flutter屏幕适配和尺寸约束

1，flutter组件尺寸是dp

https://www.jianshu.com/p/2ba69115f974

2、

https://blog.csdn.net/u011272795/article/details/82795477

3、约束

container默认最大，Row和Colum默认最大

flutter生命周期

https://blog.csdn.net/u011272795/article/details/82695920

flutter加载字符串

flutter学习笔记

https://www.jianshu.com/p/15223325850d

flutter tabbar+tabbarView

https://www.jianshu.com/p/68fa1c725415

tabView不会回收的方法