Ionicons的使用

安装

参考Ionicons

• npm install react-native-vector-icons --save

  这时候可能会报错：npm WARN deprcated lodash@4.2.0:This package is deprecated. Use Object.assign.

  运行命令行
  npm i --save lodash.assign
  In Node.js:

  var assign = require('lodash.assign');   
  

• npm install rnpm -g

• rnpm link

使用

• 引入vector-icons:

  var Icon = require('react-native-vector-icons/Ionicons');
  

• 修改组件值：eg.

  • Button -> Icon.Button
  • TabBarIOS.Item -> Icon.TabBarItem

• 修改属性值：eg.

  • icon -> iconName
  • selectedIcon -> selectedIconName

坑

• 碰到过Ionians导入不成功，错误提示信息为：

Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. 

于是我将 var Icon = require('react-native-vector-icons/Ionicons');改为
import Icon from 'react-native-vector-icons/Ionicons';导入成功