Developers can specify that a rich notification consist of one or both types of RN templates:
Required: Controls a brief introduction, highlights, and primary action of the rich notification
Optional: Controls more rich notification content
You can choose from five primary templates and two secondary templates. For each rich notification, primary and secondary templates can be mixed and matched. Most template fields are optional. You have the flexibility to choose which fields to populate and which to leave empty.
The text, graphics, and layout of the RN Notification Screen depend on the primary and secondary templates. The layout of the initial unscrolled views of the screens depend on the primary template. For header primary templates, the views also depend on whether the header background is a solid color or an image.
Figure: RN Screens (Initial Unscrolled Views on a Samsung Gear S Device)
The timestamp, primary action button, and More Options buttons are managed by the RN Manager.
The timestamp and More Options UI buttons cannot be controlled by the developer. However, the primary action UI button is only displayed when the rich notification specifies a primary action.
The layout of the entire RN Notification Screen depends on the primary and secondary templates, and the primary action.