// Copyright 2014 The Flutter Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Template: dev/snippets/config/templates/freeform.tmpl // // Comment lines marked with "▼▼▼" and "▲▲▲" are used for authoring // of samples, and may be ignored if you are just exploring the sample. // Flutter code sample for FlexibleSpaceBar // //*************************************************************************** //* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) // This sample application demonstrates the different features of the // [FlexibleSpaceBar] when used in a [SliverAppBar]. This app bar is configured // to stretch into the overscroll space, and uses the // [FlexibleSpaceBar.stretchModes] to apply `fadeTitle`, `blurBackground` and // `zoomBackground`. The app bar also makes use of [CollapseMode.parallax] by // default. //* ▲▲▲▲▲▲▲▲ description ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) //*************************************************************************** //**************************************************************************** //* ▼▼▼▼▼▼▼▼ code-imports ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) import 'package:flutter/material.dart'; //* ▲▲▲▲▲▲▲▲ code-imports ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) //**************************************************************************** //******************************************************************** //* ▼▼▼▼▼▼▼▼ code ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) void main() => runApp(const MaterialApp(home: MyApp())); class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return Scaffold( body: CustomScrollView( physics: const BouncingScrollPhysics( parent: AlwaysScrollableScrollPhysics()), slivers: <Widget>[ SliverAppBar( stretch: true, onStretchTrigger: () { // Function callback for stretch return Future<void>.value(); }, expandedHeight: 300.0, flexibleSpace: FlexibleSpaceBar( stretchModes: const <StretchMode>[ StretchMode.zoomBackground, StretchMode.blurBackground, StretchMode.fadeTitle, ], centerTitle: true, title: const Text('Flight Report'), background: Stack( fit: StackFit.expand, children: <Widget>[ Image.network( 'https://flutter.github.io/assets-for-api-docs/assets/widgets/owl-2.jpg', fit: BoxFit.cover, ), const DecoratedBox( decoration: BoxDecoration( gradient: LinearGradient( begin: Alignment(0.0, 0.5), end: Alignment.center, colors: <Color>[ Color(0x60000000), Color(0x00000000), ], ), ), ), ], ), ), ), SliverList( delegate: SliverChildListDelegate( const <Widget>[ ListTile( leading: Icon(Icons.wb_sunny), title: Text('Sunday'), subtitle: Text('sunny, h: 80, l: 65'), ), ListTile( leading: Icon(Icons.wb_sunny), title: Text('Monday'), subtitle: Text('sunny, h: 80, l: 65'), ), // ListTiles++ ], ), ), ], ), ); } } //* ▲▲▲▲▲▲▲▲ code ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) //********************************************************************