【发布时间】：2021-01-05 09:21:35
【问题描述】：
我尝试将应用程序作为问题，我不知道如何解决此错误。
AttributeError: 'CustomItem' 对象没有属性 'delete_item'
我知道这是什么意思，CustomItem 是另一个类，所以它没有那个 def，但是当我将该 def 复制到 CustomItem 类中时，它没有对象面板。那么是否可以连接另一个类？
main.py
import kivy
kivy.require('1.11.1')
from helpers import screen_helper
from kivy.uix.screenmanager import Screen, ScreenManager
from kivymd.app import MDApp
from kivymd.uix.button import MDFillRoundFlatButton,MDFloatingActionButton, MDRectangleFlatButton, MDFloatingActionButtonSpeedDial, MDFlatButton, MDRoundFlatButton
from kivy.uix.image import Image
from kivy.lang import Builder
from kivy.uix.floatlayout import FloatLayout
from kivymd.uix.boxlayout import BoxLayout, MDBoxLayout
from kivymd.uix.toolbar import MDToolbar
from kivy.core.window import Window
from kivymd.uix.dialog import MDDialog
from kivymd.uix.taptargetview import MDTapTargetView
from kivymd.uix.menu import MDDropdownMenu, RightContent
from kivy.uix.dropdown import DropDown
from kivymd.uix.list import OneLineAvatarIconListItem
from kivymd.uix.label import MDLabel
from kivymd.uix.textfield import MDTextField
from kivymd.uix.snackbar import Snackbar
from kivymd.uix.card import MDSeparator
from kivymd.uix.list import MDList
from kivy.uix.scrollview import ScrollView
from kivymd.uix.floatlayout import MDFloatLayout
from kivy.properties import ObjectProperty
from kivy.core.window import Window
from kivymd.uix.gridlayout import GridLayout
from kivymd.uix.expansionpanel import MDExpansionPanel,MDExpansionPanelOneLine
from kivymd.uix.list import StringProperty,ThreeLineAvatarIconListItem
from kivy.properties import BooleanProperty
from kivymd.theming import ThemableBehavior
from kivymd.uix.bottomsheet import MDListBottomSheet
from kivy.factory import Factory
from kivymd.toast import toast
from kivy.animation import Animation
class ItemConfirm(OneLineAvatarIconListItem):
divider = None
def set_icon(self, choice):
choice.active = True
check_list = choice.get_widgets(choice.group)
for check in check_list:
if check != choice:
check.active = False
class HomeScreen(Screen):
choose_dialog= None
choice = None
help_dialog= None
def show_ChooseDialog(self):
if not self.choose_dialog:
self.choose_dialog = MDDialog(title="Test zameraný pre:", type="confirmation",
size_hint=[0.9, 0.5], auto_dismiss=False,
items=[ItemConfirm(text="osobné zlepšenie",on_release= self.next_page_me,
on_press= self.close_choose_dialog,),
ItemConfirm(text="prácu v tíme", on_release= self.next_page_team,
on_press= self.close_choose_dialog, ),
ItemConfirm(text="osobné vzťahy",on_release= self.next_page_we,
on_press= self.close_choose_dialog,)],)
self.choose_dialog.open()
def close_choose_dialog(self, obj):
self.choose_dialog.dismiss()
print(self.choose_dialog.items)
def next_page_me (self,obj):
self.manager.current = "motivationme"
def next_page_team (self,obj):
self.manager.current = "motivationteam"
def next_page_we (self,obj):
self.manager.current = "motivationwe"
def show_HelpDialog(self):
ok_button = MDRectangleFlatButton (text= "Rozummiem",on_release=self.close_help_dialog)
self.help_dialog = MDDialog(title="O čo v teste ide?", text="obkec",
size_hint=[0.8, 0.5], auto_dismiss=False,
buttons=[ok_button])
self.help_dialog.open()
def close_help_dialog(self,obj):
self.help_dialog.dismiss()
def main_navigate(self, button):
if button.icon == "home":
self.manager.current = "home"
elif button.icon == "lightning-bolt":
self.manager.current = "goals"
elif button.icon == "notebook":
self.manager.current = "history"
class MotivationScreenMe(Screen):
def main_navigate(self, button):
if button.icon == "home":
self.manager.current = "home"
elif button.icon == "lightning-bolt":
self.manager.current = "goals"
elif button.icon == "notebook":
self.manager.current = "history"
def test_name(self):
subor = open("package.txt", "w")
subor.write(self.ids.nazov_testu.text)
class MotivationScreenTeam(Screen):
nazov = ObjectProperty(None)
nazov_testu = ObjectProperty(None)
created= ObjectProperty(None)
def main_navigate(self, button):
if button.icon == "home":
self.manager.current = "home"
elif button.icon == "lightning-bolt":
self.manager.current = "goals"
elif button.icon == "notebook":
self.manager.current = "history"
def test_name(self):
subor = open("package.txt", "w")
subor.write(self.ids.nazov_testu.text)
class MotivationScreenWe(Screen):
nazov = ObjectProperty(None)
nazov_testu = ObjectProperty(None)
def main_navigate(self, button):
if button.icon == "home":
self.manager.current = "home"
elif button.icon == "lightning-bolt":
self.manager.current = "goals"
elif button.icon == "notebook":
self.manager.current = "history"
def test_name(self):
subor = open("package.txt", "w")
subor.write(self.ids.nazov_testu.text)
class TestConfirm(OneLineAvatarIconListItem):
divider = None
def set_icon(self, choice):
choice.active = True
check_list = choice.get_widgets(choice.group)
for check in check_list:
if check != choice:
check.active = False
class TestScreenV(Screen):
snackbar = None
p = 0
r = 0
def show_example_snackbar(self):
if not self.snackbar:
self.snackbar = Snackbar(text="Pokračovať na druhý test?",
snackbar_x="10dp",
snackbar_y="10dp",
bg_color= (0.96,0.79,0.09, 1),)
self.snackbar.size_hint_x = ( Window.width -
(self.snackbar.snackbar_x * 2)) / Window.width
self.snackbar.buttons = [MDFlatButton(text="Áno",text_color=(1, 1, 1, 1),
on_release=self.evaluate,
on_press= self.snackbar.dismiss),]
self.snackbar.open()
def evaluate (self,obj):
self.manager.current= "testm"
self.manager.transition.direction = 'left'
def plus(self):
self.p = self.p +4.16
self.ids.progress.value = self.p
class TestScreenM(Screen):
snackbar = None
p = 0
r = 0
def show_example_snackbar(self):
if not self.snackbar:
self.snackbar = Snackbar(text="Naozaj ukončiť ?",
snackbar_x="10dp",
snackbar_y="10dp",
bg_color= (0.96,0.79,0.09, 1),)
self.snackbar.size_hint_x = ( Window.width -
(self.snackbar.snackbar_x * 2)) / Window.width
self.snackbar.buttons = [MDFlatButton(text="Uložiť",text_color=(1, 1, 1, 1),
on_release=self.evaluate,
on_press= self.snackbar.dismiss),]
self.snackbar.open()
def evaluate (self,obj):
self.manager.current= "history"
self.manager.transition.direction = 'left'
def plus(self):
self.p = self.p +4.16
self.ids.progress.value = self.p
class MeContent(MDBoxLayout):
pass
class TeamContent(MDBoxLayout):
pass
class WeContent(MDBoxLayout):
pass
class GoalsScreen(Screen):
panel_is_open = False
def on_enter(self):
self.panel0 = MDExpansionPanel(icon="flash",content=WeContent(),
panel_cls=MDExpansionPanelOneLine(text="Definuj si ciele"), )
self.ids.cards.add_widget(self.panel0)
self.panel0.bind(on_open=self.panel_open, on_close=self.panel_close)
self.panel1 = MDExpansionPanel(icon="human-greeting",content=MeContent(),
panel_cls=MDExpansionPanelOneLine(text="Ja"),)
self.ids.cards.add_widget(self.panel1)
self.panel1.bind(on_open=self.panel_open, on_close=self.panel_close)
self.panel2 = MDExpansionPanel(icon="human-capacity-increase", content=TeamContent(),
panel_cls=MDExpansionPanelOneLine(text="Tím"), )
self.ids.cards.add_widget(self.panel2)
self.panel2.bind(on_open=self.panel_open, on_close=self.panel_close)
self.panel3 = MDExpansionPanel(icon="human-male-female", content=WeContent(),
panel_cls=MDExpansionPanelOneLine(text="Vzťah"), )
self.ids.cards.add_widget(self.panel3)
self.panel3.bind(on_open=self.panel_open, on_close=self.panel_close)
def panel_open(self, *args):
self.panel_is_open = True
def panel_close(self, *args):
self.panel_is_open = False
def main_navigate(self, button):
if button.icon == "home":
self.manager.current = "home"
elif button.icon == "lightning-bolt":
self.manager.current = "goals"
elif button.icon == "notebook":
self.manager.current = "history"
class Content(MDBoxLayout):
pass
class CustomItem(ThreeLineAvatarIconListItem):
def sh_delete_item(self):
yes_button = MDFillRoundFlatButton (text="Zmazať", on_release=self.close_del_dialog
,on_press= self.delete_item)
no_button = MDRoundFlatButton (text= "Zrušiť", on_release= self.close_del_dialog)
self.del_dialog = MDDialog(title="Naozaj zmazať test?",
size_hint=[0.8, 0.5], auto_dismiss=False,
buttons=[ no_button,yes_button])
self.del_dialog.open()
def close_del_dialog(self, obj):
self.del_dialog.dismiss()
def delete_item(self, item):
self.parent.get_screen('history')
self.panel.content.remove_widget(item)
self.panel.height -= item.height
for index, val in enumerate(self.panel.content.children[::-1]):
val.secondary_text = str(index + 1)
icon = StringProperty('')
class HistoryScreen(Screen):
panel_is_open = False
def on_enter(self):
self.ids.panel_container.clear_widgets() # to avoid re-adding panel each time
self.panel= MDExpansionPanel(icon="all.png", panel_cls=MDExpansionPanelOneLine(
text="Moje testy",),
content=Content())
self.ids.panel_container.add_widget(self.panel)
self.panel.bind(on_open=self.panel_open, on_close=self.panel_close)
def panel_open(self, *args):
self.panel_is_open = True
def panel_close(self, *args):
self.panel_is_open = False
def delete_item(self, item):
self.panel.content.remove_widget(item)
self.panel.height -= item.height
for index, val in enumerate(self.panel.content.children[::-1]):
val.secondary_text = str(index + 1)
def add_into_panel(self, Názov, interval):
item = CustomItem(text=f"{len(self.panel.content.children) + 1} Názov",
secondary_text="ukazovatel",tertiary_text="datoum" ,icon="book-outline")
self.panel.content.add_widget(item)
if self.panel_is_open and len(self.panel.content.children) > 1:
self.panel.height += item.height
elif self.panel_is_open and len(self.panel.content.children) == 1:
self.panel.height -= (self.panel.height - item.height) - self.panel.panel_cls.height
def callback_for_menu_items(self, *args):
toast(args[0])
def show_bottom_sheet(self,):
bottom_sheet_menu = MDListBottomSheet(
bg_color=[1, 1, 1, 1],
radius_from="top",)
for i in range(1, 22):
bottom_sheet_menu.add_item(
f"d {i}",
lambda x, y=i: self.callback_for_menu_items(
f"d {y}"
),
)
bottom_sheet_menu.open()
def main_navigate(self, button):
if button.icon == "home":
self.manager.current = "home"
elif button.icon == "lightning-bolt":
self.manager.current = "goals"
elif button.icon == "notebook":
self.manager.current = "history"
class MainApp(MDApp):
def build(self):
self.theme_cls.primary_palette = "Red"
self.theme_cls.primary_hue = "500"
self.theme_cls.theme_style = "Light"
#db= DataBase("package.txt")
screen = Builder.load_string(screen_helper)
return screen
MainApp().run()
.kv
screen_helper = """
ScreenManager:
HomeScreen:
MotivationScreenMe:
MotivationScreenTeam:
MotivationScreenWe:
TestScreenV:
TestScreenM:
GoalsScreen:
HistoryScreen:
<HomeScreen>:
name: "home"
MDLabel:
text: "Spoznaj seba"
font_size: (root.width**2 + root.height**2) / 13**4
halign: "center"
pos_hint: { "center_x" :0.7, "center_y":0.9}
theme_text_color: "Custom"
text_color: 0.96,0.79,0.09, 1
Image:
source: "all.png"
pos_hint: { "center_x" :0.5, "center_y":0.5}
size_hint: (1,1)
MDFloatingActionButton:
icon: "play-circle-outline"
size_hint: None, None
pos_hint: {"center_x" :0.5, "center_y":0.08}
md_bg_color: app.theme_cls.primary_color
on_release: root.show_ChooseDialog()
MDFloatingActionButton:
icon: "help-circle-outline"
md_bg_color: app.theme_cls.primary_color
pos_hint: { "center_x" :0.15, "center_y":0.08}
on_release: root.show_HelpDialog()
MDFloatingActionButtonSpeedDial:
callback: root.main_navigate
data:
{'home': 'Domov',
'lightning-bolt': 'Ciele',
'notebook': 'Moje testy'}
<ItemConfirm>
on_release: root.set_icon(check)
CheckboxLeftWidget:
id: check
group: "check"
<MotivationScreenMe>:
name: "motivationme"
nazov_testu: nazov_testu
MDCard:
orientation: "vertical"
pos_hint:{ "center_x" :0.5, "center_y": 0.6}
size_hint: 0.8, 0.7
padding: "8dp"
MDLabel:
text: "Osobné zlepšenie"
font_size: (root.width**2 + root.height**2) / 13**4
halign: "center"
pos_hint: { "center_x" :0.3, "center_y":0.95}
size_hint: 0.8, 0.1
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
MDSeparator:
height: "1dp"
MDLabel:
text: "bla bla bla bla bla "
font_size: (root.width**2 + root.height**2) / 13**4
halign: "center"
MDTextField:
id: nazov_testu
hint_text:"Zadaj názov testu"
helper_text: "napr. Test 1"
helper_text_mode: "on_focus"
pos_hint: { "center_x" :0.5, "center_y":0.2}
size_hint: 0.8,0.1
MDFloatingActionButton:
icon: "play-circle-outline"
pos_hint: { "center_x" :0.5, "center_y":0.08}
md_bg_color: app.theme_cls.primary_color
on_release:
root.manager.current = "testv"
root.manager.transition.direction = 'up'
on_press: root.test_name()
MDFloatingActionButtonSpeedDial:
callback: root.main_navigate
data:
{'home': 'Domov',
'lightning-bolt': 'Ciele',
'notebook': 'Moje testy'}
<MotivationScreenTeam>:
name: "motivationteam"
nazov_testu: nazov_testu
MDCard:
orientation: "vertical"
pos_hint:{ "center_x" :0.5, "center_y": 0.6}
size_hint: 0.8, 0.7
padding: "8dp"
MDLabel:
text: "Práca v tíme"
halign: "center"
pos_hint: { "center_x" :0.3, "center_y":0.95}
font_size: (root.width**2 + root.height**2) / 13**4
size_hint: 0.8, 0.1
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
MDSeparator:
height: "1dp"
MDLabel:
text: "bla bla bla bla bla "
font_size: (root.width**2 + root.height**2) / 13**4
halign: "center"
MDTextField:
id: nazov_testu
hint_text:"Zadaj názov testu"
helper_text: "napr. Test 1"
helper_text_mode: "on_focus"
pos_hint: { "center_x" :0.5, "center_y":0.2}
size_hint: 0.8,0.1
MDFloatingActionButton:
icon: "play-circle-outline"
pos_hint: { "center_x" :0.5, "center_y":0.08}
md_bg_color: app.theme_cls.primary_color
on_release:
root.manager.current = "testv"
root.manager.transition.direction = 'up'
on_press: root.test_name()
MDFloatingActionButtonSpeedDial:
callback: root.main_navigate
data:
{'home': 'Domov',
'lightning-bolt': 'Ciele',
'notebook': 'Moje testy'}
<MotivationScreenWe>:
name: "motivationwe"
nazov_testu: nazov_testu
MDCard:
orientation: "vertical"
pos_hint:{ "center_x" :0.5, "center_y": 0.6}
size_hint: 0.8, 0.7
padding: "8dp"
MDLabel:
text: "Pre vzťah"
halign: "center"
pos_hint: { "center_x" :0.3, "center_y":0.95}
font_size: (root.width**2 + root.height**2) / 13**4
size_hint: 0.8, 0.1
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
MDSeparator:
height: "1dp"
MDLabel:
text: "bla bla bla bla bla "
font_size: (root.width**2 + root.height**2) / 13**4
halign: "center"
MDTextField:
id: nazov_testu
hint_text:"Zadaj názov testu"
helper_text: "napr. Test 1"
helper_text_mode: "on_focus"
pos_hint: { "center_x" :0.5, "center_y":0.2}
size_hint: 0.8,0.1
MDFloatingActionButton:
icon: "play-circle-outline"
pos_hint: { "center_x" :0.5, "center_y":0.08}
md_bg_color: app.theme_cls.primary_color
on_release:
root.manager.current = "testv"
root.manager.transition.direction = 'up'
on_press: root.test_name()
MDFloatingActionButtonSpeedDial:
callback: root.main_navigate
data:
{'home': 'Domov',
'lightning-bolt': 'Ciele',
'notebook': 'Moje testy'}
<TestConfirm>
on_release: root.set_icon(check)
CheckboxLeftWidget:
id: check
<TestScreenV>:
name: "testv"
MDCard:
orientation: "vertical"
padding: "8dp"
size_hint: 0.9,0.7
pos_hint: {"center_x": .5, "center_y": .6}
OneLineListItem:
text: "Vyber možnosť, ktorá ťa NAJVIAC vystihuje"
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
font_size: (root.width**2 + root.height**2) / 13**4
ScrollView:
do_scroll_x: False
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: dp(6530)
OneLineListItem:
text: "1/24 "
theme_text_color: "Custom"
text_color: app.theme_cls.primary_color
MDFloatingActionButton:
icon: "check-circle-outline"
pos_hint: { "center_x" :0.5, "center_y":0.08}
md_bg_color: app.theme_cls.primary_color
on_release: root.show_example_snackbar()
MDProgressBar:
id: progress
size_hint_x: 0.8
size_hint_y: 0.08
color: app.theme_cls.accent_color
pos_hint: { "center_x" :0.5, "center_y":0.2}
<TestScreenM>:
name: "testm"
MDCard:
orientation: "vertical"
padding: "8dp"
size_hint: 0.9,0.7
pos_hint: {"center_x": .5, "center_y": .6}
OneLineListItem:
text: "Vyber možnosť, ktorá ťa NAJMENEJ vystihuje"
theme_text_color: "Custom"
text_color: 0.19,0.38,0.17,1
font_size: (root.width**2 + root.height**2) / 13**4
ScrollView:
do_scroll_x: False
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: dp(6530)
OneLineListItem:
text: "1/24 "
theme_text_color: "Custom"
text_color: 0.19,0.38,0.17,1
TestConfirm:
text: "prieberčivý"
font_size: (root.width**2 + root.height**2) / 13**4
text_of_the_option: "s"
on_press: root.plus()
MDFloatingActionButton:
icon: "check-circle-outline"
pos_hint: { "center_x" :0.5, "center_y":0.08}
md_bg_color: app.theme_cls.primary_color
on_release: root.show_example_snackbar()
MDProgressBar:
id: progress
size_hint_x: 0.8
size_hint_y: 0.08
color: app.theme_cls.accent_color
pos_hint: { "center_x" :0.5, "center_y":0.2}
<MeContent>:
adaptive_height: True
orientation: 'vertical'
spacing: "12dp"
size_hint_y: None
height: "120dp"
MDLabel:
text: "Ako by si ..?"
theme_text_color: "Custom"
text_color: 0.96,0.79,0.09, 1
MDTextField:
hint_text: "Ciel No.1"
mode: "rectangle"
MDTextField:
hint_text: "Ciel No.2"
mode: "rectangle"
MDTextField:
hint_text: "Ciel No.3"
mode: "rectangle"
<GoalsScreen>:
name: "goals"
ScrollView:
MDList:
id: cards
MDRoundFlatIconButton:
text: "technika SMART"
icon: 'lightbulb-on-outline'
theme_text_color: "Custom"
text_color: app.theme_cls.accent_color
pos_hint: {"center_y": .2}
MDFloatingActionButtonSpeedDial:
callback: root.main_navigate
data:
{'home': 'Domov',
'lightning-bolt': 'Ciele',
'notebook': 'Moje testy'}
<Content>
adaptive_height: True
orientation: 'vertical'
<CustomItem>:
IconLeftWidget:
icon: root.icon
IconRightWidget:
icon: 'delete'
on_press: root.sh_delete_item()
#:import Clock kivy.clock.Clock
#:import partial functools.partial
<HistoryScreen>:
name: "history"
ScrollView:
MDList:
id: panel_container
MDFillRoundFlatButton:
text:"Pridaj test"
pos_hint:{ "center_x" :0.5, "center_y": 0.5}
size_hint: None, None
on_release:Clock.schedule_once(partial(root.add_into_panel, 'text'), .5)
MDFillRoundFlatButton:
pos_hint:{ "center_x" :0.5, "center_y": 0.1}
size_hint: None, None
text: "Typy osobností"
on_press: root.show_bottom_sheet()
MDFloatingActionButtonSpeedDial:
callback: root.main_navigate
data:
{'home': 'Domov',
'lightning-bolt': 'Ciele',
'notebook': 'Moje testy'}
"""
```
【问题讨论】：