Usage example for scenic::BaseView class, which simplifies the creation of components that can act as both parents and children in the Scenic view tree.
Includes a simple implementation of fuchsia.ui.policy.Presenter2 which it uses instead of connecting to root_presenter; the topology is analogous to how Peridot's device_runner connects the device_shell to root_presenter. Note: this requires connecting directly to Scenic, and will not work if there is already a Compositor attached to the default display.
Usage:
Using the root presenter: run hello_base_view --use_root_presenter Using the example presenter: run hello_base_view --use_example_presenter Using the view provider service, set_root_view hello_base_view (not supported yet)
If using example_presenter, it will be necessary to kill any instances of scenic and root_presenter (use killall).