main.py 文件源码

def __init__(self, **kwargs):
        super(LoginScreen, self).__init__(**kwargs)
        self.username_w = TextInput(multiline=False)
        self.password_w = TextInput(password=True, multiline=False)
        self.login_btn = Button(text='Login')
        self.login_btn.bind(on_press=self.login)

        layout = GridLayout()
        layout.cols = 2
        layout.add_widget(Label(text='Username'))
        layout.add_widget(self.username_w)
        layout.add_widget(Label(text='Password'))
        layout.add_widget(self.password_w)
        layout.add_widget(self.login_btn)
        self.add_widget(layout)