours(*args)
感謝Nykakin。我在文檔中查找並沒有發現。我應該在哪裏看? – Psionman
它在這裏:http://kivy.org/docs/api-kivy.uix.checkbox.html#kivy.uix.checkbox.CheckBox.active – Nykakin
謝謝。是的,我讀過,但困惑主動爲啓用:( – Psionman