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.
用 TickerProviderStateMixin 替换 SingleTickerProviderStateMixin；
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)
Trying to embed a platform view but the PrerollContext does not support embedding
<dict> <key>io.flutter.embedded_views_preview</key> <true/> </dict>
Update your browser to view this website correctly. Update my browser now