Bind TextInput to Label in .kv File
I was following the tutorial video "Kivy crash course 3: More interesting widget interactions" by Alexander Taylor, but he is writing the code in python rather than in a .kv file. I was trying to follow the tutorial using a .kv file instead, but I am confused on how to bind the TextInput text to the label text.
Is it possible to write it in the .kv file or does it have to be written in the .py file. Can you give an example?
.py
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.scatter import Scatter
from kivy.uix.label import Label
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.textinput import TextInput
from kivy.uix.boxlayout import BoxLayout
class MainApp(App):
def build(self):
return pres
pres = Builder.load_file("main.kv")
if __name__ == "__main__":
MainApp().run()
.kv
BoxLayout:
orientation: 'vertical'
TextInput:
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
text: ""
FloatLayout:
Scatter:
Label:
text: ""
font_size: 150
python python-3.x kivy
asked Nov 13 '18 at 18:00
SpencerSpencer
33
add a comment |
I was following the tutorial video "Kivy crash course 3: More interesting widget interactions" by Alexander Taylor, but he is writing the code in python rather than in a .kv file. I was trying to follow the tutorial using a .kv file instead, but I am confused on how to bind the TextInput text to the label text.
Is it possible to write it in the .kv file or does it have to be written in the .py file. Can you give an example?
.py
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.scatter import Scatter
from kivy.uix.label import Label
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.textinput import TextInput
from kivy.uix.boxlayout import BoxLayout
class MainApp(App):
def build(self):
return pres
pres = Builder.load_file("main.kv")
if __name__ == "__main__":
MainApp().run()
.kv
BoxLayout:
orientation: 'vertical'
TextInput:
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
text: ""
FloatLayout:
Scatter:
Label:
text: ""
font_size: 150
python python-3.x kivy
asked Nov 13 '18 at 18:00
SpencerSpencer
33
add a comment |
I was following the tutorial video "Kivy crash course 3: More interesting widget interactions" by Alexander Taylor, but he is writing the code in python rather than in a .kv file. I was trying to follow the tutorial using a .kv file instead, but I am confused on how to bind the TextInput text to the label text.
Is it possible to write it in the .kv file or does it have to be written in the .py file. Can you give an example?
.py
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.scatter import Scatter
from kivy.uix.label import Label
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.textinput import TextInput
from kivy.uix.boxlayout import BoxLayout
class MainApp(App):
def build(self):
return pres
pres = Builder.load_file("main.kv")
if __name__ == "__main__":
MainApp().run()
.kv
BoxLayout:
orientation: 'vertical'
TextInput:
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
text: ""
FloatLayout:
Scatter:
Label:
text: ""
font_size: 150
python python-3.x kivy
asked Nov 13 '18 at 18:00
SpencerSpencer
33
I was following the tutorial video "Kivy crash course 3: More interesting widget interactions" by Alexander Taylor, but he is writing the code in python rather than in a .kv file. I was trying to follow the tutorial using a .kv file instead, but I am confused on how to bind the TextInput text to the label text.
Is it possible to write it in the .kv file or does it have to be written in the .py file. Can you give an example?
.py
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.scatter import Scatter
from kivy.uix.label import Label
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.textinput import TextInput
from kivy.uix.boxlayout import BoxLayout
class MainApp(App):
def build(self):
return pres
pres = Builder.load_file("main.kv")
if __name__ == "__main__":
MainApp().run()
.kv
BoxLayout:
orientation: 'vertical'
TextInput:
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
text: ""
FloatLayout:
Scatter:
Label:
text: ""
font_size: 150
python python-3.x kivy
python python-3.x kivy
asked Nov 13 '18 at 18:00
SpencerSpencer
33
asked Nov 13 '18 at 18:00
SpencerSpencer
33
asked Nov 13 '18 at 18:00
SpencerSpencer
33
asked Nov 13 '18 at 18:00
SpencerSpencer
33
asked Nov 13 '18 at 18:00
SpencerSpencer
33
33
add a comment |
add a comment |
1 Answer
1
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oldest
votes
the binding in .kv are simpler due to the fact that it is a declarative language, it is enough with an assignment but for that the element that has the information must have an id.
*.kv
BoxLayout:
orientation: 'vertical'
TextInput:
id: ti # <---
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
FloatLayout:
Scatter:
Label:
text: ti.text # <---
font_size: 150
answered Nov 13 '18 at 19:44
eyllanesceyllanesc
77.4k103156
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
the binding in .kv are simpler due to the fact that it is a declarative language, it is enough with an assignment but for that the element that has the information must have an id.
*.kv
BoxLayout:
orientation: 'vertical'
TextInput:
id: ti # <---
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
FloatLayout:
Scatter:
Label:
text: ti.text # <---
font_size: 150
answered Nov 13 '18 at 19:44
eyllanesceyllanesc
77.4k103156
add a comment |
the binding in .kv are simpler due to the fact that it is a declarative language, it is enough with an assignment but for that the element that has the information must have an id.
*.kv
BoxLayout:
orientation: 'vertical'
TextInput:
id: ti # <---
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
FloatLayout:
Scatter:
Label:
text: ti.text # <---
font_size: 150
answered Nov 13 '18 at 19:44
eyllanesceyllanesc
77.4k103156
add a comment |
the binding in .kv are simpler due to the fact that it is a declarative language, it is enough with an assignment but for that the element that has the information must have an id.
*.kv
BoxLayout:
orientation: 'vertical'
TextInput:
id: ti # <---
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
FloatLayout:
Scatter:
Label:
text: ti.text # <---
font_size: 150
answered Nov 13 '18 at 19:44
eyllanesceyllanesc
77.4k103156
the binding in .kv are simpler due to the fact that it is a declarative language, it is enough with an assignment but for that the element that has the information must have an id.
*.kv
BoxLayout:
orientation: 'vertical'
TextInput:
id: ti # <---
size_hint_y: None
height: 200
font_size: 150
hint_text: "Enter Text"
FloatLayout:
Scatter:
Label:
text: ti.text # <---
font_size: 150
answered Nov 13 '18 at 19:44
eyllanesceyllanesc
77.4k103156
answered Nov 13 '18 at 19:44
eyllanesceyllanesc
77.4k103156
answered Nov 13 '18 at 19:44
eyllanesceyllanesc
77.4k103156
answered Nov 13 '18 at 19:44
eyllanesceyllanesc
77.4k103156
77.4k103156
add a comment |
add a comment |
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