Kivy：多个屏幕和菜单项没有实现

from kivy.app import App from kivy.lang import Builder from kivy.uix.screenmanager import ScreenManager, Screen from kivy.base import runTouchApp from kivy.uix.floatlayout import FloatLayout from kivy.uix.button import Button from kivy.properties import NumericProperty #Code Starts here Builder.load_string(""" #:import random random.random #:import NoTransition kivy.uix.screenmanager.NoTransition <MenuScreen>: hue: random() canvas: Color: hsv: self.hue, .5, .12 Rectangle: size: self.size Button: text: 'Home' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.95} size: 150, 50 on_release: root.manager.current = 'home' on_release: root.manager.transition = NoTransition(duration=0) Button: text: 'Login History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.88} size: 150, 50 on_release: root.manager.current = 'loginhistory' on_release: root.manager.transition = NoTransition(duration=0) Button: text: 'Alarm History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.81} size: 150, 50 on_release: root.manager.current = 'alarmhistory' on_release: root.manager.transition = NoTransition(duration=0) Button: text: 'User Management' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.74} size: 150, 50 on_release: root.manager.current = 'usermanagement' on_release: root.manager.transition = NoTransition(duration=0) Button: text: 'Call SoS' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.67} size: 150, 50 on_release: root.manager.current = 'callsos' on_release: root.manager.transition = NoTransition(duration=0) Button: text: 'Settings' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.60} size: 150, 50 on_release: root.manager.current = 'settings' on_release: root.manager.transition = NoTransition(duration=0) Button: text: 'Call RealTec' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.53} size: 150, 50 on_release: root.manager.current = 'callrealtec' on_release: root.manager.transition = NoTransition(duration=0) BoxLayout: size_hint: .5, None height: 250 pos_hint: {'center_x': .5} orientation: 'vertical' <HomeScreen>: hue: random() canvas: Color: hsv: self.hue, .5, .2 Rectangle: size: self.size Button: background_color: [1, 2, 1, 2] text: 'Home' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.95} size: 150, 50 Button: text: 'Login History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.88} size: 150, 50 on_release: root.manager.current = 'loginhistory' Button: text: 'Alarm History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.81} size: 150, 50 on_release: root.manager.current = 'alarmhistory' Button: text: 'User Management' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.74} size: 150, 50 on_release: root.manager.current = 'usermanagement' Button: text: 'Call SoS' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.67} size: 150, 50 on_release: root.manager.current = 'callsos' Button: text: 'Settings' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.60} size: 150, 50 on_release: root.manager.current = 'settings' Button: text: 'Call RealTec' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.53} size: 150, 50 on_release: root.manager.current = 'callrealtec' Button: text: 'Main Menu' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.46} size: 150, 50 on_release: root.manager.current = 'menu' BoxLayout: size_hint: .5, None height: 250 pos_hint: {'center_x': .5} orientation: 'vertical' <LoginHistoryScreen>: hue: random() canvas: Color: hsv: self.hue, .5, .9 Rectangle: size: self.size Button: text: 'Home' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.95} size: 150, 50 on_release: root.manager.current = 'home' Button: text: 'Login History' background_color: [1, 2, 1, 2] size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.88} size: 150, 50 Button: text: 'Alarm History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.81} size: 150, 50 on_release: root.manager.current = 'alarmhistory' Button: text: 'User Management' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.74} size: 150, 50 on_release: root.manager.current = 'usermanagement' Button: text: 'Call SoS' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.67} size: 150, 50 on_release: root.manager.current = 'callsos' Button: text: 'Settings' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.60} size: 150, 50 on_release: root.manager.current = 'settings' Button: text: 'Call RealTec' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.53} size: 150, 50 on_release: root.manager.current = 'callrealtec' Button: text: 'Main Menu' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.46} size: 150, 50 on_release: root.manager.current = 'menu' BoxLayout: size_hint: .5, None height: 250 pos_hint: {'center_x': .5} orientation: 'vertical' <AlarmHistoryScreen>: hue: random() canvas: Color: hsv: self.hue, .5, .6 Rectangle: size: self.size Button: text: 'Home' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.95} size: 150, 50 on_release: root.manager.current = 'home' Button: text: 'Login History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.88} size: 150, 50 on_release: root.manager.current = 'loginhistory' Button: text: 'Alarm History' background_color: [1, 2, 1, 2] size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.81} size: 150, 50 Button: text: 'User Management' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.74} size: 150, 50 on_release: root.manager.current = 'usermanagement' Button: text: 'Call SoS' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.67} size: 150, 50 on_release: root.manager.current = 'callsos' Button: text: 'Settings' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.60} size: 150, 50 on_release: root.manager.current = 'settings' Button: text: 'Call RealTec' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.53} size: 150, 50 on_release: root.manager.current = 'callrealtec' Button: text: 'Main Menu' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.46} size: 150, 50 on_release: root.manager.current = 'menu' BoxLayout: size_hint: .5, None height: 250 pos_hint: {'center_x': .5} orientation: 'vertical' <UserManagementScreen>: hue: random() canvas: Color: hsv: self.hue, .5, .8 Rectangle: size: self.size Button: text: 'Home' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.95} size: 150, 50 on_release: root.manager.current = 'home' Button: text: 'Login History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.88} size: 150, 50 on_release: root.manager.current = 'loginhistory' Button: text: 'Alarm History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.81} size: 150, 50 on_release: root.manager.current = 'alarmhistory' Button: text: 'User Management' background_color: [1, 2, 1, 2] size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.74} size: 150, 50 Button: text: 'Call SoS' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.67} size: 150, 50 on_release: root.manager.current = 'callsos' Button: text: 'Settings' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.60} size: 150, 50 on_release: root.manager.current = 'settings' Button: text: 'Call RealTec' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.53} size: 150, 50 on_release: root.manager.current = 'callrealtec' Button: text: 'Main Menu' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.46} size: 150, 50 on_release: root.manager.current = 'menu' BoxLayout: size_hint: .5, None height: 250 pos_hint: {'center_x': .5} orientation: 'vertical' <CallSoSScreen>: hue: random() canvas: Color: hsv: self.hue, .5, .7 Rectangle: size: self.size Button: text: 'Home' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.95} size: 150, 50 on_release: root.manager.current = 'home' Button: text: 'Login History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.88} size: 150, 50 on_release: root.manager.current = 'loginhistory' Button: text: 'Alarm History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.81} size: 150, 50 on_release: root.manager.current = 'alarmhistory' Button: text: 'User Management' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.74} size: 150, 50 on_release: root.manager.current = 'usermanagement' Button: text: 'Call SoS' background_color: [1, 2, 1, 2] size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.67} size: 150, 50 Button: text: 'Settings' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.60} size: 150, 50 on_release: root.manager.current = 'settings' Button: text: 'Call RealTec' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.53} size: 150, 50 on_release: root.manager.current = 'callrealtec' Button: text: 'Main Menu' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.46} size: 150, 50 on_release: root.manager.current = 'menu' BoxLayout: size_hint: .5, None height: 250 pos_hint: {'center_x': .5} orientation: 'vertical' <SettingsScreen>: hue: random() canvas: Color: hsv: self.hue, .5, .5 Rectangle: size: self.size Button: text: 'Home' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.95} size: 150, 50 on_release: root.manager.current = 'home' Button: text: 'Login History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.88} size: 150, 50 on_release: root.manager.current = 'loginhistory' Button: text: 'Alarm History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.81} size: 150, 50 on_release: root.manager.current = 'alarmhistory' Button: text: 'User Management' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.74} size: 150, 50 on_release: root.manager.current = 'usermanagement' Button: text: 'Call SoS' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.67} size: 150, 50 on_release: root.manager.current = 'callsos' Button: text: 'Settings' background_color: [1, 2, 1, 2] size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.60} size: 150, 50 Button: text: 'Call RealTec' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.53} size: 150, 50 on_release: root.manager.current = 'callrealtec' Button: text: 'Main Menu' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.46} size: 150, 50 on_release: root.manager.current = 'menu' BoxLayout: size_hint: .5, None height: 250 pos_hint: {'center_x': .5} orientation: 'vertical' <CallRealTecScreen>: hue: random() canvas: Color: hsv: self.hue, .5, .4 Rectangle: size: self.size Button: text: 'Home' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.95} size: 150, 50 on_release: root.manager.current = 'home' Button: text: 'Login History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.88} size: 150, 50 on_release: root.manager.current = 'loginhistory' Button: text: 'Alarm History' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.81} size: 150, 50 on_release: root.manager.current = 'alarmhistory' Button: text: 'User Management' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.74} size: 150, 50 on_release: root.manager.current = 'usermanagement' Button: text: 'Call SoS' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.67} size: 150, 50 on_release: root.manager.current = 'callsos' Button: text: 'Settings' size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.60} size: 150, 50 on_release: root.manager.current = 'settings' Button: text: 'Call RealTec' background_color: [1, 2, 1, 2] size_hint: None, None pos_hint: {'center_x':.05, 'center_y':.53} size: 150, 50 Button: text: 'Main Menu' size_hint: None, None pos_hint: {'center_x':0.05, 'center_y':0.46} size: 150, 50 on_release: root.manager.current = 'menu' BoxLayout: size_hint: .5, None height: 250 pos_hint: {'center_x': .5} orientation: 'vertical' """) # Declare both screens class MenuScreen(Screen): hue = NumericProperty(0) pass class HomeScreen(Screen): hue = NumericProperty(0) pass class LoginHistoryScreen(Screen): hue = NumericProperty(0) pass class AlarmHistoryScreen(Screen): hue = NumericProperty(0) pass class UserManagementScreen(Screen): hue = NumericProperty(0) pass class CallSosScreen(Screen): hue = NumericProperty(0) pass class SettingsScreen(Screen): hue = NumericProperty(0) pass class CallRealTecScreen(Screen): hue = NumericProperty(0) pass sm = ScreenManager() sm.add_widget(MenuScreen(name='menu')) sm.add_widget(HomeScreen(name='home')) sm.add_widget(LoginHistoryScreen(name='loginhistory')) sm.add_widget(AlarmHistoryScreen(name='alarmhistory')) sm.add_widget(UserManagementScreen(name='usermanagement')) sm.add_widget(CallSosScreen(name='callsos')) sm.add_widget(CallRealTecScreen(name='callrealtec')) sm.add_widget(SettingsScreen(name='settings')) class TestApp(App): def build(self): return sm if __name__ == '__main__': TestApp().run()

1条回答

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1楼 · 发布于 2024-06-26 17:03:52

我没看完你的密码。您应该提供一个Minimal, Complete, and Verifiable example。也就是说，这里有一个简短的例子，你可以以此为基础。该示例的主要优点是，您不必添加ScreenManager作为顶层小部件。在

from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.gridlayout import GridLayout
from kivy.uix.button import Button
from kivy.uix.label import Label


class Manager(ScreenManager):

    def __init__(self, *args, **kwargs):
        super(Manager, self).__init__(*args, **kwargs)

        for i in range(4):
            txt = 'Screen {}'.format(i)
            lbl = Label(text=txt)
            screen = Screen(name=txt)
            screen.add_widget(lbl)
            self.add_widget(screen)


class Nav(GridLayout):

    def __init__(self, sm=None, *args, **kwargs):
        super(Nav, self).__init__(*args, **kwargs)
        self.sm = sm
        self.rows = 4
        self.size_hint = (.2, 1)
        for i in range(4):
            self.add_widget(Button(text="Screen {}".format(i), on_release=self.change))

    def change(self, btn):
        self.sm.current = btn.text


class Root(BoxLayout):

    def __init__(self, *args, **kwargs):
        super(Root, self).__init__(*args, **kwargs)
        self.orientation = "horizontal"
        sm = Manager()

        self.add_widget(Nav(sm=sm))
        self.add_widget(sm)


class TestApp(App):

    def build(App):
        return Root()


if __name__ == '__main__':
    TestApp().run()

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