React native vector icons - dynamic type

Question

I'm using different types of react native vector icons - Material and FontAwesome depending on availability of a particular icon. I wanted to create a common component that wraps usage of the icons across the app. So far I have:

import React from 'react';
import Icon from "react-native-vector-icons/FontAwesome";
import {theme} from "../../../styles/style";

/**
 * Common reusable icon component
 * @param props
 * @returns {*}
 */
const icon = (props) => {
    return (
        <Icon
            size={theme.SIZE_ICON}
            color={theme.BACKGROUND_ICON_COLOR}
            {...props}
            style={props.style}/>
    );
};

export default icon;

Which works only for FontAwesome, how can I make it dynamic based on e.g. prop parameter so I can use Material icons when I need to? Note: I wouldn't like to create separate components for each type e.g. IconMaterial, IconFontAwesome etc. I want the name of the component to be Icon regardless of type. Is that possible?

Tim Tim · Accepted Answer · 2019-07-06T13:24:43

You could pass a prop called iconFamily to your icon component:

Inside your Icon Component you are importing all the Fonts you want to use, e.g.:

import IconFA from "react-native-vector-icons/FontAwesome";
import IconMA from "react-native-vector-icons/Material";

Then inside Icon's render function:

  const Icon = (props) => {

  renderIcon = () => {
    if (props.iconFamily == "FA") {
      return (
        <IconFA
        size={23}
        {...props}
        style={props.style}/>
      );
   } 
   if (props.iconFamily == "MA") {
      return (
        <IconMA
        size={23}
        {...props}
        style={props.style}/>
      );
   }
  }
  return (
      renderIcon()
  )
}

An when you are using your custom icon component you just have to specify the iconFamily prop:

 <Icon iconFamily="FA" name="home" color="green" /> 
 <Icon iconFamily="MA" name="code" color="red" />

Output:

Complete Working Example:

https://snack.expo.io/@tim1717/humiliated-hummus

React native vector icons - dynamic type

1 Answers