我刚开始使用kivymd,试图创建一个简单的应用程序,只是为了好玩。我试图创建一个注册屏幕,但当我试图将信息发送到控制台时,它会返回一个错误(kivy.properties.observedict.getattr AttributeError:“超级”对象没有属性“getattr”),我实际上不明白它的意思
白痴
'''
from kivymd.app import MDApp
from kivy.lang.builder import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
from kivymd.uix.button import MDRoundFlatButton
from screen_helper import screen_helper
from kivy.core.window import Window
Window.size = (300, 500)
class MenuScreen(Screen):
pass
class LoginScreen(Screen):
pass
class RegistrarScreen(Screen):
pass
sm = ScreenManager()
sm.add_widget(MenuScreen(name='menu'))
sm.add_widget(LoginScreen(name='login'))
sm.add_widget(RegistrarScreen(name='registrar'))
class MainApp(MDApp):
def build(self):
self.theme_cls.primary_palette = 'Gray'
screen = Builder.load_string(screen_helper)
return screen
def show_data(self):
print(self.root.ids.user.text)
MainApp().run()
'''
.KV
'''
screen_helper = """
ScreenManager:
RegistrarScreen:
<RegistrarScreen>:
name: "register"
MDTextField:
id: user
hint_text: 'Enter your user'
pos_hint: {'center_x':0.5,'center_y': 0.8}
size_hint_x: None
width: 250
MDRoundFlatButton:
id: register_btn
text: "Registrarse"
text_color: 0, 0, 0, 1
line_color: 0, 0, 0, 1
pos_hint: {'center_x':0.5,'center_y': 0.1}
width: 500
on_press: app.show_data()
"""
'''
问题是
show_data()
方法正在尝试访问self.root.ids.user
,但是id
不在self.root
小部件(即ScreenManager
)中。尝试将该方法更改为:相关问题 更多 >
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