Changing button text with popup text input kivy - python-3.x

Question

So, I'm new to kivy and can't get this code to work. I'm trying to update a button text with a popup text input. The popup shows when the button is pressed, and when it's dismissed it should update the text on the button with whatever text was typed in it.
I've tried many variations of this code, but no one have worked. Either nothing happens or I get this error:
AttributeError: 'super' object has no attribute '__getattr__'
Here it is:
main.py
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.popup import Popup
class MainWidget(GridLayout):
pass
class PopText(Popup):
def textChange(self):
MyButton().change()
def getText(self):
text = self.display
return text
class MyButton(AnchorLayout):
def change(self):
self.ids.equip_bt.text = PopText().getText()
print(self.ids.my_bt.text)
class MyApp(App):
def build(self):
return MainWidget()
if __name__ == "__main__":
MyApp().run()
my.kv
#:kivy 1.10.0
#:import F kivy.factory.Factory
<PopText>:
size_hint: .7, .3
title: "Input Text"
on_dismiss: self.textChange()
display: pop_text.text
TextInput:
id: pop_text
focus: True
multiline: False
on_text_validate: root.dismiss()
<MyButton>:
anchor_y: "top"
anchor_x: "right"
Button:
id: my_bt
text: "Input Text"
on_release: F.PopText().open()
<MainWidget>:
cols: 1
rows: 2
MyButton:
MyButton:
Any ideas on how to solve this?

Answer 1

Here is a minimum example of what you are trying to achieve. The hard part is connection the button from the Popup to the Button which opened it. I am going through the app class to achieve that. I got to admit it is not a pretty solution.
from kivy.app import App
from kivy.uix.popup import Popup
from kivy.uix.button import Button
class PopupBttn(Button):
def openPopup(self):
Pop = TextPopup().open(self.text)
class TextPopup(Popup):
def open(self, text, **kwargs):
super(TextPopup, self).open(**kwargs)
self.ids.txtipt.text = text
class MyApp(App):
pass
if __name__ == "__main__":
MyApp().run()
kv file:
BoxLayout:
PopupBttn:
id: bttn
text: 'open Popup'
on_press: self.openPopup()
<TextPopup>:
BoxLayout:
orientation: "vertical"
TextInput:
id: txtipt
Button:
text: "OK"
on_release: app.root.ids.bttn.text=root.ids.txtipt.text
on_release: root.dismiss()
Here is an updated version to use multiple buttons. Unfortunately, you will need to set ids and name to the string of id per Button.
python file
from kivy.app import App
from kivy.uix.popup import Popup
from kivy.uix.button import Button
from kivy.properties import StringProperty
class PopupBttn(Button):
def openPopup(self):
print(self.name)
Pop = TextPopup().open(self.text, self.name)
class TextPopup(Popup):
bttnid = StringProperty()
text = StringProperty()
def open(self, text, id, **kwargs):
super(TextPopup, self).open(**kwargs)
self.ids.txtipt.text = text
self.bttnid = id
def setText(self):
App.get_running_app().root.ids[self.bttnid].text = self.text
class MyApp(App):
pass
if __name__ == "__main__":
MyApp().run()
kv file
BoxLayout:
orientation: 'vertical'
PopupBttn:
name: 'one'
id: one
text: 'I am the first Button'
PopupBttn:
name: 'two'
id: two
PopupBttn:
name: 'three'
id: three
PopupBttn:
name: 'four'
id: four
text: 'I am the fourth button'
<PopupBttn>:
text: 'open Popup'
on_press: self.openPopup()
<TextPopup>:
text: txtipt.text
BoxLayout:
orientation: "vertical"
TextInput:
id: txtipt
Button:
text: "OK"
on_release: root.setText()
on_release: root.dismiss()

Answer 2

In order to update both buttons, you need to assign unique id to each of them. Please refer to the example below for details.
Example
main.py
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.uix.anchorlayout import AnchorLayout
from kivy.uix.popup import Popup
from kivy.properties import ObjectProperty
class MainWidget(GridLayout):
btn_top = ObjectProperty()
btn_bottom = ObjectProperty()
class PopText(Popup):
pass
class MyButton(AnchorLayout):
my_btn = ObjectProperty()
class TestApp(App):
title = "Changing button text with popup text input Kivy"
def build(self):
return MainWidget()
if __name__ == "__main__":
TestApp().run()
test.kv
#:kivy 1.10.0
#:import F kivy.factory.Factory
<PopText>:
size_hint: .7, .3
title: "Input Text"
TextInput:
focus: True
multiline: False
on_text_validate:
app.root.btn_top.my_btn.text = self.text
app.root.btn_bottom.my_btn.text = self.text
root.dismiss()
<MyButton>:
my_btn: my_bt
anchor_y: "top"
anchor_x: "right"
Button:
id: my_bt
text: "Input Text"
on_release: F.PopText().open()
<MainWidget>:
btn_top: btn_top
btn_bottom: btn_bottom
cols: 1
rows: 2
MyButton:
id: btn_top
MyButton:
id: btn_bottom
Output