如何在 Kivy 中制作下拉列表
[英]How to make dropdown list in Kivy
问题描述
我正在尝试在 KivyMD 中创建一个下拉列表。 这方面的文档并没有特别有用 - 我添加了一个我正在尝试创建的模型
任何帮助将不胜感激。 我试图看教程，但我被卡住了。 ..................................................... .....................................
from kivy import Config
from kivy.app import App
from kivy.lang import Builder
from kivy.properties import StringProperty
from kivy.uix.image import Image
from kivy.uix.label import Label
from kivy.uix.popup import Popup
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
from kivy.uix.textinput import TextInput
from kivymd.app import MDApp
from kivy.uix.boxlayout import BoxLayout
from kivymd.theming import ThemableBehavior
from kivymd.uix.navigationdrawer import MDNavigationLayout, MDNavigationDrawer
from kivymd.uix.list import MDList, OneLineAvatarListItem, ILeftBody
from kivy.properties import ObjectProperty
from kivymd.uix.menu import MDDropdownMenu
Config.set('input', 'mouse', 'mouse,disable_multitouch')
class DrawerList(ThemableBehavior, MDList, Screen):
pass
class NavLayout(MDNavigationLayout):
pass
class Login(Screen):
nav_drawer = ObjectProperty()
class Nav(Screen):
Login = ObjectProperty()
ScreenManager = ObjectProperty
class Homepage(Screen):
Login = ObjectProperty()
nav_drawer = ObjectProperty()
class Homepage(Screen):
Login = ObjectProperty()
nav_drawer = ObjectProperty()
def submit(self):
Popup(title='Submitted', content=Label(text='Case has been submitted and will be reviewed'), size_hint=(0.5, 0.5)).open()
sm = self.ids.screen_manager
scr = sm.get_screen('Create Case')
for child in scr.children:
if isinstance(child, TextInput):
child.text = ''
def dropdown(self):
self.menu_list = [
{
"viewclass": "OneLineListItem",
"text": "Example 1",
"on_release": lambda x="Example 1": self.test1
},
{
"viewclass": "OneLineListItem",
"text": "Example 2",
"on_release": lambda x="Example 1": self.test2
}
]
self.menu = MDDropdownMenu(
caller = self.ids.dropmenu,
items = self.menu_list,
width_mult = 4
)
self.dropmenu.open()
def test1(self):
print("test1")
def test1(self):
print("test2")
class AddNewCustomer(Screen):
nav_drawer = ObjectProperty()
class AddNewStaff(Screen):
pass
class ScreenManager(ScreenManager):
Login = ObjectProperty()
class ContentNavigationDrawer(BoxLayout):
pass
class MainApp(MDApp):
def build(self):
# Window.maximize()
# self.theme_cls.theme_style = "Light"
# self.theme_cls.primary_hue = "900"
login = Builder.load_file("login.kv")
return login
if __name__ == "__main__":
MainApp().run()
ScreenManager:
Login:
Homepage:
AddNewCustomer:
Nav:
DrawerList:
<Login>:
name: "login"
MDCard:
size_hint: None, None
size: 700, 800
pos_hint: {"center_x": 0.5, "center_y": 0.5}
elevation: 10
padding: 25
spacing: 25
orientation: 'vertical'
Image:
source: 'images/asteria.png'
size: 100, 200
MDLabel:
id: login
font_size: 40
halign: 'center'
size_hint_y: None
height: self.texture_size[1]
padding_y: 15
MDTextFieldRound:
id: user
hint_text: "username"
icon_right: "account"
size_hint_x: None
width: 200
font_size: 18
pos_hint: {"center_x": 0.5}
MDTextFieldRound:
id: password
hint_text: "password"
icon_right: "eye-off"
size_hint_x: None
width: 200
font_size: 18
pos_hint: {"center_x": 0.5}
password: True
MDRoundFlatButton:
text: "LOGIN"
font_size: 12
pos_hint: {"center_x": 0.5}
on_release:
root.manager.current = "homepage"
root.manager.transition.direction = "left"
MDRoundFlatButton:
text: "CLEAR"
font_size: 12
pos_hint: {"center_x": 0.5}
on_press: app.clear()
Widget:
size_hint_y: None
height: 50
<Nav>:
ScrollView:
MDList:
OneLineListItem:
text: "Add New Customer"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "addNewCustomer"
root.screen_manager.transition.direction = "right"
OneLineListItem:
text: "Add New Staff"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "addNewStaff"
OneLineListItem:
text: "Case List"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "caseList"
OneLineListItem:
text: "Create Case"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.transition.direction = "left"
root.screen_manager.current = "Create Case"
OneLineListItem:
text: "Log Out"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.manager.current = "login"
root.manager.transition.direction = "right"
<Homepage>:
name: "homepage"
Screen:
MDNavigationLayout:
ScreenManager:
id: screen_manager
Screen:
name: "Homepage"
MDLabel:
text: "Welcome Home"
halign: "center"
Screen:
name: "addNewCustomer"
MDLabel:
text: "Add New customer"
halign: "center"
Screen:
name: "addNewStaff"
MDLabel:
text: "Add New Staff"
halign: "center"
Screen:
name: "caseList"
MDLabel:
text: "Case List"
halign: "center"
Screen:
name: "casePool"
MDLabel:
text: "Case Pool"
halign: "center"
Screen:
name: "Create Case"
MDLabel:
text: "Case Title"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.875, "center_x": 0.115}
MDTextFieldRound:
id: CaseTitle
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.863, "center_x": 0.155}
MDLabel:
text: "Customer"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.791, "center_x": 0.115}
MDTextFieldRound:
id: Customer
hint_text: "Info Here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 275
font_size: 14
pos_hint: {"top": 0.779, "center_x": 0.155}
MDLabel:
text: "Customer Forename"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.707, "center_x": 0.115}
MDTextFieldRound:
id: Customer Forename
hint_text: "Info here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 137.5
font_size: 14
pos_hint: {"top": 0.687, "center_x": 0.121}
MDLabel:
text: "Customer Surname"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.707, "center_x": 0.210}
MDTextFieldRound:
id: Customer Forename
hint_text: "Info Here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 137.5
font_size: 14
pos_hint: {"top": 0.687, "center_x": 0.210}
MDLabel:
text: "Alternative email"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.620, "center_x": 0.115}
MDTextFieldRound:
id: Alternative Email
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.600, "center_x": 0.155}
MDLabel:
text: "Alternative Phone"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.533, "center_x": 0.115}
MDTextFieldRound:
id: Alternative phone
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.513, "center_x": 0.155}
MDLabel:
text: "Case Source"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.449, "center_x": 0.115}
MDTextFieldRound:
id: Case Source
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.437, "center_x": 0.155}
MDLabel:
text: "Case Priority"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.365, "center_x": 0.115}
MDTextFieldRound:
id: Case Priority
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.353, "center_x": 0.155}
MDLabel:
text: "Case Category"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.281, "center_x": 0.115}
MDLabel:
text: "Case Description"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.883, "center_x": 0.360}
MDTextFieldRound:
id: CaseDescription
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.863, "center_x": 0.400}
MDLabel:
text: "Possible Cases"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.799, "center_x": 0.360}
MDTextFieldRound:
id: PossibleCases
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.780, "center_x": 0.400}
MDLabel:
text: "Knowledge Helper"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.715, "center_x": 0.360}
MDTextFieldRound:
id: KnowledgeHelper
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.697, "center_x": 0.400}
MDRoundFlatButton:
text: "Submit"
font_size: 12
pos_hint: {"center_y": 0.400,"center_x": 0.5}
on_release: root.submit()
BoxLayout:
orientation: 'vertical'
MDToolbar:
title: 'Navigation'
left_action_items: [['menu', lambda x: nav_drawer.set_state('open')]]
right_action_items: [["images/asteria.png", lambda x: None]]
elevation:5
Widget:
MDNavigationDrawer:
id: nav_drawer
Nav:
screen_manager: screen_manager
nav_drawer: nav_drawer
manager: root.manager
1 个解决方案
解决方案1
1 2022-06-25 23:55:48
我认为您正在寻找 KivyMD Menu小部件。 这是文档中的一个示例：
from kivy.lang import Builder
from kivymd.app import MDApp
from kivymd.uix.menu import MDDropdownMenu
KV = '''
MDScreen:
MDRaisedButton:
id: button
text: "PRESS ME"
pos_hint: {"center_x": .5, "center_y": .5}
on_release: app.menu.open()
'''
class Test(MDApp):
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.screen = Builder.load_string(KV)
menu_items = [
{
"text": f"Item {i}",
"viewclass": "OneLineListItem",
"on_release": lambda x=f"Item {i}": self.menu_callback(x),
} for i in range(5)
]
self.menu = MDDropdownMenu(
caller=self.screen.ids.button,
items=menu_items,
width_mult=4,
)
def menu_callback(self, text_item):
print(text_item)
def build(self):
return self.screen
Test().run()
如何使用下拉列表启动 kivy 应用程序，该应用程序选择我将处理的数据，具体取决于从下拉列表中选择的选项？
[英]How to start a kivy app with a dropdown list that selects the data i will be working on, depending the selected option from te dropdown?
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