morenoh149 / react-native-radio-buttons

A Radio-button like logic wrapper for React Native

react-native-radio-buttons

A react component to implement radio buttons-like behaviors: multiple options, only one option can be selected at a given time.

Both the container and option nodes are customizable. Comes with SegmentedControls clone, only more customizable (see below, animations to come).

Install

npm i -S react-native-radio-buttons

This module relies on ES6 modules, you should add the whitelist instruction in your Babel config (see example .babelrc).

Demo app

git clone [email protected]:ArnaudRinquin/react-native-radio-buttons.git
cd react-native-buttons
npm run demo

And press Cmd + R

Usage

Here is an extensive overview of the component usage.

import { RadioButtons } from 'react-native-radio-buttons'

// ...

render() {
  const options = [
    "Option 1",
    "Option 2"
  ];

  function setSelectedOption(selectedOption){
    this.setState({
      selectedOption
    });
  };

  function renderOption(option, selected, onSelect, index){
    const style = selected ? { fontWeight: 'bold'} : {}

    return (
      <TouchableWithoutFeedback onPress={onSelect} key={index}>
        <Text style={style}>{option}</Text>
      </TouchableWithoutFeedback>
    );
  }

  function renderContainer(optionNodes){
    return <View>{optionNodes}</View>;
  }

  return (
    <View style={{margin: 20}}>
      <RadioButtons
        options={ options }
        onSelection={ setSelectedOption.bind(this) }
        selectedOption={this.state.selectedOption }
        renderOption={ renderOption }
        renderContainer={ renderContainer }
      />
      <Text>Selected option: {this.state.selectedOption || 'none'}</Text>
    </View>)
  ;
}

Will render this

Props

• options - [] mandatory array of anything, will be passed to renderOption
• onSelection - function(option){} option selection callback
• selectedOption - option the initially selected option, optional
• renderOption - function(option, selected, onSelect, index) should return an option node, default generate <Text> nodes and adds {fontWieght:'bold'} to the selected option.
• renderContainer - function(optionsNodes) must render the container, default is RadioButtons.renderVerticalContainer (see below)

Full javascript SegmentedControls clone

This library comes with a clone of the native SegmentedControls, based on RadioButtons.

import { SegmentedControls } from 'react-native-radio-buttons'

// ...

<SegmentedControls
  options={ options }
  onSelection={ setSelectedOption.bind(this) }
  selectedOption={ this.state.selectedOption }
/>

You override al the defaults through the props.

<SegmentedControls
  tint= {'#f80046'}
  selectedTint= {'white'}
  backTint= {'#1e2126'}
  options={ options }
  allowFontScaling={ false } // default: true
  onSelection={ setSelectedOption.bind(this) }
  selectedOption={ this.state.selectedOption }
/>

Here is the list of the props you might override:

const IOS_BLUE = '#007AFF';
const IOS_WHITE = '#ffffff';

const DEFAULTS = {
  direction: 'row',

  tint: IOS_BLUE,
  backTint: IOS_WHITE,

  paddingTop: 5,
  paddingBottom: 5,
  textAlign: 'center',

  selectedTint: IOS_WHITE,
  selectedBackgroundColor: IOS_WHITE,

  separatorTint: IOS_BLUE,
  separatorWidth: 1,

  containerBorderTint: IOS_BLUE,
  containerBorderWidth: 1,
  containerBorderRadius: 5,

}

You can also specify how to extract the labels from the options through the extractText prop.

options = [
  {
    label: 'Option 1',
    value: 'opt1'
  },
  {
    label: 'Option 2',
    value: 'opt2'
  }
]

<SegmentedControls
  options={ options }
  onSelection={ setSelectedOption.bind(this) }
  selectedOption={ this.state.selectedOption },
  extractText={ (option) => option.label }
/>

Or even specify the whole renderOption() function:

<SegmentedControls
  // ...
  renderOption={(option, selected) => {
    return (
      // ...render stuff
    )
  }}
}}

Helpers

RadioButtons.renderVerticalContainer;

A super simple renderContainer function that generates a with {flexDirection: "column"}. It is used as default rendeContainer if you don't specify it.

Usage:

<RadioButtons
  options={ options }
  onSelection={ setSelectedOption }
  renderContainer={RadioButtons.renderVerticalContainer}
/>

RadioButtons.renderHorizontalContainer;

Another super simple renderContainer function that generates a with {flexDirection: "row"}

Usage:

<RadioButtons
  options={ options }
  onSelection={ setSelectedOption }
  renderContainer={RadioButtons.renderHorizontalContainer}
/>

RadioButtons.getViewContainerRenderer(viewCOntainerStyle);

An helper that generates a simple <View> with the provided style.

Usage:

<RadioButtons
  options={ options }
  onSelection={ setSelectedOption }
  renderContainer={RadioButtons.getViewContainerRenderer({
    backgroundColor: '#f80046',
    flexDirection: 'row',
    justifyContent: 'space-around',
  })}
/>

RadioButtons.getTextOptionRenderer(normalStyle, selectedStyle, extractText);

An helper that generates <Text> options wrapped in <TouchableWithoutFeedback>. normalStyle and selectedStyle will be applied to the nodes, depending on state. extractText(options) can be specified.

Usage:

const normalStyle = {
  color: 'white'
};

const selectedStyle = {
  color: '#f80046',
  fontWeight: 'bold'
};

const extractText = (option) => option.label;

<RadioButtons
  options={ options }
  onSelection={ setSelectedOption }
  renderOptions={RadioButtons.getTextOptionRenderer(normalStyle, selectedStyle, extractText)}
/>