belongs to Maven artifact com.android.support:leanback-v17:28.0.0-alpha1
GuidedActionsStylist is used within a
to supply the right-side panel where users can take actions. It consists of a container for the
list of actions, and a stationary selector view that indicates visually the location of focus.
GuidedActionsStylist has two different layouts: default is for normal actions including text,
radio, checkbox, DatePicker, etc, the other when
setAsButtonActions() is called is
recommended for button actions such as "yes", "no".
Many aspects of the base GuidedActionsStylist can be customized through theming; see the theme attributes below. Note that these attributes are not set on individual elements in layout XML, but instead would be set in a custom theme. See Styles and Themes for more information.
If these hooks are insufficient, this class may also be subclassed. Subclasses may wish to
onProvideLayoutId() method to change the layout used to display the
list container and selector; override
getItemViewType(GuidedAction) method to change the layout used to display each action.
To support a "click to activate" view similar to DatePicker, app needs:
getItemViewType(GuidedAction), provides a layout id for the action.
onBindActivatorView(ViewHolder, GuidedAction)to populate values into View.
onUpdateActivatorView(ViewHolder, GuidedAction)to update action.
Note: If an alternate list layout is provided, the following view IDs must be supplied:
These view IDs must be present in order for the stylist to function. The list ID must correspond
VerticalGridView or subclass.
If an alternate item layout is provided, the following view IDs should be used to refer to base elements:
These view IDs are allowed to be missing, in which case the corresponding views in
GuidedActionsStylist.ViewHolder will be null.