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react-native-swipe-gesture-control

v1.0.2

Published

This is the fork of the original repository. The changes include control to enable or disable swipes in a specific direction.

Downloads

13

Readme

react-native-swipe-gesture-control

React Native component for handling swipe gestures in up, down, left and right direction.

Your Forked Package

This is a fork of react-native-swipe-gestures.

Acknowledgment

This project is based on the work of glepur.

Changes Made

  • Feature, ability to toggle the swipe gesture detection in a particular detection.

Installation

npm i react-native-swipe-gesture-control

yarn add react-native-swipe-gesture-control

Usage

'use strict';

import React, {Component} from 'react';
import {View, Text} from 'react-native';
import GestureRecognizer, {swipeDirections} from 'react-native-swipe-gestures';

class SomeComponent extends Component {

  constructor(props) {
    super(props);
    this.state = {
      myText: 'I\'m ready to get swiped!',
      gestureName: 'none',
      backgroundColor: '#fff'
    };
  }

  onSwipeUp(gestureState) {
    this.setState({myText: 'You swiped up!'});
  }

  onSwipeDown(gestureState) {
    this.setState({myText: 'You swiped down!'});
  }

  onSwipeLeft(gestureState) {
    this.setState({myText: 'You swiped left!'});
  }

  onSwipeRight(gestureState) {
    this.setState({myText: 'You swiped right!'});
  }

  onSwipe(gestureName, gestureState) {
    const {SWIPE_UP, SWIPE_DOWN, SWIPE_LEFT, SWIPE_RIGHT} = swipeDirections;
    this.setState({gestureName: gestureName});
    switch (gestureName) {
      case SWIPE_UP:
        this.setState({backgroundColor: 'red'});
        break;
      case SWIPE_DOWN:
        this.setState({backgroundColor: 'green'});
        break;
      case SWIPE_LEFT:
        this.setState({backgroundColor: 'blue'});
        break;
      case SWIPE_RIGHT:
        this.setState({backgroundColor: 'yellow'});
        break;
    }
  }

  render() {

    const config = {
      velocityThreshold: 0.3,
      directionalOffsetThreshold: 80
    };

    return (
      <GestureRecognizer
        onSwipe={(direction, state) => this.onSwipe(direction, state)}
        onSwipeUp={(state) => this.onSwipeUp(state)}
        onSwipeDown={(state) => this.onSwipeDown(state)}
        onSwipeLeft={(state) => this.onSwipeLeft(state)}
        onSwipeRight={(state) => this.onSwipeRight(state)}
        config={config}
        style={{
          flex: 1,
          backgroundColor: this.state.backgroundColor
        }}
        >
        <Text>{this.state.myText}</Text>
        <Text>onSwipe callback received gesture: {this.state.gestureName}</Text>
      </GestureRecognizer>
    );
  }
}

export default SomeComponent;

Config

Can be passed within optional config property.

| Params | Type | Default | Description | | -------------------------- |:-------------:| ------- | ------------ | | velocityThreshold | Number | 0.3 | Velocity that has to be breached in order for swipe to be triggered (vx and vy properties of gestureState) | | directionalOffsetThreshold | Number | 80 | Absolute offset that shouldn't be breached for swipe to be triggered (dy for horizontal swipe, dx for vertical swipe) | | gestureIsClickThreshold | Number | 5 | Absolute distance that should be breached for the gesture to not be considered a click (dx or dy properties of gestureState) | | detectSwipeUp | boolean | true | Enables detection of swipe up gestures. | | detectSwipeDown | boolean | true | Enables detection of swipe down gestures. | | detectSwipeLeft | boolean | true | Enables detection of swipe left gestures. | | detectSwipeRight | boolean | true | Enables detection of swipe right gestures. |

Methods

onSwipe(gestureName, gestureState)

| Params | Type | Description | | ------------- |:-------------:| ------------ | | gestureName | String | Name of the gesture (look example above) | | gestureState | Object | gestureState received from PanResponder |

onSwipeUp(gestureState)

| Params | Type | Description | | ------------- |:-------------:| ------------ | | gestureState | Object | gestureState received from PanResponder |

onSwipeDown(gestureState)

| Params | Type | Description | | ------------- |:-------------:| ------------ | | gestureState | Object | gestureState received from PanResponder |

onSwipeLeft(gestureState)

| Params | Type | Description | | ------------- |:-------------:| ------------ | | gestureState | Object | gestureState received from PanResponder |

onSwipeRight(gestureState)

| Params | Type | Description | | ------------- |:-------------:| ------------ | | gestureState | Object | gestureState received from PanResponder |