Spinner widget in Kivy with Example

Overview:

Kivy offers a spinner object for selecting a value from multiple values.

Like a combo box a spinner object can have multiple values and one of values can be selected.

A callback can be attached to the spinner object to receive notifications on selection of a value from the spinner object.

Example:

# Sample spinner app in kivy
from kivy.uix.label import Label
from kivy.uix.spinner import Spinner

from kivy.uix.floatlayout import FloatLayout

from kivy.app import App

# Make an App by deriving from the App class
class SpinnerExample(App):
def build(self):
layout = FloatLayout()

# configure spinner object and add to layout
self.spinnerObject = Spinner(text="Python", values=("Python", "Java", "C++"))
self.spinnerObject.size_hint = (0.3, 0.2)
self.spinnerObject.pos_hint={'x': .1, 'y':.75}
layout.add_widget(self.spinnerObject)
self.spinnerObject.bind(text=self.on_spinner_select)

# add a label displaying the selection from the spinner
self.spinnerSelection = Label(text="Selected value in spinner is: %s"%self.spinnerObject.text)
layout.add_widget(self.spinnerSelection)
self.spinnerSelection.pos_hint={'x': .1, 'y':.3}

return layout;

# call back for the selection in spinner object
def on_spinner_select(self, spinner, text):
self.spinnerSelection.text = "Selected value in spinner is: %s"%self.spinnerObject.text
#print('The spinner', spinner, 'have text', text)

# Run the app
if __name__ == '__main__':
SpinnerExample().run()

Output:

Spinner widget in Kivy - Example