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Python – Spinner in GTK+ 3
  • Last Updated : 29 Aug, 2020

The Gtk.Spinner displays an icon-size spinning animation. It is often used as an alternative to a GtkProgressBar for displaying an indefinite activity. We can use Gtk.Spinner.start() to start and Gtk.Spinner.stop() to stop the animation.

Example :

Python3

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code

import gi
  
gi.require_version("Gtk", "3.0")
from gi.repository import Gtk
  
  
class SpinnerAnimation(Gtk.Window):
    def __init__(self):
  
        Gtk.Window.__init__(self, title="GFG")
        self.set_border_width(3)
        self.connect("destroy", Gtk.main_quit)
  
        self.button = Gtk.ToggleButton(label="Start Spinning")
        self.button.connect("toggled", self.on_button_toggled)
        self.button.set_active(False)
  
        self.spinner = Gtk.Spinner()
  
        self.grid = Gtk.Grid()
        self.grid.add(self.button)
        self.grid.attach_next_to(
            self.spinner, self.button, Gtk.PositionType.BOTTOM, 1, 2
        )
        self.grid.set_row_homogeneous(True)
  
        self.add(self.grid)
        self.show_all()
  
    def on_button_toggled(self, button):
  
        if button.get_active():
            self.spinner.start()
            self.button.set_label("Stop Spinning")
  
        else:
            self.spinner.stop()
            self.button.set_label("Start Spinning")
  
  
myspinner = SpinnerAnimation()
  
Gtk.main()

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Output :

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