Last time I solved the error thanks to you.
However, due to my lack of skills,
I looked up a lot of data but couldn't solve the error.
If I click information Button happen this error message.
File "", line 27, in
NameError: name 'Factory' is not defined
I want to make Project. This Picture. But The Button location always not good.
This is My Python KIVY code
#project.kv file
kv = '''
BoxLayout:
orientation: 'vertical'
Upper_bar:
size_hint: (1, 0.1)
Label:
text: 'Select Mode'
BoxLayout:
padding: [90, 40]
size_hint: (1, 0.5)
orientation: 'horizontal'
Button:
size_hint: (0.5, 1)
text: 'Object'
BoxLayout:
Button:
size_hint: (0.5, 1)
text: 'Street'
<Upper_bar>:
BoxLayout:
Button:
size_hint: (0.3, 1)
text: 'Information'
on_press: Factory.InformationPop().open()
<InformationPop#Popup>:
size_hint: 0.5, 0.5
tittle: 'Information'
auto_dismiss: True
BoxLayout:
orientation: 'vertical'
Label:
text:
"""Name:
Student Number:
E-mail: """
Button:
text:
'Close'
on_press:
root.dismiss()
size_hint_y: None
height: '40dp'
'''
class Upper_bar(BoxLayout):
pass
class AIObjectCameraApp(App):
def build(self):
return Builder.load_string(kv)
if __name__ == '__main__':
AIObjectCameraApp().run()
You just forgot to add the import of Factory at the top of your kv string:
#:import Factory kivy.factory.Factory
Related
I keep getting a Name Error reporting "name TripButton is not defined" although I have a button called TripButton defined in the same .kv file.
#:kivy 1.11.1
<TripButton#Button>:
size_hint: (0.15,0.15)
pos_hint: {'y':0.84}
text:"Test Text"
<MyPopup>:
size_hint: 0.5, 0.5
auto_dismiss: False
title: 'New Trip'
BoxLayout:
orientation: 'vertical'
TextInput:
id: trip_name
multiline: False
BoxLayout:
size_hint_y: None
height: 30
Button:
text: 'Submit'
on_release:
root.parent.parent.add_widget(TripButton(text=trip_name.text, size_hint=(1,0.1)))
root.dismiss()
Button:
text: 'Cancel'
on_release: root.dismiss()
<FirstScreen>:
name: 'first'
FloatLayout:
BoxLayout:
size_hint: (0.95, 0.95)
pos_hint: {'center_x':0.5, 'center_y':0.5}
orientation: "vertical"
canvas.before:
Color:
rgba: (1, 0, 0, 1) # Red color
Rectangle:
pos: self.pos
size: self.size
BoxLayout:
TripButton:
Button:
text: 'Add Trip'
font_size: 12
size_hint: (0.1, 0.1)
pos_hint: {'right':1, 'bottom':1}
on_release: app.open_popup()
pos_hint: {'right':1, 'bottom':1}
on_release: app.open_popup()
I tried declaring the TripButton class above and below the MyPopup class and that didn't work. I compared my code with the kivy documentation for dynamic classes and the from what I can tell I'm matching the syntax. I tried importing the Button class in both the python file and the .kv file and that hasn't worked.
To clarify all of this is in the same .kv file in the same directory as the python file. the app runs until I click the submit button in MyPopup then the program crashes and I get the NameError. This is what I have in my python file.
from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.popup import Popup
class FirstScreen(Screen):
pass
class MyPopup(Popup):
pass
class MyApp(App):
def build(self):
sm = ScreenManager()
sm.add_widget(FirstScreen(name='first'))
sm.current = 'first'
return sm
def open_popup(self):
p = MyPopup()
p.open()
def add_button(self):
pass
if __name__ == '__main__':
MyApp().run()
What am I doing wrong? What else I can try? Thanks for your time.
To access classes defined within kv file use kivy.factory.Factory
Add id attribute to your button's BoxLayout, so replace following part of kv file:
BoxLayout:
TripButton:
with
BoxLayout:
id: trip_buttons
TripButton:
then replace:
root.parent.parent.add_widget(TripButton(text=trip_name.text, size_hint=(1,0.1)))
with:
app.root.current_screen.ids.trip_buttons.add_widget(kivy.factory.Factory.TripButton(text=trip_name.text, size_hint=(1,0.1)))
You also duplicated following lines within last button definition on first screen. Replace:
pos_hint: {'right':1, 'bottom':1}
on_release: app.open_popup()
pos_hint: {'right':1, 'bottom':1}
on_release: app.open_popup()
with
pos_hint: {'right':1, 'bottom':1}
on_release: app.open_popup()
I have made a button that when released opens a popup in kivy, which contains a Float Layout. I want the layout to contain a filechooser, so the user can select a folder to save something, and a button that saves this choice and closes the popup at the same time.
I am currently trying to figure out how to make the button close the popup at first. I came up with this code and I really have no idea why it doesn't close the popup, but it doesn't. I don't get any error at all, just nothing happens. The code is this in kvlang:
#:import Factory kivy.factory.Factory
<BoxLayout3>:
Label:
text: "Audio:"
halign: 'center'
font_size:'20sp'
CheckBox:
<BoxLayout4>:
Label:
text: "Video:"
halign: 'center'
font_size:'20sp'
CheckBox:
<FileWidget>:
FileChooserIconView:
id: filechooser
Button:
id:my_button
text: 'Save'
size_hint: (0.1, 0.1)
pos_hint:{'x': 0, 'y': 0}
on_release:Factory.MyPopup().dismiss()
<MyPopup>:
id:pop
auto_dismiss: False
title: "Select a folder"
FileWidget:
<FloatLayout1>:
Button:
text: 'Folder'
on_release: Factory.MyPopup().open()
size_hint: None, None
size: 130, 50
pos_hint: {'x':0.2,'y':.4}
<FloatLayout2>:
Spinner:
id: spinner_id
text: "Quality"
values: ['144p', '240p', '360p', '480p', '720p', '1080p', '1440p', '2160p']
on_text: root.spinner_clicked(spinner_id.text)
size_hint: None, None
size: 130, 50
pos_hint: {'x': .2, 'y':.4}
<BoxLayout2>:
cols:4
BoxLayout3:
BoxLayout4:
FloatLayout2:
FloatLayout1:
BoxLayout1:
<BoxLayout1>:
orientation:'vertical'
cols: 3
Label:
text: "YouTube Downloader"
halign: 'center'
bold: True
font_size:'50sp'
TextInput:
size_hint: (.5, .2)
multiline: False
hint_text: 'Enter the link of the Youtube video you want to download.'
pos_hint: {"x": 0.25}
BoxLayout2:
Button:
text: "Submit"
size_hint: (.5, .2)
pos_hint: {"x": 0.25}
My python code is(it isn't finished yet):
class MyPopup(Popup):
pass
class FloatLayout1(FloatLayout):
pass
class FileWidget(FloatLayout):
pass
class FloatLayout2(FloatLayout):
def spinner_clicked(self, value):
pass
class StackLayout(StackLayout):
pass
class BoxLayout1(BoxLayout):
pass
class BoxLayout2(BoxLayout):
pass
class BoxLayout3(BoxLayout):
pass
class BoxLayout4(BoxLayout):
pass
class MyApp(App):
pass
So I'm working on making a fully functional login screen for my first serious kivy app and I want to be able to change windows/screens when the user presses on a button. I know normally in the KV file i'd just use on release but I want the on release to call to a method to verify the users credentials, and if those credentials are correct then change screens. So how in python itself would I be able to call to screen manager to change the screen?
from kivy.app import App
from kivy.lang.builder import Builder
from kivy.uix.screenmanager import Screen, ScreenManager
class LoginLayout(Screen):
def login(self, **kwargs):
print("Login function working")
userEmail = self.ids.username.text
userPassword = self.ids.password.text
print(userEmail)
print(userPassword)
ScreenManager.current('emailWindow')
class EmailWindow(Screen):
pass
class WindowManager(ScreenManager):
pass
kv = Builder.load_file('loginScreen.kv')
class LoginScreen(App):
def build(self):
return kv
app = LoginScreen()
app.run()
KV
ScreenManager:
LoginLayout:
EmailWindow:
<LoginLayout>:
name: 'loginWindow'
canvas.before:
Color:
rgba: (28/255, 102/255, 137/255, 1)
Rectangle:
pos: self.pos
size: self.size
BoxLayout:
orientation: 'vertical'
size: root.width, root.height
Label:
text: 'Username'
font_name: 'Framd.ttf'
font_size: 20
TextInput:
id: username
multiline: False
size_hint: (.5, .3)
pos_hint: {'center_x' : .5}
Label:
text: 'Password'
font_name: 'Framd.ttf'
font_size: 20
TextInput:
id: password
multiline: False
size_hint: (.5, .3)
pos_hint: {'center_x' : .5}
Button:
text: 'Login'
size_hint: (.2, .8)
pos_hint: {'center_x' : 0.5}
font_name: 'Framd.ttf'
on_release: root.login()
Button:
text: 'Create Account'
size_hint: (.2, .8)
pos_hint: {'center_x' : 0.5}
font_name: 'Framd.ttf'
Button:
text: 'Forgot login Info'
size_hint: (.2, .8)
pos_hint: {'center_x' : 0.5}
font_name: 'Framd.ttf'
<EmailWindow>:
name: 'emailWindow'
canvas.before:
Color:
rgba: (28/255, 102/255, 137/255, 1)
Rectangle:
pos: self.pos
size: self.size
BoxLayout:
orientation: 'vertical'
size: root.width, root.height
Label:
text: 'To:'
font_name: 'Framd.ttf'
TextInput:
multiline: False
pos_hint: {'center_x': 0.5}
size_hint: (.5, .3)
font_name: 'Framd.ttf'
Label:
text: 'Subject'
TextInput:
multiline: False
pos_hint: {'center_x': 0.5}
size_hint: (.5, .3)
font_name: 'Framd.ttf'
Label:
text: 'Body'
font_name: 'Framd.ttf'
TextInput:
size_hint: (.5, .7)
pos_hint: {'center_x': 0.5}
multiline: True
Button:
text: 'send'
size_hint: (.2, .8)
pos_hint: {'center_x' : 0.5}
font_name: 'Framd.ttf'
When a Screen gets added to a ScreenManager, it gets a manager attribute set to the ScreenManager. So in your login() method you can do:
self.manager.current = 'emailWindow'
instead of:
ScreenManager.current('emailWindow')
Note that using ScreenManager, as you do above, references the ScreenManager class, not the ScreenManager instance that is in your App.
I am having trouble taking a text input value from one screen and passing it as the text in a label in another screen. I want to take the text input from a TeamNameSelect screen and have those be the text values in the labels of a GameWindow screen. I've tried going through similar questions and answers on here but have been unable to get this to work. Any help would be greatly appreciated!
.py file
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.button import Button
from kivy.uix.widget import Widget
class NewGame(Screen):
pass
class GameWindow(Screen):
def teamNames(self, *args):
self.teamOne_input.text = self.manager.ids.TeamNameSelect.ids.teamOne.text
self.teamTwo_input.text = self.manager.ids.TeamNameSelect.ids.teamTwo.text
pass
class TeamNameSelect(Screen):
pass
class WinMan(ScreenManager):
pass
kv = Builder.load_file("my.kv")
sm = WinMan()
screens = [NewGame(name='goBack'), TeamNameSelect(name='teamSelect'), GameWindow(name='startGame')]
for screen in screens:
sm.add_widget(screen)
sm.current = 'goBack'
class MyApp(App):
def build(self):
return sm
if __name__ == '__main__':
MyApp().run()
.kv file
<TeamNameSelect>:
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'vertical'
padding: 10
Label:
text: 'Team 1 Name: '
TextInput:
id: teamOne
text: ''
multiline: False
BoxLayout:
orientation: 'vertical'
padding: 10
Label:
text: 'Team 2 Name: '
TextInput:
id: teamTwo
text: ''
multiline: False
BoxLayout:
Button:
text: 'Go Back'
on_release: root.manager.current = 'goBack'
Button:
text: 'Game On!'
on_release:
root.manager.current = 'gameWindow'
root.teamNames()
<GameWindow>:
teamOne_input: teamOne_input
teamTwo_input: teamTwo_input
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'horizontal'
size_hint: (1, 0.1)
Button:
text: '. . .'
on_release: root.manager.current = 'goBack'
Label:
font_size: 33
text: 'Team'
Label:
font_size: 33
id: teamOne_input
text: ''
Label:
font_size: 33
text: 'Team'
Label:
font_size: 33
id: teamTwo_input
text: ''
BoxLayout:
orientation: 'horizontal'
size_hint: (0.75,1)
Label:
font_size: 33
text: '' # Instructions on how to play game
Label:
font_size: 39
text: '' # Future playing area to develop
You have 2 preliminary errors:
There is no Screen with name "gameWindow" so I suppose the OP wanted to write "startGame".
The root in on_release is the "TeamNameSelect" that clearly has nothing that does not have the teamNames() method.
On the other hand the "manager" is not implemented in the .kv so it cannot have any "id", the solution is to access the screen with name "teamSelect" using the get_screen() method.
Considering the above, the solution is:
class GameWindow(Screen):
def teamNames(self):
select_screen = self.manager.get_screen("teamSelect")
self.teamOne_input.text = select_screen.ids.teamOne.text
self.teamTwo_input.text = select_screen.ids.teamTwo.text
Button:
text: 'Game On!'
on_release:
root.manager.current = 'startGame'
root.manager.current_screen.teamNames()
I am trying to make a GUI in python using kivy and TabeedPanel . some problems are coming for putting on exact location of label, TextInput , button. I'm unable to put multiple label, TextInput altogether. That's why I commented in the code. I tried GridLayout also, but Unable to arrange exactly.
Can you help me? Thanks in advance.
from kivy.app import App
from kivy.uix.tabbedpanel import TabbedPanel, TabbedPanelItem
from kivy.lang import Builder
from kivy.uix.checkbox import CheckBox
from kivy.uix.button import Button
from kivy.app import App
from kivy.uix.textinput import TextInput
import json
Builder.load_string("""
<Test>:
do_default_tab: False
TabbedPanelItem:
text: 'page1'
BoxLayout:
Label:
text: 'label'
TextInput:
text: 'TextInput'
CheckBox:
text: 'CheckBox'
Button:
text: 'save'
#BoxLayout:
# orientation: 'vertical'
# BoxLayout:
# orientation: 'horizontal'
# Label:
# text: 'label'
TabbedPanelItem:
text: 'page2'
BoxLayout:
Label:
text: 'number1'
#TextInput:
# text: 'TextInput'
Label:
text: 'number2'
# TextInput:
# text: 'TextInput'
Button:
text: 'button'
""")
class Test(TabbedPanel):
pass
class MyApp(App):
def build(self):
test = Test()
return test
if __name__ == '__main__':
MyApp().run()
Following your example, you can use BoxLayouts but you need to nest them correctly:
from kivy.app import App
from kivy.uix.tabbedpanel import TabbedPanel
from kivy.lang import Builder
Builder.load_string("""
<Test>:
do_default_tab: False
TabbedPanelItem:
text: 'page1'
BoxLayout:
padding: 50, 50, 50, 50
orientation: 'horizontal'
BoxLayout:
spacing: 50
orientation: 'vertical'
size_hint_x: 1
Label:
text: 'label'
Label:
text: 'label'
Label:
text: 'label'
BoxLayout:
spacing: 50
orientation: 'vertical'
TextInput:
text: 'TextInput'
TextInput:
text: 'TextInput'
TextInput:
text: 'TextInput'
BoxLayout:
spacing: 50
orientation: 'vertical'
size_hint_x: 0.40
CheckBox:
text: 'CheckBox'
CheckBox:
text: 'CheckBox'
CheckBox:
text: 'CheckBox'
BoxLayout:
spacing: 50
orientation: 'vertical'
size_hint_x: 0.60
Button:
text: 'save'
Button:
text: 'save'
Button:
text: 'save'
TabbedPanelItem:
text: 'page2'
BoxLayout:
padding: 50, 50, 50, 50
orientation: 'horizontal'
BoxLayout:
spacing: 50
orientation: 'vertical'
Label:
text: 'label'
Label:
text: 'label'
Label:
BoxLayout:
spacing: 50
orientation: 'vertical'
TextInput:
text: 'TextInput'
TextInput:
text: 'TextInput'
Button:
spacing: 100
text: 'button'
""")
class Test(TabbedPanel):
pass
class MyApp(App):
def build(self):
test = Test()
return test
if __name__ == '__main__':
MyApp().run()
Output:
Here's an example using GridLayout that I made a reference to in your other question. FYI, there are many ways you could go about this. I personally like using gridlayout with forms because it's easy to put then ScrollViews if need be.
Read up on the kv language here to help keep things DRY and other things. If a widget is defined in kv, then you don't need to import them at the top of your file.
Example:
from kivy.app import App
from kivy.uix.tabbedpanel import TabbedPanel
from kivy.lang import Builder
Builder.load_string("""
<MyLabel#Label>:
size_hint: (None, None)
size: (400, 100)
<MyTextInput#TextInput>:
size_hint: (None, None)
size: (600, 100)
<MyButton#Button>:
size_hint: (None, None)
size: (400, 100)
<MyCheckBox#AnchorLayout>:
# I'm nesting the checkbox here b/c it is hard to see if the background is not lightened.
size_hint: (None, None)
size: (100, 100)
anchor_x: "center"
anchor_y: "center"
canvas.before:
Color:
rgba: [0.7, 0.7, 0.7, 1]
Rectangle:
pos: self.pos
size: self.size
CheckBox:
<Test>:
do_default_tab: False
TabbedPanelItem:
text: 'page1'
GridLayout:
rows: 3
cols: 4
padding: [10, 100]
spacing: [10, 50]
MyLabel:
text: "Label 1"
MyTextInput:
MyCheckBox:
MyButton:
text: "Button 1"
MyLabel:
text: "Label 3"
MyTextInput:
MyCheckBox:
MyButton:
text: "Button 2"
MyLabel:
text: "Label 3"
MyTextInput:
MyCheckBox:
MyButton:
text: "Button 3"
TabbedPanelItem:
text: 'page2'
GridLayout:
rows: 3
cols: 2
padding: [10, 100]
spacing: [10, 50]
MyLabel:
text: "Label 1"
MyTextInput:
MyLabel:
text: "Label 2"
MyTextInput:
# blank spacer widget
Widget:
size_hint: (None, None)
size: (400, 100)
MyButton:
text: "Button"
""")
class Test(TabbedPanel):
pass
class MyApp(App):
def build(self):
return Test()
if __name__ == '__main__':
MyApp().run()