82 lines
2.1 KiB
Dart
82 lines
2.1 KiB
Dart
import 'package:flutter/material.dart';
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/// A reusable loading dialog component with a spinner and message.
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///
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/// Use the static [show] method to display the dialog and [hide] to dismiss it.
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///
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/// Example:
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/// ```dart
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/// // Show loading dialog
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/// LoadingDialog.show(context, message: 'Loading...');
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///
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/// // Perform async operation
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/// await someAsyncOperation();
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///
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/// // Hide loading dialog
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/// LoadingDialog.hide(context);
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/// ```
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class LoadingDialog extends StatelessWidget {
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final String message;
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const LoadingDialog({
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super.key,
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required this.message,
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});
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/// Shows a loading dialog with the specified [message].
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///
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/// The dialog is non-dismissible by tapping outside.
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/// Use [hide] to dismiss the dialog when the operation completes.
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static Future<void> show(
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BuildContext context, {
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required String message,
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}) {
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return showDialog<void>(
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context: context,
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barrierDismissible: false,
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builder: (BuildContext dialogContext) {
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return LoadingDialog(message: message);
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},
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);
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}
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/// Hides the currently displayed loading dialog.
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///
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/// Should be called after showing a dialog with [show].
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static void hide(BuildContext context) {
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Navigator.of(context).pop();
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}
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@override
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Widget build(BuildContext context) {
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final colorScheme = Theme.of(context).colorScheme;
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final textTheme = Theme.of(context).textTheme;
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return Center(
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child: Card(
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elevation: 4,
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color: colorScheme.surface,
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child: Padding(
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padding: const EdgeInsets.all(24.0),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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CircularProgressIndicator(
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color: colorScheme.primary,
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),
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const SizedBox(height: 16),
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Text(
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message,
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style: textTheme.bodyMedium?.copyWith(
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color: colorScheme.onSurface,
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),
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textAlign: TextAlign.center,
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),
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],
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),
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),
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),
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);
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}
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}
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