buildLoadingOverlay abstract method

Widget buildLoadingOverlay({ required Widget child, String? loadingKey = LoadingKey.global, Widget? loadingWidget, })

Wraps a widget with a loading overlay that can be shown/hidden based on loading state.

Parameters:

• child: The widget to wrap with the loading overlay
• loadingKey: Optional key to manage multiple loading states (defaults to global)
• loadingWidget: Optional custom loading indicator widget

The loading state is managed by CommonBloc and can be controlled using:

// Show loading
bloc.showLoading(key: 'customKey');

// Hide loading
bloc.hideLoading(key: 'customKey');

Example usage:

@override
Widget buildPage(BuildContext context) {
  return buildLoadingOverlay(
    child: Scaffold(
      body: YourContent(),
    ),
    loadingKey: 'customKey',
    loadingWidget: CustomLoadingIndicator(),
  );
}

Features:

• Animated opacity transitions
• Support for multiple loading states
• Custom loading indicator support
• Efficient rebuilds using buildWhen

Implementation

Widget buildLoadingOverlay({
  required Widget child,
  String? loadingKey = LoadingKey.global,
  Widget? loadingWidget,
});