gf5353/flutter_app

flutter练习项目

A new Flutter application.

常见问题

1.flutter pub get慢

一直处在

Running "flutter packages get" in project_name...

具体操作

Linux 或 Mac

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

Windows 新增两个环境变量即可

PUB_HOSTED_URL ===== https://pub.flutter-io.cn
FLUTTER_STORAGE_BASE_URL ===== https://storage.flutter-io.cn

执行一下 flutter doctor命令

http://jimbray.xyz/post/using-flutter-in-china/

2.Json解析错误 Unhandled Exception: FormatException: Unexpected character (at character 2)

主要原因dio网络请求的时候返回的数据格式是非json格式，需要修改

responseType: ResponseType.plain

3.Webview 在ios平台下无法显示（引用原生view无法显示）

报错信息

Trying to embed a platform view but the PrerollContext does not support embedding

解决方法：增加info.plist文件中的健值对

<key>io.flutter.embedded_views_preview</key>
<true/>
<key>NSAppTransportSecurity</key>
<dict>
   <key>NSAllowsArbitraryLoads</key>
   <true/>
</dict>

4.创建插件制定开发语言

flutter create -i objc -a java flutter_android_new

https://dart.dev/tools/pub/dependencies#sdk