以前引用方式，在0.26+版本将会报错
import React,{ Component,View } from 'react-native';
现在
import React,{ Component } from 'react';
import { View } from 'react-native';
英文原文如下
-- React Package Changes --
In React 0.14 for Web we started splitting up the React package into two packages react and react-dom. Now I'd like to make this consistent in React Native. The new package structure would be...
"react":
Children
Component
PropTypes
createElement
cloneElement
isValidElement
createClass
createFactory
createMixin
"react-native":
hasReactNativeInitialized
findNodeHandle
render
unmountComponentAtNode
unmountComponentAtNodeAndRemoveContainer
unstable_batchedUpdates
View
Text
ListView
...
and all the other native components.
So for a lot of components you actually have to import both packages.
var React = require('react');
var { View } = require('react-native');
var Foo = React.createClass({
render() { return <View />; }
});
However,for components that doesn't kNow anything about their rendering environment just need the react package as a dependency.Currently a lot of these are accessible from both packages but we'd start issuing warnings if you use the wrong one.This would be a little spammy so ideally we would have a simple codemod script that you can run on your imports to clean them up.E.g. something that translates existing patterns like:var React = require('react-native');var { View } = React;into:var React = require('react');var { View } = require('react-native');If anyone wants to write and share that script with the community,that would be highly appreciated. We can start promoting it right Now before we deprecate it.
