Pickerview Packages

```sh npm install @eightfeet/picker ``` > 也可以通过```<scrip src="yourpath/picker.js"></scrip>```来安装Picker，window下会创建一个属性名为\_\_\_Picker\_\_\_的构造方法；

react-native ActionSheet for Android and iOS

A lightweight plugin and pure JavaScript React-Native component for custom picker that provides the same UI for both Android and iOS.