kivy- how to add function after press MDFloatingActionButtonSpeedDial

Question

I am using a floating action button speed dial in kivymd. I want to add functions (navigate to the another screen) after press singular buttons. Can anyone tell me please by an example how do I do it?

<HomeScreen>:
    name: "home"
  MDFloatingActionButtonSpeedDial:
        data: 
            {'home': 'Domov',
            'lightning-bolt': 'Ciele',
            'notebook': 'Moje testy'}

<TestScreen>:
    name: "test"

<GoalsScreen>:
    name: "goals"
    
<HistoryScreen>:
    name: "history"

I tried something like normall buttons, but it doesn´ t work.

on_release:
         root.manager.current = "test"

Answer 1

You can add a callback to the MDFloatingActionButtonSpeedDial:

  MDFloatingActionButtonSpeedDial:
        callback: app.call
        data: 
            {'home': 'Domov',
            'lightning-bolt': 'Ciele',
            'notebook': 'Moje testy'}

with the call() method defined in the app:

def call(self, button):
    print('called from', button)

Then any button press will trigger the call() method.