how to change a kivy button text in kivy lang from python file
from kivy.app import App
from kivy.lang.builder import Builder
from kivy.properties import StringProperty
from kivy.uix.boxlayout import BoxLayout
class Container(BoxLayout):
message = StringProperty()
def retranslate(self, language):
texts = {"en": "Hello World", "fr": "Salut monde"}
self.message = texts.get(language, "")
Builder.load_string(
"""
:
orientation: 'vertical'
Button:
text: root.message
Button:
text: "Eng"
on_press: root.retranslate("en")
Button:
text: "Fra"
on_press: root.retranslate("fr")
"""
)
class MyApp(App):
def build(self):
w = Container()
w.retranslate("en")
return w
if __name__ == "__main__":
MyApp().run()
Here is what the above code is Doing:
1. The Container class is a subclass of BoxLayout. It has a message property that is a StringProperty.
2. The retranslate method takes a language parameter and sets the message property to the appropriate text.
3. The Builder.load_string method is used to create the GUI.
4. The MyApp class is a subclass of App. It creates an instance of Container and calls the retranslate method.
5. The MyApp class is run.
