react native 添加mobx

"babel-plugin-transform-decorators-legacy": "^1.3.5",

"babel-preset-react-native-stage-0": "^1.0.1",

"mobx": "^3.2.2",

"mobx-react": "^4.2.2",

.babelrc 文件 ：

{

"presets": ["react-native"],

"plugins": ["transform-decorators-legacy"]

}