controller.py 文件源码

def userLogin(self):
        content = LoginScreen(root_self = self)

        ##
        self.popup = Popup(
                        title           = 'User Login',
                        content         = content,
                        auto_dismiss    = False,
                        size_hint       = (None, None),
                        size            = (400, 170)
                    )

        # open the popup
        self.popup.open()

    ###