r-swipeable

r-swipeable provides Swipeable which makes its subcomponents horizontally swipeable.

• Repositions to nearest child center after a flick gesture.
• Uses requestAnimationFrame to manage translations changes.

Usage

Swipe and drag

import React, { Component, PropTypes } from 'react';
import Swipeable from 'r-swipeable';

function renderTestItems() {
  return [1, 2, 3, 4, 5].map(i => (
    <div
      className={`child child-${i}`}
      key={ i }
    >
      { i }
    </div>
  ));
}

const SwipeableComponent = () => (
  <Swipeable>
    { renderTestItems() }
  </Swipeable>
);

export default SwipeableComponent;

Example

Add button navigation

To manage the swiper state from a parent component us the following structure:

class SwipeableComponent extends Component {
  constructor(props) {
    super(props);

    this.onChange = this.onChange.bind(this);
    this.forward = this.step.bind(this, true);
    this.backward = this.step.bind(this, false);
  }

  step(forward) {
    let currentIndex = this.state.currentIndex;

    if (forward) {
      this.setState({ currentIndex: ++this.state.currentIndex });
    } else {
      this.setState({ currentIndex: --this.state.currentIndex });
    }
  }

  onChange(index) {
    // Update container state if swipeable is updated internally by a drag.
    this.setState({ currentIndex: index });
  }

  render() {
    return (
      <div>
        <Swipeable
          onChange={ this.onChange }
          currentIndex={ this.state.currentIndex }
        >
          { renderTestItems() }
        </Swipeable>

        <div onClick={ this.forward }>
          { `Go to forwards` }
        </div>

        <div onClick={ this.backward }>
          { `Go to backwards` }
        </div>
      </div>
    );
  }
}

export default SwipeableComponent;

API

<Swipeable>

Wrapper component which makes its child elements swipeable.

Props

children (required) - Elements that will be wrapper (in row).

children (required) - Elements that will be wrapper and made swipeable. (horizontally)

flickSensitivity - Specifies a limit which decides when an actual flick gesture should be triggered.

slopeLimit - Indicates if a swipe should be considered x-drag or y-drag. It's only possible to swipe in on direction at the time.

Methods

onChange(callback)

Called with the new index as a parameter, every time a new index is set.

function cb(index) {
  ...
}

<Swipeable onChange={ cb }>
  ...
</Swipeable>