Kingkor Roy Tirtho
47 lines
1.2 KiB
Dart
47 lines
1.2 KiB
Dart
import 'package:fl_query/fl_query.dart';
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import 'package:flutter/material.dart';
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final lazyQueryJob = QueryJob<String, String>(
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queryKey: "lazy-query",
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enabled: false,
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task: (
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queryKey,
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data,
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) {
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return Future.delayed(const Duration(milliseconds: 500),
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() => "Result: key=$queryKey value=$data");
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},
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);
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class LazyQueryExample extends StatelessWidget {
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const LazyQueryExample({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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"# Lazy Query Example",
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style: Theme.of(context).textTheme.headline5,
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),
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QueryBuilder<String, String>(
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job: lazyQueryJob,
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externalData: "Love",
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builder: (context, query) {
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return Row(
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children: [
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Text("Current Data: ${query.data ?? "Loading"}"),
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ElevatedButton(
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child: const Text("Refetch Query"),
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onPressed: () => query.refetch(),
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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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}
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