| Button.ActionListener | Callback interface for getAction(String, ButtonContext, ActionListener) which
will call onAction(AppAction) if an action is available given the
provided Button ID and ButtonContext. |
| Button.DeepLinkListener | Callback interface for checkForDeepLink(Context, DeepLinkListener) which
will invoke onDeepLink(Intent) with a VIEW intent for a deferred deep link if such
is found. |
| ButtonDropin.Listener |
| Button | Main entry point to the Button SDK. |
| ButtonContext | This is the main class holding context information for the current screen of your application. |
| ButtonDropin | This is the only UI class that you will have to drop into your layout XML to display a Button. |
| LineItem | Class representing an order's individual line items. |