1、rn项目，通过
npm insatall mobx --save
npm insatall mobx-react --save
安装mobx后，会报装饰器的错误，通过
npm install babel-plugin-transform-decorators-legacy --save-dev
npm install @babel/plugin-proposal-decorators --save-dev
并在package.json中添加：
"babel": {
"plugins":[
["@babel/plugin-proposal-decorators", {"legacy":true}],
["@babel/plugin-proposal-class-properties", {"loose":true}]
]
}
重新运行项目，可以正常运行了。以下为package.json中的代码：
{
"name": "name",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"test": "jest"
},
"dependencies": {
"mobx": "^5.9.4",
"mobx-react": "^5.4.3",
"react": "16.8.3",
"react-native": "0.59.3",
"react-native-gesture-handler": "^1.1.0",
"react-navigation": "^3.6.0"
},
"devDependencies": {
"@babel/core": "^7.4.0",
"@babel/plugin-proposal-decorators": "^7.4.0",
"@babel/runtime": "^7.4.2",
"babel-jest": "^24.6.0",
"babel-plugin-transform-decorators-legacy": "^1.3.5",
"jest": "^24.6.0",
"metro-react-native-babel-preset": "^0.53.1",
"react-test-renderer": "16.8.3"
},
"jest": {
"preset": "react-native"
},
"babel": {
"plugins":[
["@babel/plugin-proposal-decorators", {"legacy":true}],
["@babel/plugin-proposal-class-properties", {"loose":true}]
]
}
}
