Action Bar¶

New in version 1.8.0.

The ActionBar widget is like Android’s ActionBar, where items are stacked horizontally. When the area becomes to small, widgets are moved into the ActionOverflow area.

An ActionBar must contain an ActionView with various ContextualActionViews. An ActionView must contain a child ActionPrevious which may have title, app_icon and previous_icon properties. ActionView children must be subclasses of ActionItems. Some predefined ones include an ActionButton, an ActionToggleButton, an ActionCheck, an ActionSeparator and an ActionGroup.

An ActionGroup is used to display ActionItems in a group. An ActionView will always display an ActionGroup after other ActionItems. An ActionView contains an ActionOverflow, but this is only made visible when required i.e. the available area is too small to fit all the widgets. A ContextualActionView is a subclass of an:class:ActionView.

Changed in version 1.10.1: ActionGroup core rewritten from Spinner to pure DropDown

class kivy.uix.actionbar.ActionBar(**kwargs)[source]¶

Bases: kivy.uix.boxlayout.BoxLayout

ActionBar class, which acts as the main container for an ActionView instance. The ActionBar determines the overall styling aspects of the bar. ActionItems are not added to this class directly, but to the contained ActionView instance.

Events:

on_previous: Fired when action_previous of action_view is pressed.

Please see the module documentation for more information.

action_view¶

action_view of the ActionBar.

action_view is an ObjectProperty and defaults to None or the last ActionView instance added to the ActionBar.

add_widget(widget, *args, **kwargs)[source]¶: Changed in version 2.1.0: Renamed argument view to widget.

background_color¶

Background color, in the format (r, g, b, a).

background_color is a ColorProperty and defaults to [1, 1, 1, 1].

Changed in version 2.0.0: Changed from ListProperty to ColorProperty.

background_image¶

Background image of the ActionBars default graphical representation.

background_image is a StringProperty and defaults to ‘atlas://data/images/defaulttheme/action_bar’.

border¶

The border to be applied to the background_image.

border is a ListProperty and defaults to [2, 2, 2, 2]

exception kivy.uix.actionbar.ActionBarException[source]¶

Bases: Exception

ActionBarException class

class kivy.uix.actionbar.ActionButton(**kwargs)[source]¶

Bases: kivy.uix.button.Button, kivy.uix.actionbar.ActionItem

ActionButton class, see module documentation for more information.

The text color, width and size_hint_x are set manually via the Kv language file. It covers a lot of cases: with/without an icon, with/without a group and takes care of the padding between elements.

You don’t have much control over these properties, so if you want to customize its appearance, we suggest you create you own button representation. You can do this by creating a class that subclasses an existing widget and an ActionItem:

class MyOwnActionButton(Button, ActionItem):
    pass

You can then create your own style using the Kv language.

icon¶

Source image to use when the Button is part of the ActionBar. If the Button is in a group, the text will be preferred.

icon is a StringProperty and defaults to None.

class kivy.uix.actionbar.ActionCheck(**kwargs)[source]¶

Bases: kivy.uix.actionbar.ActionItem, kivy.uix.checkbox.CheckBox

ActionCheck class, see module documentation for more information.

class kivy.uix.actionbar.ActionDropDown(**kwargs)[source]¶

Bases: kivy.uix.dropdown.DropDown

ActionDropDown class, see module documentation for more information.

class kivy.uix.actionbar.ActionGroup(**kwargs)[source]¶

Bases: kivy.uix.actionbar.ActionItem, kivy.uix.button.Button

ActionGroup class, see module documentation for more information.

add_widget(widget, *args, **kwargs)[source]¶: Changed in version 2.1.0: Renamed argument item to widget.

clear_widgets(*args, **kwargs)[source]¶: Remove all (or the specified) children of this widget. If the ‘children’ argument is specified, it should be a list (or filtered list) of children of the current widget.

Changed in version 1.8.0: The children argument can be used to specify the children you want to remove.

Changed in version 2.1.0: Specifying an empty children list leaves the widgets unchanged. Previously it was treated like None and all children were removed.

dropdown_width¶

If non zero, provides the width for the associated DropDown. This is useful when some items in the ActionGroup’s DropDown are wider than usual and you don’t want to make the ActionGroup widget itself wider.

dropdown_width is a NumericProperty and defaults to 0.

New in version 1.10.0.

is_open¶

By default, the DropDown is not open. Set to True to open it.

is_open is a BooleanProperty and defaults to False.

mode¶

Sets the current mode of an ActionGroup. If mode is ‘normal’, the ActionGroups children will be displayed normally if there is enough space, otherwise they will be displayed in a spinner. If mode is ‘spinner’, then the children will always be displayed in a spinner.

mode is an OptionProperty and defaults to ‘normal’.

separator_image¶

Background Image for an ActionSeparator in an ActionView.

separator_image is a StringProperty and defaults to ‘atlas://data/images/defaulttheme/separator’.

separator_width¶

Width of the ActionSeparator in an ActionView.

separator_width is a NumericProperty and defaults to 0.

use_separator¶

Specifies whether to use a separator after/before this group or not.

use_separator is a BooleanProperty and defaults to False.

class kivy.uix.actionbar.ActionItem[source]¶

Bases: builtins.object

ActionItem class, an abstract class for all ActionBar widgets. To create a custom widget for an ActionBar, inherit from this class. See module documentation for more information.

background_down¶

Background image of the ActionItem used for the default graphical representation when an ActionItem is pressed.

background_down is a StringProperty and defaults to ‘atlas://data/images/defaulttheme/action_item_down’.

background_normal¶

Background image of the ActionItem used for the default graphical representation when the ActionItem is not pressed.

background_normal is a StringProperty and defaults to ‘atlas://data/images/defaulttheme/action_item’.

important¶

Determines if an ActionItem is important or not. If an item is important and space is limited, this item will be displayed in preference to others.

important is a BooleanProperty and defaults to False.

inside_group¶

(internal) Determines if an ActionItem is displayed inside an ActionGroup or not.

inside_group is a BooleanProperty and defaults to False.

minimum_width¶

Minimum Width required by an ActionItem.

minimum_width is a NumericProperty and defaults to ’90sp’.

mipmap¶

Defines whether the image/icon dispayed on top of the button uses a mipmap or not.

mipmap is a BooleanProperty and defaults to True.

pack_width¶

(read-only) The actual width to use when packing the items. Equal to the greater of minimum_width and width.

pack_width is an AliasProperty.

class kivy.uix.actionbar.ActionOverflow(**kwargs)[source]¶

Bases: kivy.uix.actionbar.ActionGroup

ActionOverflow class, see module documentation for more information.

add_widget(widget, index=0, *args, **kwargs)[source]¶: Changed in version 2.1.0: Renamed argument action_item to widget.

overflow_image¶

Image to be used as an Overflow Image.

overflow_image is a StringProperty and defaults to ‘atlas://data/images/defaulttheme/overflow’.

class kivy.uix.actionbar.ActionPrevious(**kwargs)[source]¶

Bases: kivy.uix.boxlayout.BoxLayout, kivy.uix.actionbar.ActionItem

ActionPrevious class, see module documentation for more information.

app_icon¶

Application icon for the ActionView.

app_icon is a StringProperty and defaults to the window icon if set, otherwise ‘data/logo/kivy-icon-32.png’.

app_icon_height¶

Height of app_icon image.

app_icon_height is a NumericProperty and defaults to 0.

app_icon_width¶

Width of app_icon image.

app_icon_width is a NumericProperty and defaults to 0.

color¶

Text color, in the format (r, g, b, a)

color is a ColorProperty and defaults to [1, 1, 1, 1].

Changed in version 2.0.0: Changed from ListProperty to ColorProperty.

markup¶

If True, the text will be rendered using the MarkupLabel: you can change the style of the text using tags. Check the Text Markup documentation for more information.

markup is a BooleanProperty and defaults to False.

previous_image¶

Image for the ‘previous’ ActionButtons default graphical representation.

previous_image is a StringProperty and defaults to ‘atlas://data/images/defaulttheme/previous_normal’.

previous_image_height¶

Height of previous_image image.

app_icon_width is a NumericProperty and defaults to 0.

previous_image_width¶

Width of previous_image image.

width is a NumericProperty and defaults to 0.

title¶

Title for ActionView.

title is a StringProperty and defaults to ‘’.

with_previous¶

Specifies whether the previous_icon will be shown or not. Note that it is up to the user to implement the desired behavior using the on_press or similar events.

with_previous is a BooleanProperty and defaults to True.

class kivy.uix.actionbar.ActionSeparator(**kwargs)[source]¶

Bases: kivy.uix.actionbar.ActionItem, kivy.uix.widget.Widget

ActionSeparator class, see module documentation for more information.

background_image¶

Background image for the separators default graphical representation.

background_image is a StringProperty and defaults to ‘atlas://data/images/defaulttheme/separator’.

class kivy.uix.actionbar.ActionToggleButton(**kwargs)[source]¶

Bases: kivy.uix.actionbar.ActionItem, kivy.uix.togglebutton.ToggleButton

ActionToggleButton class, see module documentation for more information.

icon¶: Source image to use when the Button is part of the ActionBar. If the Button is in a group, the text will be preferred.

class kivy.uix.actionbar.ActionView(**kwargs)[source]¶

Bases: kivy.uix.boxlayout.BoxLayout

ActionView class, see module documentation for more information.

action_previous¶

Previous button for an ActionView.

action_previous is an ObjectProperty and defaults to None.

add_widget(widget, index=0, *args, **kwargs)[source]¶: Changed in version 2.1.0: Renamed argument action_item to widget.

background_color¶

Background color in the format (r, g, b, a).

background_color is a ColorProperty and defaults to [1, 1, 1, 1].

Changed in version 2.0.0: Changed from ListProperty to ColorProperty.

background_image¶

Background image of an ActionViews default graphical representation.

background_image is a StringProperty and defaults to ‘atlas://data/images/defaulttheme/action_view’.

overflow_group¶

Widget to be used for the overflow.

overflow_group is an ObjectProperty and defaults to an instance of ActionOverflow.

remove_widget(widget, *args, **kwargs)[source]¶

Remove a widget from the children of this widget.

Parameters:

widget: Widget
Widget to remove from our children list.

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

use_separator¶

Specify whether to use a separator before every ActionGroup or not.

use_separator is a BooleanProperty and defaults to False.

class kivy.uix.actionbar.ContextualActionView(**kwargs)[source]¶

Bases: kivy.uix.actionbar.ActionView

ContextualActionView class, see the module documentation for more information.

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