There is something in kivy I do not understand, and am hoping that someone could shed light. I have done a lot of reading in this topic but it just doesn't seem to be connecting in my head.
My issue comes from linking a function to a kivy button. Right now I am trying to learn how to do a simple function:
def Math():
print 1+1
What I would like to do something more complex:
def Math(a,b):
print a^2 + b^2
Where a
and b
are input labels from kivy, and upon clicking a button the answer will be printed.
This is what I have so far:
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen, NoTransition
from kivy.uix.widget import Widget
from kivy.uix.floatlayout import FloatLayout
#######``Logics``#######
class Math(FloatLayout):
def add(self):
print 1+1
#######``Windows``#######
class MainScreen(Screen):
pass
class AnotherScreen(Screen):
pass
class ScreenManagement(ScreenManager):
pass
presentation = Builder.load_file("GUI_Style.kv")
class MainApp(App):
def build(self):
return presentation
if __name__ == "__main__":
MainApp().run()
This is my kivy language file:
import NoTransition kivy.uix.screenmanager.NoTransition
ScreenManagement:
transition: NoTransition()
MainScreen:
AnotherScreen:
<MainScreen>:
name: "main"
FloatLayout:
Button:
on_release: app.root.current = "other"
text: "Next Screen"
font_size: 50
color: 0,1,0,1
font_size: 25
size_hint: 0.3,0.2
pos_hint: {"right":1, "top":1}
<AnotherScreen>:
name: "other"
FloatLayout:
Button:
color: 0,1,0,1
font_size: 25
size_hint: 0.3,0.2
text: "add"
pos_hint: {"x":0, "y":0}
on_release: root.add
Button:
color: 0,1,0,1
font_size: 25
size_hint: 0.3,0.2
text: "Back Home"
on_release: app.root.current = "main"
pos_hint: {"right":1, "top":1}