react-native-circular-slider :radio_button:

React Native component for creating circular slider.

Example app – inspired by Apple's Bedtime :alarm_clock:

(It's just an example what you can achieve – with this package you can create any circular slider)

Installation

1. Install library and react-native-svg

   npm i --save react-native-circular-slider react-native-svg
   

2. Link native code for SVG

   react-native link react-native-svg
   

Usage

Import Circular Slider

import CircularSlider from 'react-native-circular-slider';

Use as follows:

<CircularSlider
  startAngle={this.state.startAngle}
  angleLength={this.state.angleLength}
  onUpdate={({ startAngle, angleLength }) => this.setState({ startAngle, angleLength })}
  segments={5}
  strokeWidth={40}
  radius={145}
  gradientColorFrom="#ff9800"
  gradientColorTo="#ffcf00"
  showClockFace
  clockFaceColor="#9d9d9d"
  bgCircleColor="#171717"
  stopIcon={<G><Path .../></G>}
  startIcon={<G><Path .../></G>}
/>

Configuration

You can configure the passing by following props:

• startAngle – angle where the slider starts (from 0 to 2π)
• angleLength - length of the slider (from 0 to 2π)
• onUpdate({ startAngle, angleLength }) - when slider is moved, onUpdate(data) is triggered, where data is an object of new values of startAngle and angleLength.
• segments (optional) - SVG doesn't support canonical gradients, so it's imitated by using multiple linear gradients across the slider. In most cases 5 should be fine.
• strokeWidth (optional) - width of slider
• radius (optional) - size of the slider
• gradientColorFrom (optional) - initial gradient color
• gradientColorTo (optional) - final gradient color
• showClockFace (optional) - if component should render clock face
• bgCircleColor (optional) - color of the circle under the slider (pathway for a slider)
• stopIcon (optional) - SVG Path for a stop icon (see the example)
• startIcon (optional) - SVG Path for a start icon (see the example)

Working example app

With XCode

You'll find working example in the example directory of this repository. You can run it by:

git clone https://github.com/bgryszko/react-native-circular-slider.git
cd  react-native-circular-slider/example/Bedtime
npm install
open ios/Bedtime.xcodeproj

XCode will open. Click Run button and that's it.

With Exponent

The easiest way to run it is with Exponent: https://getexponent.com/@community/bedtime

If you'd rather build it locally, follow these steps:

1. Download XDE
2. Clone the repo and install dependencies

git clone https://github.com/bgryszko/react-native-circular-slider.git
cd  react-native-circular-slider/example-exponent/Bedtime
npm install

3. Open the project with XDE

Author

Bartosz Gryszko (b@gryszko.com)

For new components and updates follow me on twitter.

License

MIT