wendux / flutter_in_action_source_code

《Flutter实战》随书源码

It's wendux(杜文).

About me:

• 👨‍💻 Front-end development expert. Focus on Web、Flutter and other Cross-platform techs.
• 👯 Creator of Flutter China org and maintainer of China Flutter User Group (CFUG).
• 🌎 Creator of dio.
• 📚 Author of 《Flutter实战》.
• 💻 Work in Bytedance since 2018. Baidu in 2014, XYF in 2017.

Contact me:

• ✉️ Personal: [email protected]、[email protected].
• 🌐️ Twitter：https://twitter.com/duwen65952787.

flutter_in_action_source_code's Issues

本地语言bug

iOS：1. 设置本地语言为 中文简体，系统回掉 取到的是 美国英文；
2. （系统中文）先设置app为中文环境，重启app，然后选auto，app显示中文，在重启app，又会显示为英文；

Android：1. 系统设置为中文，app中取到的是 zh_Hans_CN，设置auto的话还是显示英文；

localeResolutionCallback:
                (Locale _locale, Iterable<Locale> supportedLocales) {
              if (localeModel.getLocale() != null) {
                //如果已经选定语言，则不跟随系统
                return localeModel.getLocale();
              } else {
                Locale locale;
                //APP语言跟随系统语言，如果系统语言不是中文简体或美国英语，
                //则默认使用美国英语
                print(_locale);
                print(supportedLocales.toList()[0]);
                print(supportedLocales.toList()[1]);
                if (supportedLocales.contains(_locale)) {
                  locale = _locale;
                } else {
                  locale = Locale('en', 'US');
                }
                return locale;
              }
            }

请问flutter sdk版本是多少？

请问作者是基于sdk哪个版本开发的？

报错，Error parsing request.Invalid argument (requestedUri): handlerPath "null" and url "null" must combine

登录接口返回成功之后报错：
ERROR - 2021-06-09 17:09:41.856138
Error parsing request.
Invalid argument (requestedUri): handlerPath "null" and url "null" must combine to equal requestedUri path "/C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart".: Instance of '_Uri'

项目运行报错

flutter sdk 1.20.1

退出登陆，程序崩溃

The following NoSuchMethodError was thrown during performLayout():
The getter 'key' was called on null.
Receiver: null
Tried calling: key

空安全问题？

flutter_in_action_source_code/github_client_app/lib/states/profile_change_notifier.dart

Line 14 in e5e54b3

User get user => _profile.user;

大佬您好，关于此处: User get user => _profile.user;
由于_profile.user 是 User? 类型的， 所以在get的返回类型中改为了 User?
但当改好后User? get user => _profile.user; 又出现问题提示：The return type of getter 'user' is 'User?' which isn't a subtype of the type 'User' of its setter 'user'.

请问这种该如何解决呢？ 谢谢！

去掉Dio调试代理，真实账号可以登录，但是请求repo list 报401

请求url：https://api.github.com/user/repos?page=1&page_size=20
报错：DioError [DioErrorType.response]: Http status error [401]

一份能正常运行的实战源码

首先感谢大佬无私的code输出，基于原有code基础上调试，能正常运行的代码

源码地址

实践篇内的cached_network_image这个包版本太低了，要改成2.0.0版本的

cached_network_image: ^2.0.0-rc

无法登录 404

去掉dio初始化的代理，返回404

github_client_app 在判断用户未登录，如何直接跳转到login页面?

在home_page.dart中，我想在判断用户未登录后，直接跳转到login路由，修改代码如下：
//注释掉原代码中的return，添加 Navigator.of(context).pushNamed("login");
if (!userModel.isLogin) {
Navigator.of(context).pushNamed("login");
// return Center(
// child: RaisedButton(
// child: Text(GmLocalizations.of(context).login),
// onPressed: () => Navigator.of(context).pushNamed("login"),
// ),
// );
}
但由于body部分必须要return一个widget，所以上述代码报错。
请问如果要实现上述意图，代码如何操作，谢谢？

登录不了

是用真实账号登录么 用自己的登录不了啊

登录报错

报错位置
lib/common/git_api.dart
报错方法

// 登录接口，登录成功后返回用户信息
Future login(String login, String pwd) async {

}

打印的日志

login e:DioError [DioErrorType.RESPONSE]: Http status error [404]

because github_client_app depends on intl ^0.16.0, version solving failed.

运行起来就是白屏。什么也不显示，也不报错。

建议将 Cross Axis 翻译为“副轴”或者“交叉轴”

第四章线性布局中将cross axis翻译为纵轴略有不妥，因为纵轴名称暗示了方向性。

参考MDN, 翻译为交叉轴较好。而我本人认为翻译为副轴更符合中文的表达习惯。

实例篇"github_client_app"，运行后登录不了，报错

flutter: DioError [DioErrorType.DEFAULT]: SocketException: OS Error: Operation timed out, errno = 60, address = 10.1.10.250, port = 54615

github_client_app 安卓跟iOS都运行不起来，新手不懂怎么解决，有人可以运行的吗？

获取个人仓库列表的接口变了

https://api.github.com/users/solomonxie/repos?page=2&per_page=3

实例用什么账号密码能够登录

实例用什么账号密码能够登录

代码缺少实现 ChangeNotifier 类

看7.3 跨组件状态共享（Provider）的时候发现跑不了，来跑代码，拉下来之后发现项目里面好像缺少实现 ChangeNotifier 类

Undefined class 'ChangeNotifier'.
Try changing the name to the name of an existing class, or creating a class with the name 'ChangeNotifier'.

基于这个commit的最新代码 commit

实战报错

Configure project :path_provider

Project evaluation failed including an error in afterEvaluate {}. Run with --stacktrace for details of the afterEvaluate {} error.

FAILURE: Build failed with an exception.

• What went wrong:
  A problem occurred configuring project ':path_provider'.

Could not resolve all artifacts for configuration ':path_provider:classpath'.
Could not download guava.jar (com.google.guava:guava:26.0-jre)
> Could not get resource 'https://jcenter.bintray.com/com/google/guava/guava/26.0-jre/guava-26.0-jre.jar'.
> Read timed out
Could not download kotlin-reflect.jar (org.jetbrains.kotlin:kotlin-reflect:1.3.11)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-reflect/1.3.11/kotlin-reflect-1.3.11.jar'.
> Read timed out
Could not download kotlin-stdlib.jar (org.jetbrains.kotlin:kotlin-stdlib:1.3.11)
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib/1.3.11/kotlin-stdlib-1.3.11.jar'.
> Read timed out

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 47s
Command: D:\worker\android\github_client_app\android\gradlew.bat app:properties

Finished with error: Please review your Gradle project setup in the android/ folder.