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780c0f1dbb
Convert 20 more single-file apps to the validated pattern: lib/main.dart holds only the runApp + MaterialApp bootstrap, while a new lib/example.dart holds the full screen (Scaffold, AppBar) and the focused example code. Apps: enabling_splash_screen, getx_counter_app, image_from_network, infinite_list, load_local_image, load_local_json, persist_key_value, push_notifications, sliver_app_bar_example, stateless_widgets, tic_tac_toe, tip_calculator, using_alert_dialog, using_edittext, using_expansionpanel, using_http_get, using_interactiveviewer, using_snackbar, using_stepper, using_theme
39 lines
1.1 KiB
Dart
39 lines
1.1 KiB
Dart
import 'package:flutter/material.dart';
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// Example: a collapsing SliverAppBar over a scrolling list of items.
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class Example extends StatelessWidget {
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const Example({super.key});
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// This widget is the root of your application.
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: NestedScrollView(
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floatHeaderSlivers: true,
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headerSliverBuilder: (context, innerBoxIsScrolled) => [
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const SliverAppBar(
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expandedHeight: 240,
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flexibleSpace: FlexibleSpaceBar(
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title: Text('Sliver App Bar Demo'),
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background: Image(
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image: AssetImage('assets/sample.jpg'),
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fit: BoxFit.cover,
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),
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),
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floating: true,
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),
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],
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body: ListView.separated(
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padding: const EdgeInsets.all(12),
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itemCount: 30,
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itemBuilder: (context, index) => ListTile(
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title: Text('Item $index'),
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),
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separatorBuilder: (context, index) => const SizedBox(
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height: 10,
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)),
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),
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);
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}
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}
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