react-native 库

1.渐变实现
react-native-linear-gradient
https://github.com/react-native-community/react-native-linear-gradient

2.轮播图
react-native-swiper
https://github.com/leecade/react-native-swiper

3.阴影（增加对android的支持）
react-native-shadow
react-native-svg
https://github.com/879479119/react-native-shadow
https://github.com/react-native-community/react-native-svg