因Flutter升级，FlutterGo暂停维护，这里导入的项目只能切回到旧版本，这里为了适应新版本的Flutter和Dart，我们新建项目，升级flutter-go，并记录学习。
1、按照之前章节，新建一个flutter_go的Flutter项目，修改build.gradle文件
buildscript { ext.kotlin_version = '1.3.50' repositories { // google() // jcenter() maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' } maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter' } maven { url 'http://maven.aliyun.com/nexus/content/repositories/google' } maven { url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin' } maven { url 'https://storage.googleapis.com/download.flutter.io' } maven { url 'https://maven.fabric.io/public' } } dependencies { classpath 'com.android.tools.build:gradle:3.5.0' classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } allprojects { repositories { // google() // jcenter() maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' } maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter' } maven { url 'http://maven.aliyun.com/nexus/content/repositories/google' } maven { url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin' } maven { url 'https://storage.googleapis.com/download.flutter.io' } maven { url 'https://maven.fabric.io/public' } } } rootProject.buildDir = '../build' subprojects { project.buildDir = "${rootProject.buildDir}/${project.name}" } subprojects { project.evaluationDependsOn(':app') } task clean(type: Delete) { delete rootProject.buildDir }
2、首先修改pubspec.yaml文件,将依赖库dependencies升级到最新版本,将静态文件和widgets添加到配置中。
name: flutter_go description: Flutter GO application. # The following line prevents the package from being accidentally published to # pub.dev using `pub publish`. This is preferred for private packages. publish_to: 'none' # Remove this line if you wish to publish to pub.dev # The following defines the version and build number for your application. # A version number is three numbers separated by dots, like 1.2.43 # followed by an optional build number separated by a +. # Both the version and the builder number may be overridden in flutter # build by specifying --build-name and --build-number, respectively. # In Android, build-name is used as versionName while build-number used as versionCode. # Read more about Android versioning at https://developer.android.com/studio/publish/versioning # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion. # Read more about iOS versioning at # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html version: 1.0.0+1 environment: sdk: ">=2.7.0 <3.0.0" dependencies: flutter: sdk: flutter # The following adds the Cupertino Icons font to your application. # Use with the CupertinoIcons class for iOS style icons. cupertino_icons: ^1.0.0 dev_dependencies: flutter_test: sdk: flutter bloc: ^2.0.0 flutter_bloc: ^2.0.0 dio: ^3.0.10 dio_cookie_manager: 1.0.0 html: ^0.14.0+4 event_bus: ^1.1.0 sqflite: ^1.3.1+2 pull_to_refresh: ^1.6.2 fluro: ^1.7.3 firebase_analytics: ^6.0.2 #firebase_auth: ^0.8.3 #auth firebase_core: ^0.5.0+1 # add dependency for Firebase Core package_info: ^0.4.3 url_launcher: ^5.7.5 cookie_jar: ^1.0.1 path_provider: ^1.6.21 # 本地存储、收藏功能 shared_preferences: ^0.5.12+2 share: ^0.6.5+3 flutter_spinkit: ^4.1.2 zefyr: ^0.12.0 fluttertoast: ^7.1.1 flutter_webview_plugin: ^0.3.11 city_pickers: ^0.2.0 image_picker: ^0.5.0 flutter_jpush: ^0.0.4 markdown: ^3.0.0 # For information on the generic Dart part of this file, see the # following page: https://dart.dev/tools/pub/pubspec # The following section is specific to Flutter. flutter: # The following line ensures that the Material Icons font is # included with your application, so that you can use the icons in # the material Icons class. uses-material-design: true assets: - lib/widgets/elements/Form/Input/TextField/text_field_demo.dart - lib/widgets/elements/Form/CheckBox/Checkbox/demo.dart - lib/widgets/components/Bar/AppBar/demo.dart - lib/widgets/components/Bar/BottomAppBar/demo.dart - lib/widgets/components/Bar/ButtonBar/demo.dart - lib/widgets/components/Bar/FlexibleSpaceBar/demo.dart - lib/widgets/components/Bar/SliverAppBar/demo.dart - lib/widgets/components/Bar/SnackBar/demo.dart - lib/widgets/components/Bar/SnackBarAction/demo.dart - lib/widgets/components/Bar/TabBar/demo.dart - lib/widgets/components/Card/Card/demo.dart - lib/widgets/components/Chip/Chip/demo.dart - lib/widgets/components/Chip/ChipTheme/demo.dart - lib/widgets/components/Chip/ChipThemeData/demo.dart - lib/widgets/components/Chip/ChoiceChip/demo.dart - lib/widgets/components/Chip/FilterChip/demo.dart - lib/widgets/components/Chip/InputChip/demo.dart - lib/widgets/components/Chip/RawChip/demo.dart - lib/widgets/components/Dialog/AboutDialog/demo.dart - lib/widgets/components/Dialog/AlertDialog/demo.dart - lib/widgets/components/Dialog/Dialog/demo.dart - lib/widgets/components/Dialog/SimpleDialog/demo.dart - lib/widgets/components/Grid/GridTile/demo.dart - lib/widgets/components/Grid/GridTileBar/demo.dart - lib/widgets/components/Grid/GridView/demo.dart - lib/widgets/components/Grid/GridPaper/demo.dart - lib/widgets/components/Grid/SliverGrid/demo.dart - lib/widgets/components/List/AnimatedList/demo.dart - lib/widgets/components/List/ListBody/demo.dart - lib/widgets/components/List/ListView/demo.dart - lib/widgets/components/Menu/CheckedPopupMenuItem/demo.dart - lib/widgets/components/Menu/DropdownMenuItem/demo.dart - lib/widgets/components/Menu/PopupMenuButton/demo.dart - lib/widgets/components/Menu/PopupMenuDivider/demo.dart - lib/widgets/components/Navigation/BottomNavigationBar/demo.dart - lib/widgets/components/Navigation/BottomNavigationBarItem/demo.dart - lib/widgets/components/Panel/ExpansionPanel/demo.dart - lib/widgets/components/Panel/ExpansionPanelList/demo.dart - lib/widgets/components/Pick/DayPicker/demo.dart - lib/widgets/components/Pick/MonthPicker/demo.dart - lib/widgets/components/Pick/ShowdatePicker/demo.dart - lib/widgets/components/Pick/YearPicker/demo.dart - lib/widgets/components/Progress/CircularProgressIndicator/demo.dart - lib/widgets/components/Progress/LinearProgressIndicator/demo.dart - lib/widgets/components/Progress/RefreshProgressIndicator/demo.dart - lib/widgets/components/Scaffold/Scaffold/demo.dart - lib/widgets/components/Scaffold/ScaffoldState/demo.dart - lib/widgets/components/Scroll/BoxScrollView/demo.dart - lib/widgets/components/Scroll/CustomScrollView/demo.dart - lib/widgets/components/Scroll/NestedScrollView/demo.dart - lib/widgets/components/Scroll/Scrollable/demo.dart - lib/widgets/components/Scroll/ScrollbarPainter/demo.dart - lib/widgets/components/Scroll/ScrollMetrics/demo.dart - lib/widgets/components/Scroll/ScrollPhysics/demo.dart - lib/widgets/components/Scroll/ScrollView/demo.dart - lib/widgets/components/Tab/Tab/demo.dart - lib/widgets/elements/Form/Button/DropdownButton/demo.dart - lib/widgets/elements/Form/Button/FlatButton/demo.dart - lib/widgets/elements/Form/Button/FloatingActionButton/demo.dart - lib/widgets/elements/Form/Button/IconButton/demo.dart - lib/widgets/elements/Form/Button/OutlineButton/demo.dart - lib/widgets/elements/Form/Button/PopupMenuButton/demo.dart - lib/widgets/elements/Form/Button/RaisedButton/demo.dart - lib/widgets/elements/Form/Button/RawMaterialButton/demo.dart - lib/widgets/elements/Form/CheckBox/Checkbox/demo.dart - lib/widgets/elements/Form/CheckBox/CheckboxListTile/demo.dart - lib/widgets/elements/Form/Radio/Radio/demo.dart - lib/widgets/elements/Form/Radio/RadioListTile/demo.dart - lib/widgets/elements/Form/Slider/Slider/demo.dart - lib/widgets/elements/Form/Slider/SliderTheme/demo.dart - lib/widgets/elements/Form/Slider/SliderThemeData/demo.dart - lib/widgets/elements/Form/Switch/AnimatedSwitcher/demo.dart - lib/widgets/elements/Form/Switch/Switch/demo.dart - lib/widgets/elements/Form/Switch/SwitchListTile/demo.dart - lib/widgets/elements/Frame/Align/Align/demo.dart - lib/widgets/elements/Frame/Box/ConstrainedBox/demo.dart - lib/widgets/elements/Frame/Box/DecoratedBox/demo.dart - lib/widgets/elements/Frame/Box/FittedBox/demo.dart - lib/widgets/elements/Frame/Box/LimitedBox/demo.dart - lib/widgets/elements/Frame/Box/OverflowBox/demo.dart - lib/widgets/elements/Frame/Box/RotatedBox/demo.dart - lib/widgets/elements/Frame/Box/SizeBox/demo.dart - lib/widgets/elements/Frame/Box/SizedOverflowBox/demo.dart - lib/widgets/elements/Form/Text/Text/demo.dart - lib/widgets/elements/Form/Text/RichText/index.dart - lib/widgets/elements/Frame/Box/UnconstrainedBox/demo.dart - lib/widgets/elements/Frame/Expanded/Expanded/expanded_demo.dart - lib/widgets/elements/Frame/Layout/Center/demo.dart - lib/widgets/elements/Frame/Layout/Column/demo.dart - lib/widgets/elements/Frame/Layout/Container/demo.dart - lib/widgets/elements/Frame/Layout/Row/demo.dart - lib/widgets/elements/Frame/Spacing/AnimatedPadding/animatedPadding_demo.dart - lib/widgets/elements/Frame/Spacing/Padding/padding_demo.dart - lib/widgets/elements/Frame/Spacing/SliverPadding/sliverpadding_demo.dart - lib/widgets/elements/Frame/Stack/IndexedStack/demo.dart - lib/widgets/elements/Frame/Stack/Stack/demo.dart - lib/widgets/elements/Frame/Table/Table/table_demo.dart - lib/widgets/elements/Media/Icon/Icon/demo.dart - lib/widgets/elements/Media/Icon/IconData/demo.dart - lib/widgets/elements/Media/Icon/IconTheme/demo.dart - lib/widgets/elements/Media/Icon/IconThemeData/demo.dart - lib/widgets/elements/Media/Icon/ImageIcon/demo.dart - lib/widgets/elements/Media/Image/AssetImage/assetImage_demo.dart - lib/widgets/elements/Media/Image/DecorationImage/decorationImage_demo.dart - lib/widgets/elements/Media/Image/DecorationImagePainter/decoration_image_painter_demo.dart - lib/widgets/elements/Media/Image/ExactAssetImage/exact_asset_image_demo.dart - lib/widgets/elements/Media/Image/FadeInImage/fade_in_image_demo.dart - lib/widgets/elements/Media/Image/FileImage/file_image_demo.dart - lib/widgets/elements/Media/Image/Image/demo.dart - lib/widgets/elements/Media/Image/MemoryImage/memory_image_demo.dart - lib/widgets/elements/Media/Image/NetworkImage/network_image_demo.dart - lib/widgets/elements/Media/Image/paintImage/paint_image_demo.dart - lib/widgets/elements/Media/Image/precacheImage/precache_image_demo.dart - lib/widgets/elements/Media/Image/RawImage/raw_image_demo.dart - lib/widgets/elements/Media/Canvas/Canvas/demo.dart - lib/widgets/elements/Media/Canvas/CircleProgressBarPainter/demo.dart - lib/widgets/elements/Media/Canvas/PainterPath/demo.dart - lib/widgets/elements/Media/Canvas/PainterSketch/demo.dart - lib/widgets/themes/Material/MaterialApp/demo.dart - lib/widgets/themes/Material/MaterialButton/demo.dart - lib/widgets/themes/Material/MaterialColor/demo.dart - lib/widgets/themes/Material/MaterialPageRoute/demo.dart - lib/widgets/themes/Material/MergeableMaterialItem/demo.dart - lib/widgets/themes/Cupertino/CupertinoApp/demo.dart - lib/widgets/themes/Cupertino/CupertinoButton/demo.dart - lib/widgets/themes/Cupertino/CupertinoColors/demo.dart - lib/widgets/themes/Cupertino/CupertinoIcons/demo.dart - lib/widgets/themes/Cupertino/CupertinoNavigationBar/demo.dart - lib/widgets/themes/Cupertino/CupertinoPageRoute/demo.dart - lib/widgets/themes/Cupertino/CupertinoPageScaffold/demo.dart - lib/widgets/themes/Cupertino/CupertinoPicker/demo.dart - lib/widgets/themes/Cupertino/CupertinoPopupSurface/demo.dart - lib/widgets/themes/Cupertino/CupertinoScrollbar/demo.dart - lib/widgets/themes/Cupertino/CupertinoSegmentedControl/demo.dart - lib/widgets/elements/Form/Switch/Switch/demo.dart - lib/widgets/themes/Cupertino/CupertinoSlider/demo.dart - lib/widgets/themes/Cupertino/CupertinoSliverNavigationBar/demo.dart - lib/widgets/themes/Cupertino/CupertinoSwitch/demo.dart - lib/widgets/themes/Cupertino/CupertinoTabBar/demo.dart - lib/widgets/themes/Cupertino/CupertinoTabScaffold/demo.dart - lib/widgets/themes/Cupertino/CupertinoTabView/demo.dart - lib/widgets/themes/Cupertino/CupertinoTimerPicker/demo.dart - lib/page_demo_package/.demo.json - lib/standard_pages/.pages.json - assets/app.db - assets/images/ - assets/fonts/ fonts: - family: FlamanteRoma fonts: - asset: assets/fonts/Flamante-Roma-Medium.ttf - asset: assets/fonts/Flamante-Roma-MediumItalic.ttf - family: LatoBold fonts: - asset: assets/fonts/Lato-Bold.ttf # To add assets to your application, add an assets section, like this: # assets: # - images/a_dot_burr.jpeg # - images/a_dot_ham.jpeg # An image asset can refer to one or more resolution-specific "variants", see # https://flutter.dev/assets-and-images/#resolution-aware. # For details regarding adding assets from package dependencies, see # https://flutter.dev/assets-and-images/#from-packages # To add custom fonts to your application, add a fonts section here, # in this "flutter" section. Each entry in this list should have a # "family" key with the font family name, and a "fonts" key with a # list giving the asset and other descriptors for the font. For # example: # fonts: # - family: Schyler # fonts: # - asset: fonts/Schyler-Regular.ttf # - asset: fonts/Schyler-Italic.ttf # style: italic # - family: Trajan Pro # fonts: # - asset: fonts/TrajanPro.ttf # - asset: fonts/TrajanPro_Bold.ttf # weight: 700 # # For details regarding fonts from package dependencies, # see https://flutter.dev/custom-fonts/#from-packages
3、将下载下来的FlutterGo项目中main.dart代码复制到我们新建的main.dart中，点击Android Studio右上角的Get Dependencies，下载依赖包，下载完成之后，代码中有很多报错，我们一步一步修改，先将不需要的代码注释掉，只保留首页需要用到的代码。
4、复制FlutterGo项目中lib/api，lib/blocs，lib/components，lib/event，lib/model，lib/page_demo_package，lib/resources，lib/routers，lib/standard_pages，lib/utils，lib/widgets文件夹下所有代码到新建的项目中，将FlutterGo项目中assets文件夹复制到新建项目的根目录下。
5、修改main.dart,application.dart,routers.dart文件中的Router为FluroRouter，因fluro最新版本升级，Router命名有修改。
6、修改net_utils.dart文件，引入import
'package:dio_cookie_manager/dio_cookie_manager.dart';
7、修改search_input.dart文件，将isInitialRoute: false，修改为arguments: {'isInitialRoute': false}
8、注释掉报错的导入，暂时只保留views里面首页相关页面。
9、修改flutter_go\android\app\src\main\AndroidManifest.xml文件，添加
<uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.MODE_WORLD_READABLE" /> <uses-permission android:name="android.permission.MODE_WORLD_WRITEABLE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
10、修改flutter_go\android\app\build.gradle文件,将以下代码复制到defaultConfig标签里。
manifestPlaceholders = [ JPUSH_PKGNAME : "com.alibaba.fluttergo", JPUSH_APPKEY : "62eb07d227d1f11dd7fa6239", //JPush上注册的包名对应的appkey. JPUSH_CHANNEL : "developer-default", ]
11、在lib下新建views目录，将FlutterGo项目中login_page,first_page目录和home.dart文件复制进去，然后修改login_page.dart中的timeInSecForIos为timeInSecForIosWeb。
12、修改search_page.dart文件中的suggestion.dispatch为suggestion.add
13、将FlutterGo中的welcome_page和fourth_page目录复制到我们新建的项目中。修改fourth_page.dart文件中的import 'package:flutter/material.dart'; 改为import 'package:flutter/material.dart' hide Page;
14、将FlutterGo中的lib/views下的widget_page，collection_page,issuse_message_page,standard_demo_page目录复制到我们新建的项目中。修改issuse_message_page.dart文件，将timeInSecForIos改为timeInSecForIosWeb，将ZefyrToolbarTheme改为ToolbarTheme
15、将FlutterGo下的lib/widgets目录复制到我们新建的项目中。
注意事项：
1、将classpath 'io.fabric.tools:gradle:1.26.1'改为classpath 'io.fabric.tools:gradle:1.25.4'
2、A problem occurred configuring project ':city_pickers'.
3、将Router改为FluroRouter
4、欢迎页不展示，以及图标不展示，打开注释掉的welcome page
5、如果jar包不能下载，将maven { url 'https://storage.googleapis.com/download.flutter.io' }放到maven { url 'https://maven.fabric.io/public' }上面
