huiliao-app/rn-wechat/app/Services/ExamplesRegistry.js

// @flow

import React from 'react'
import { Text, View } from 'react-native'
import R from 'ramda'
import { ApplicationStyles } from '../Themes'
import DebugSettings from '../Config/DebugSettings'
let globalExamplesRegistry = []

export const addExample = (title: string, usage: () => React$Element<*>) => { if (DebugSettings.includeExamples) globalExamplesRegistry.push({title, usage}) }

const renderExample = (example: Object) => {
  return (
    <View key={example.title}>
      <View style={ApplicationStyles.darkLabelContainer}>
        <Text style={ApplicationStyles.darkLabel}>{example.title}</Text>
      </View>
      {example.usage.call()}
    </View>
  )
}

export const renderExamples = () => R.map(renderExample, globalExamplesRegistry)

// Default for readability
export default {
  render: renderExamples,
  add: addExample
}