// Copyright 2015 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; class _ContactCategory extends StatelessWidget { const _ContactCategory({ Key key, this.icon, this.children }) : super(key: key); final IconData icon; final List<Widget> children; @override Widget build(BuildContext context) { final ThemeData themeData = Theme.of(context); return new Container( padding: const EdgeInsets.symmetric(vertical: 16.0), decoration: new BoxDecoration( border: new Border(bottom: new BorderSide(color: themeData.dividerColor)) ), child: new DefaultTextStyle( style: Theme.of(context).textTheme.subhead, child: new SafeArea( top: false, bottom: false, child: new Row( crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[ new Container( padding: const EdgeInsets.symmetric(vertical: 24.0), width: 72.0, child: new Icon(icon, color: themeData.primaryColor) ), new Expanded(child: new Column(children: children)) ], ), ), ), ); } } class _ContactItem extends StatelessWidget { _ContactItem({ Key key, this.icon, this.lines, this.tooltip, this.onPressed }) : assert(lines.length > 1), super(key: key); final IconData icon; final List<String> lines; final String tooltip; final VoidCallback onPressed; @override Widget build(BuildContext context) { final ThemeData themeData = Theme.of(context); final List<Widget> columnChildren = lines.sublist(0, lines.length - 1).map((String line) => new Text(line)).toList(); columnChildren.add(new Text(lines.last, style: themeData.textTheme.caption)); final List<Widget> rowChildren = <Widget>[ new Expanded( child: new Column( crossAxisAlignment: CrossAxisAlignment.start, children: columnChildren ) ) ]; if (icon != null) { rowChildren.add(new SizedBox( width: 72.0, child: new IconButton( icon: new Icon(icon), color: themeData.primaryColor, onPressed: onPressed ) )); } return new MergeSemantics( child: new Padding( padding: const EdgeInsets.symmetric(vertical: 16.0), child: new Row( mainAxisAlignment: MainAxisAlignment.spaceBetween, children: rowChildren ) ), ); } } class ContactsDemo extends StatefulWidget { static const String routeName = '/contacts'; @override ContactsDemoState createState() => new ContactsDemoState(); } enum AppBarBehavior { normal, pinned, floating, snapping } class ContactsDemoState extends State<ContactsDemo> { static final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>(); final double _appBarHeight = 256.0; AppBarBehavior _appBarBehavior = AppBarBehavior.pinned; @override Widget build(BuildContext context) { return new Theme( data: new ThemeData( brightness: Brightness.light, primarySwatch: Colors.indigo, platform: Theme.of(context).platform, ), child: new Scaffold( key: _scaffoldKey, body: new CustomScrollView( slivers: <Widget>[ new SliverAppBar( expandedHeight: _appBarHeight, pinned: _appBarBehavior == AppBarBehavior.pinned, floating: _appBarBehavior == AppBarBehavior.floating || _appBarBehavior == AppBarBehavior.snapping, snap: _appBarBehavior == AppBarBehavior.snapping, actions: <Widget>[ new IconButton( icon: const Icon(Icons.create), tooltip: 'Edit', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text("Editing isn't supported in this screen.") )); }, ), new PopupMenuButton<AppBarBehavior>( onSelected: (AppBarBehavior value) { setState(() { _appBarBehavior = value; }); }, itemBuilder: (BuildContext context) => <PopupMenuItem<AppBarBehavior>>[ const PopupMenuItem<AppBarBehavior>( value: AppBarBehavior.normal, child: Text('App bar scrolls away') ), const PopupMenuItem<AppBarBehavior>( value: AppBarBehavior.pinned, child: Text('App bar stays put') ), const PopupMenuItem<AppBarBehavior>( value: AppBarBehavior.floating, child: Text('App bar floats') ), const PopupMenuItem<AppBarBehavior>( value: AppBarBehavior.snapping, child: Text('App bar snaps') ), ], ), ], flexibleSpace: new FlexibleSpaceBar( title: const Text('Ali Connors'), background: new Stack( fit: StackFit.expand, children: <Widget>[ new Image.asset( 'people/ali_landscape.png', package: 'flutter_gallery_assets', fit: BoxFit.cover, height: _appBarHeight, ), // This gradient ensures that the toolbar icons are distinct // against the background image. const DecoratedBox( decoration: BoxDecoration( gradient: LinearGradient( begin: Alignment(0.0, -1.0), end: Alignment(0.0, -0.4), colors: <Color>[Color(0x60000000), Color(0x00000000)], ), ), ), ], ), ), ), new SliverList( delegate: new SliverChildListDelegate(<Widget>[ new AnnotatedRegion<SystemUiOverlayStyle>( value: SystemUiOverlayStyle.dark, child: new _ContactCategory( icon: Icons.call, children: <Widget>[ new _ContactItem( icon: Icons.message, tooltip: 'Send message', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text('Pretend that this opened your SMS application.') )); }, lines: const <String>[ '(650) 555-1234', 'Mobile', ], ), new _ContactItem( icon: Icons.message, tooltip: 'Send message', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text('A messaging app appears.') )); }, lines: const <String>[ '(323) 555-6789', 'Work', ], ), new _ContactItem( icon: Icons.message, tooltip: 'Send message', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text('Imagine if you will, a messaging application.') )); }, lines: const <String>[ '(650) 555-6789', 'Home', ], ), ], ), ), new _ContactCategory( icon: Icons.contact_mail, children: <Widget>[ new _ContactItem( icon: Icons.email, tooltip: 'Send personal e-mail', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text('Here, your e-mail application would open.') )); }, lines: const <String>[ 'ali_connors@example.com', 'Personal', ], ), new _ContactItem( icon: Icons.email, tooltip: 'Send work e-mail', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text('Summon your favorite e-mail application here.') )); }, lines: const <String>[ 'aliconnors@example.com', 'Work', ], ), ], ), new _ContactCategory( icon: Icons.location_on, children: <Widget>[ new _ContactItem( icon: Icons.map, tooltip: 'Open map', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text('This would show a map of San Francisco.') )); }, lines: const <String>[ '2000 Main Street', 'San Francisco, CA', 'Home', ], ), new _ContactItem( icon: Icons.map, tooltip: 'Open map', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text('This would show a map of Mountain View.') )); }, lines: const <String>[ '1600 Amphitheater Parkway', 'Mountain View, CA', 'Work', ], ), new _ContactItem( icon: Icons.map, tooltip: 'Open map', onPressed: () { _scaffoldKey.currentState.showSnackBar(const SnackBar( content: Text('This would also show a map, if this was not a demo.') )); }, lines: const <String>[ '126 Severyns Ave', 'Mountain View, CA', 'Jet Travel', ], ), ], ), new _ContactCategory( icon: Icons.today, children: <Widget>[ new _ContactItem( lines: const <String>[ 'Birthday', 'January 9th, 1989', ], ), new _ContactItem( lines: const <String>[ 'Wedding anniversary', 'June 21st, 2014', ], ), new _ContactItem( lines: const <String>[ 'First day in office', 'January 20th, 2015', ], ), new _ContactItem( lines: const <String>[ 'Last day in office', 'August 9th, 2018', ], ), ], ), ]), ), ], ), ), ); } }