我试图将KivyMD BottomNavigation放在下面的.kv
文件中的4个屏幕上,我以前尝试过,但是我在KivyMD工具栏上遇到了问题(因为我需要为不同的屏幕使用不同的工具栏),并且我无法返回到具有BottomNavigation的屏幕上(尽管我认为有问题,我使用了app.change_screen()
='bottomnavigationitem name'
这就是我对普通屏幕所做的)
我目前在4个屏幕上有Kivymd BottomAppbar,但由于BottomAppbar透明度问题,我想将BottomAppbar更改为BottonAvigation
问题;(1) 如何将工具栏放置在MDBottomNavigation中,因为我希望不同的屏幕使用不同的工具栏(2)如何使用MDBottomNavigation切换回屏幕(因为我以前尝试过这样做,它只返回一个空白的白色屏幕) 谢谢
这是我的.py文件
from kivymd.app import MDApp
from kivy.uix.screenmanager import Screen, ScreenManager, NoTransition
from kivy.core.window import Window
Window.size = (300, 530)
class IntroScreen(Screen):
pass
class WaysScreen(Screen):
pass
class To_DoScreen(Screen):
pass
class SuccessScreen(Screen):
pass
class GoalsScreen(Screen):
pass
class BellaBaron(Screen):
pass
class SearchScreen(Screen):
pass
class MenuScreen(Screen):
pass
class CalendarScreen(Screen):
pass
class ExtraScreen(Screen):
pass
class ArchiveScreen(Screen):
pass
class Contact_InfoScreen(Screen):
pass
class TenThousandApp(MDApp):
def build(self):
self.theme_cls.primary_palette = 'Green'
self.theme_cls.primary_hue = '200'
self.sm = ScreenManager(transition=NoTransition())
self.sm.add_widget(IntroScreen(name="intro_screen"))
self.sm.add_widget(WaysScreen(name="ways_screen"))
self.sm.add_widget(To_DoScreen(name="to_do_screen"))
self.sm.add_widget(SuccessScreen(name="success_screen"))
self.sm.add_widget(GoalsScreen(name="goals_screen"))
self.sm.add_widget(BellaBaron(name="bella_baron"))
self.sm.add_widget(SearchScreen(name="search_screen"))
self.sm.add_widget(MenuScreen(name="menu_screen"))
self.sm.add_widget(CalendarScreen(name="calendar_screen"))
self.sm.add_widget(ExtraScreen(name="extra_screen"))
self.sm.add_widget(ArchiveScreen(name="archive_screen"))
self.sm.add_widget(Contact_InfoScreen(name="contact_info_screen"))
return self.sm
def change_screen(self, screen):
self.sm.current = screen
TenThousandApp().run()
这是我的
# The BottomAppBar in the Intro, Success, Search and Menu Screens..
# is what I want to change to BottomNavigation
<IntroScreen>
name: "intro_screen"
MDBoxLayout:
orientation: 'vertical'
MDToolbar:
id: intro_screen_toolbar
title: '[font=Gabriola][size=40][color=#FD0101]First[/color][/size][size=28]project[/size][/font]'
right_action_items: [["calendar-month", lambda x: app.change_screen('to_do_screen')]] #links to to-do listss screen
MDCard:
orientation: 'vertical'
padding: 16
size_hint: None, None
size: "280dp", "360dp"
pos_hint: {"center_x": .5, "center_y": .6}
height: root.height - intro_screen_toolbar.height - dp(90)
y: root.height - intro_screen_toolbar.height - dp(50)
elevation: "8dp"
orientation: 'vertical'
radius: 15
ScrollView:
MDLabel:
markup: True
size_hint_y: None
size: self.texture_size
text:
"""[b][i]“Your time is limited, so don’t waste it living someone else’s life. Don’t be trapped by dogma – which is living with the results of other people’s thinking. Don’t let the noise of other’s opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become. Everything else is secondary.”[/i][/b]
– Steve Jobs
"""
MDBottomAppBar:
MDToolbar:
icon: 'book-lock-open' #links to 'ways'
on_action_button: app.change_screen('ways_screen')
type: "bottom"
mode: "center"
elevation: "8dp"
left_action_items: [["home", lambda x: x], ["account-group", lambda x: app.change_screen("success_screen")]]
right_action_items: [["magnify", lambda x: app.change_screen("search_screen")], ["menu", lambda x: app.change_screen("menu_screen")]]
<MyTile@SmartTileWithLabel>
size_hint_y: None
height: "240dp"
<SuccessScreen>
name: "success_screen"
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: success_screen_toolbar
title: "Success Stories"
right_action_items: [["progress-clock", lambda x: app.change_screen('goals_screen')]]
ScrollView:
MDGridLayout:
cols: 1
adaptive_height: True
padding: dp(4), dp(4)
spacing: dp(4)
MyTile:
source: "C:/Users/HP USER/Downloads/bella_baron.jpg"
text: "[size=26]Cat 1[/size]\\n[size=14]cat-1.jpg[/size]"
on_release:
app.root.current = 'bella_baron'
MyTile:
source: "C:/Users/HP USER/Downloads/bella_baron.jpg"
text: "[size=26]Cat 2[/size]\\n[size=14]cat-2.jpg[/size]"
tile_text_color: app.theme_cls.accent_color
MyTile:
source: "C:/Users/HP USER/Downloads/bella_baron.jpg"
text: "[size=26][color=#ffffff]Cat 3[/color][/size]\\n[size=14]cat-3.jpg[/size]"
tile_text_color: app.theme_cls.accent_color
MDBottomAppBar:
MDToolbar:
icon: 'magnify'
on_action_button: app.change_screen('search_screen')
type: "bottom"
mode: "center"
elevation: "8dp"
left_action_items: [["home", lambda x: app.change_screen("intro_screen")], ["account-group", lambda x: x]]
right_action_items: [["magnify", lambda x: app.change_screen("search_screen")], ["menu", lambda x: app.change_screen("menu_screen")]]
<SearchScreen>
name: "search_screen"
FloatLayout:
MDBottomAppBar:
MDToolbar:
icon: 'window-close'
type: "bottom"
mode: "center"
elevation: "8dp"
left_action_items: [["home", lambda x: app.change_screen("intro_screen")], ["account-group", lambda x: app.change_screen("success_screen")]]
right_action_items: [["magnify", lambda x: x], ["menu", lambda x: app.change_screen("menu_screen")]]
MDTextField:
mode: 'fill'
hint_text: "Search"
pos_hint: {"center_x": .5,"center_y": .9}
size_hint_x: None
width: 280
<MenuScreen>
name: "menu_screen"
BoxLayout:
orientation: "vertical"
md_bg_color: (240/255, 240/255, 240/255, 1)
MDToolbar:
id: menu_screen_toolbar
title: "Tools"
elevation: "8dp"
MDCard:
orientation: 'vertical'
padding: 16
size_hint: None, None
size: "280dp", "360dp"
pos_hint: {"center_x": .5, "center_y": .6}
height: root.height - menu_screen_toolbar.height - dp(90)
y: root.height - menu_screen_toolbar.height - dp(50)
elevation: 8
orientation: 'vertical'
radius: 15
ScrollView:
MDList:
OneLineIconListItem:
text: "Calendar"
on_release:
app.root.current = "calendar_screen"
IconLeftWidget:
icon: "calendar-month"
OneLineIconListItem:
text: "Extra"
on_release:
app.root.current = "extra_screen"
IconLeftWidget:
icon: "notebook-multiple"
OneLineIconListItem:
text: "Archive"
on_release:
app.root.current = "archive_screen"
IconLeftWidget:
icon: "archive"
OneLineIconListItem:
text: "contact Us"
on_release:
app.root.current = "contact_info_screen"
IconLeftWidget:
icon: "email-mark-as-unread"
MDBottomAppBar:
MDToolbar:
icon: 'reload'
type: "bottom"
mode: "center"
elevation: "8dp"
left_action_items: [["home", lambda x: app.change_screen("intro_screen")], ["account-group", lambda x: app.change_screen("success_screen")]]
right_action_items: [["magnify", lambda x: app.change_screen("search_screen")], ["menu", lambda x: x]]
<WaysScreen>
name: "ways_screen"
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: ways_screen_toolbar
title: "How-tos"
left_action_items: [['keyboard-backspace', lambda x: app.change_screen('intro_screen')]]
elevation: "8dp"
ScrollView:
MDGridLayout:
cols: 1
adaptive_height: True
spacing: 10
padding: 10
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
Image:
source: "C:/Users/HP USER/Downloads/bella_baron.jpg"
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello dear'
ScrollView:
MDLabel:
size_hint_y: None
size: self.texture_size
text:
"""Hello, World."""
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello boss'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello goodness'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello hi'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello yes?'
<To_DoScreen>
name: "to_do_screen"
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: to_do_screen_toolbar
title: 'To-Do-List'
right_action_items: [['plus', lambda x: x]]
left_action_items: [['keyboard-backspace', lambda x: app.change_screen('intro_screen')]]
MDCard:
orientation: 'vertical'
padding: 16
elevation: 8
radius: 15
size_hint: None, None
size: '280', '360'
pos_hint: {"center_x": .5, "center_y": .6}
height: root.height - to_do_screen_toolbar.height + dp(10)
y: root.height - to_do_screen_toolbar.height - dp(20)
<GoalsScreen>
name: 'goals_screen'
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: goals_screen_toolbar
title: 'Goals'
left_action_items: [['keyboard-backspace', lambda x: app.change_screen('success_screen')]]
MDCard:
orientation: 'vertical'
padding: 16
size_hint: None, None
size: "280dp", "360dp"
pos_hint: {"center_x": .5, "center_y": .6}
height: root.height - goals_screen_toolbar.height + dp(10)
y: root.height - goals_screen_toolbar.height - dp(20)
elevation: "8dp"
orientation: 'vertical'
radius: 15
<BellaBaron>
name: 'bella_baron'
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: bella_baron_toolbar
title: "Bella Baron"
left_action_items: [["keyboard-backspace", lambda x: app.change_screen('success_screen')]]
right_action_items: [["progress-check", lambda x: app.change_screen('goals_screen')]]
ScrollView:
MDGridLayout:
cols: 1
adaptive_height: True
spacing: 10
padding: 10
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
Image:
source: "C:/Users/HP USER/Downloads/bella_baron.jpg"
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello dear'
ScrollView:
MDLabel:
size_hint_y: None
size: self.texture_size
text:
"""This screens contains a MDcard which where the image is placed, and a MDLabel and neccessary widgets used to tell the success story, under the MDCard."""
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello boss'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello goodness'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello hi'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello yes?'
<CalendarScreen>
name: "calendar_screen"
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: calendar_screen_toolbar
title: 'Calendar'
left_action_items: [['keyboard-backspace', lambda x: app.change_screen('menu_screen')]]
right_action_items: [['calendar', lambda x: x]] # on press returns today's date
MDCard:
orientation: 'vertical'
padding: 16
elevation: 8
radius: 15
size_hint: None, None
size: '280', '360'
pos_hint: {"center_x": .5, "center_y": .6}
height: root.height - calendar_screen_toolbar.height + dp(10)
y: root.height - calendar_screen_toolbar.height - dp(20)
<ExtraScreen>
name: "extra_screen"
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: extra_screen_toolbar
title: 'Extra'
left_action_items: [['keyboard-backspace', lambda x: app.change_screen('menu_screen')]]
ScrollView:
MDGridLayout:
cols: 1
adaptive_height: True
spacing: 10
padding: 10
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
Image:
source: "C:/Users/HP USER/Downloads/bella_baron.jpg"
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello dear'
ScrollView:
MDLabel:
size_hint_y: None
size: self.texture_size
text:
"""This screens contains a MDcard which where the image is placed, and a MDLabel and neccessary widgets used to tell the success story, under the MDCard."""
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello boss'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello goodness'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello hi'
MDCard:
size_hint: None, None
size: "280dp", "130dp"
radius: 15
caption: 'Hello yes?'
<ArchiveScreen>
name: "archive_screen"
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: archive_screen_toolbar
title: 'Archive'
left_action_items: [['keyboard-backspace', lambda x: app.change_screen('menu_screen')]]
MDCard:
orientation: 'vertical'
padding: 16
elevation: 8
radius: 15
size_hint: None, None
size: '280', '360'
pos_hint: {"center_x": .5, "center_y": .6}
height: root.height - archive_screen_toolbar.height + dp(10)
y: root.height - archive_screen_toolbar.height - dp(20)
<Contact_InfoScreen>
name: "contact_info_screen"
BoxLayout:
orientation: 'vertical'
MDToolbar:
id: contact_info_screen_toolbar
title: 'Contact Info'
left_action_items: [['keyboard-backspace', lambda x: app.change_screen('menu_screen')]]
MDCard:
orientation: 'vertical'
padding: 16
elevation: 8
radius: 15
size_hint: None, None
size: '280', '360'
pos_hint: {"center_x": .5, "center_y": .6}
height: root.height - contact_info_screen_toolbar.height + dp(10)
y: root.height - contact_info_screen_toolbar.height - dp(20)
ScrollView:
MDLabel:
size_hint_y: None
size: self.texture_size
text:
"""feel free to reach us @"""
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