常用组件-渐变组件

RN常用组件：

https://www.jianshu.com/p/5840ea816464

react-native 实现渐变色背景

https://blog.csdn.net/zdluoa/article/details/79776447

RN-react-native-linear-gradient颜色渐变

https://www.jianshu.com/p/757dfeae5162