Kingkor Roy Tirtho
60 lines
1.5 KiB
Dart
60 lines
1.5 KiB
Dart
import 'dart:math';
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import 'package:fl_query/fl_query.dart';
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import 'package:flutter/material.dart';
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void main() async {
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WidgetsFlutterBinding.ensureInitialized();
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await QueryClient.initialize();
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runApp(
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QueryClientProvider(
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child: const MainApp(),
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),
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);
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}
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class MainApp extends StatelessWidget {
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const MainApp({super.key});
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@override
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Widget build(BuildContext context) {
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final value = Random().nextInt(200000);
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return MaterialApp(
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home: Scaffold(
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body: QueryBuilder<String, dynamic, String>(
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const ValueKey('hello'),
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() {
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return Future.delayed(
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const Duration(seconds: 6), () => 'Hello World! $value');
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},
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initial: 'Hello',
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jsonConfig: JsonConfig(
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fromJson: (json) => json['data'],
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toJson: (data) => {'data': data},
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),
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onData: (value) {
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print('onData: $value');
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},
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onError: (error) {
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print('onError: $error');
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},
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builder: (context, query) {
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if (query.isLoading) {
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return const Center(
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child: CircularProgressIndicator(),
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);
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} else if (query.hasError) {
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return Center(
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child: Text(query.error.toString()),
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);
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}
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return Center(
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child: Text(query.data),
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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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