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React Native Gestures. Support: Drag, Scale and Rotate a Component.

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keske/react-native-easy-gestures

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React Native Easy Gestures

React Native Gestures. Support: Drag, Scale and Rotate a Component.

example

Instalation

RN > 0.46 👶

$ npm install --save react-native-easy-gestures

RN < 0.46 👴

$ npm install --save react-native-easy-gestures@1.0.x

Usage

import Gestures from 'react-native-easy-gestures';

/* Simple example: */
<Gestures>
  <Image
    source={photo}
    style={{
      width: 200,
      height: 300,
    }}
  />
</Gestures>

/* Only drag example witn `onChange` event: */
<Gestures
  rotatable={false}
  scalable={false}
  onChange={(event, styles) => {
    console.log(styles);
  }}
>
  <Image
    source={photo}
    style={{
      width: 200,
      height: 300,
    }}
  />
</Gestures>

/**
 * Another example:
 * Drag only on x axis;
 * Scale from 0.1 to 7;
 * Do not rotate;
 * On release callback;
 */
<Gestures
  draggable={{
    y: false,
  }}
  scalable={{
    min: 0.1,
    max: 7,
  }}
  rotatable={false}
  onEnd={(event, styles) => {
    console.log(styles);
  }}
>
  <Image
    source={photo}
    style={{
      width,
      height,
    }}
  />
</Gestures>

Props

Behavior

draggable?: boolean = true | object = { x?: boolean = true, y?: boolean = true }
rotatable?: boolean = true
scalable?: boolean = true | object = { min?: number = 0.33, max?: number = 2 }

Styles

style?: object // RN Styles

Callbacks

onStart?(event: object, styles: object): void
onChange?(event: object, styles: object): void
onEnd?(event: object, styles: object): void
onMultyTouchStart?(event: object, styles: object): void
onMultyTouchChange?(event: object, styles: object): void
onMultyTouchEnd?(event: object, styles: object): void
onRotateStart?(event: object, styles: object): void
onRotateChange?(event: object, styles: object): void
onRotateEnd?(event: object, styles: object): void
onScaleStart?(event: object, styles: object): void
onScaleChange?(event: object, styles: object): void
onScaleEnd?(event: object, styles: object): void

How to reset styles

<Gestures
  ref={(c) => { this.gestures = c; }}
  onEnd={(event, styles) => {
    this.gestures.reset((prevStyles) => {
      console.log(prevStyles);
    });
  }}

Development

$ git clone https://github.com/keske/react-native-easy-gestures.git
$ cd react-native-easy-gestures
$ npm install
$ react-native run-ios

TODO

  • Rotate step, ex: every 90deg
  • Guidelines and center snap

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