Table Of Contents

• Popup
  • Examples
  • Popup Events
  • Popup
    • Popup.add_widget()
    • Popup.on_touch_down()
  • PopupException

Popup

New in version 1.0.7.

The Popup widget is used to create modal popups. By default, the popup will cover the whole “parent” window. When you are creating a popup, you must at least set a Popup.title and Popup.content.

Remember that the default size of a Widget is size_hint=(1, 1). If you don’t want your popup to be fullscreen, either use size hints with values less than 1 (for instance size_hint=(.8, .8)) or deactivate the size_hint and use fixed size attributes.

Changed in version 1.4.0: The Popup class now inherits from ModalView. The Popup offers a default layout with a title and a separation bar.

Examples

Example of a simple 400x400 Hello world popup:

popup = Popup(title='Test popup',
    content=Label(text='Hello world'),
    size_hint=(None, None), size=(400, 400))

By default, any click outside the popup will dismiss/close it. If you don’t want that, you can set auto_dismiss to False:

popup = Popup(title='Test popup', content=Label(text='Hello world'),
              auto_dismiss=False)
popup.open()

To manually dismiss/close the popup, use dismiss:

popup.dismiss()

Both open() and dismiss() are bindable. That means you can directly bind the function to an action, e.g. to a button’s on_press:

# create content and add to the popup
content = Button(text='Close me!')
popup = Popup(content=content, auto_dismiss=False)

# bind the on_press event of the button to the dismiss function
content.bind(on_press=popup.dismiss)

# open the popup
popup.open()

Same thing in KV language only with Factory:

#:import Factory kivy.factory.Factory
<MyPopup@Popup>:
    auto_dismiss: False
    Button:
        text: 'Close me!'
        on_release: root.dismiss()

Button:
    text: 'Open popup'
    on_release: Factory.MyPopup().open()

Note

Popup is a special widget. Don’t try to add it as a child to any other widget. If you do, Popup will be handled like an ordinary widget and won’t be created hidden in the background.

BoxLayout:
    MyPopup:  # bad!

Popup Events

There are two events available: on_open which is raised when the popup is opening, and on_dismiss which is raised when the popup is closed. For on_dismiss, you can prevent the popup from closing by explicitly returning True from your callback:

def my_callback(instance):
    print('Popup', instance, 'is being dismissed but is prevented!')
    return True
popup = Popup(content=Label(text='Hello world'))
popup.bind(on_dismiss=my_callback)
popup.open()

class kivy.uix.popup.Popup(**kwargs)

Bases: kivy.uix.modalview.ModalView

Popup class. See module documentation for more information.

Events:

on_open:

Fired when the Popup is opened.

on_dismiss:

Fired when the Popup is closed. If the callback returns True, the dismiss will be canceled.

add_widget(widget, *args, **kwargs)

Add a new widget as a child of this widget.

Parameters:

widget: Widget

Widget to add to our list of children.

index: int, defaults to 0

Index to insert the widget in the list. Notice that the default of 0 means the widget is inserted at the beginning of the list and will thus be drawn on top of other sibling widgets. For a full discussion of the index and widget hierarchy, please see the Widgets Programming Guide.

New in version 1.0.5.

canvas: str, defaults to None

Canvas to add widget’s canvas to. Can be ‘before’, ‘after’ or None for the default canvas.

New in version 1.9.0.

>>> from kivy.uix.button import Button
>>> from kivy.uix.slider import Slider
>>> root = Widget()
>>> root.add_widget(Button())
>>> slider = Slider()
>>> root.add_widget(slider)

on_touch_down(touch)

touch down event handler.

exception kivy.uix.popup.PopupException

Bases: Exception

Popup exception, fired when multiple content widgets are added to the popup.

New in version 1.4.0.

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