loadingBuilder property
Optional builder for the loading overlay rendered on top of the hosted
payment-method-management WebView while the page is loading. When
null, the widget falls back to a Material CircularProgressIndicator
inside a themed background container (the React Native Crossmint SDK
parity default).
Headless consumers that want to avoid pulling a Material spinner into
their widget tree can supply their own builder here — e.g. a
CupertinoActivityIndicator, a custom skeleton, or
const SizedBox.shrink() to disable the overlay entirely.
Implementation
final CrossmintPaymentMethodManagementLoadingBuilder? loadingBuilder;