Flutter踩坑记录

以下为学习Flutter遇到的问题，一集解决方案，留作笔记，用以后期学习过程中解决。

Flutter

报错信息：

A SingleTickerProviderStateMixin can only be used as a TickerProvider once.
If a State is used for multiple AnimationController objects, or if it is passed to other objects and those objects might use it more than one time in total, then instead of mixing in a SingleTickerProviderStateMixin, use a regular TickerProviderStateMixin.

解决方案：
用 TickerProviderStateMixin 替换 SingleTickerProviderStateMixin；

iOS

报错信息：

dyld: Library not loaded: @rpath/App.framework/App
  Referenced from: /Users/loseboy/Library/Developer/CoreSimulator/Devices/37368366-A391-4D52-B11D-52B70E66849E/data/Containers/Bundle/Application/ED19754F-C00E-413F-B0E7-1DA7BD408DC7/Runner.app/Runner
  Reason: image not found
(lldb)

解决方案：
缺啥加啥

解决方案来自 https://www.jianshu.com/p/dd08131c9115

报错信息：

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

解决方案:
在 [project_name]/ios/Runner/Info.plist文件中加入以下代码

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

解决方案来自 https://pub.flutter-io.cn/packages/webview_flutter
github仓库 https://github.com/flutter/plugins/tree/master/packages/webview_flutter
官方所有插件仓库（推荐） https://github.com/flutter/plugins