Android 9 Development Cookbook - Third Edition

How it works...

Our first step is to create the layout file for the widget. This is a standard layout resource with the restrictions based on the App Widget being a Remote View, as discussed in the recipe introduction. Although our example uses an Analog Clock widget, this is where you'd want to expand the functionality based on your application needs.

The XML resource directory serves to store the AppWidgetProviderInfo, which defines the default widget settings. The configuration settings determine how the widget is displayed when initially browsing the available widgets. We use very basic settings for this recipe, but they can easily be expanded to include additional features, such as a preview image to show a functioning widget and sizing ...