React Native Drawer

Configurable react native pull out drawer. Supports displace, overlay (material design) static (slack style) transitions modes, as well as custom tweens.

• Installation
• Usage
• Examples
• Props
• Demo
• Credits

Installation

npm install react-native-drawer

Usage

var Drawer = require('react-native-drawer')

var Application = React.createClass({
  closeControlPanel: function(){
    this.refs.drawer.close()
  },
  openControlPanel: function(){
    this.refs.drawer.open()
  },
  render: function() {
    return (
      <Drawer
        ref="drawer"
        content={<ControlPanel />}
        >
        <MainView />
      </Drawer>
    )
  }
})

Examples

Simple

//Parallax Effect (slack style)
<Drawer
  type="static"
  content={<ControlPanel />}
  openDrawerOffset={100}
  styles={{main: {shadowColor: "#000000", shadowOpacity: 0.4, shadowRadius: 3}}}
  tweenHandler={Drawer.tweenPresets.parallax}
  >
    <Main />
</Drawer>

//Material Design Style Drawer
<Drawer
  type="overlay"
  openDrawerOffset={50} //50px gap on the right side of drawer
  panCloseMask={1} //can close with right to left swipe anywhere on screen
  styles={{
    drawer: {
      shadowColor: "#000000",
      shadowOpacity: 0.8,
      shadowRadius: 0,
    }
  }}
  tweenHandler={(ratio) => {
    return {
      drawer: { shadowRadius: Math.min(ratio*5*5, 5) },
      main: { opacity:(2-ratio)/2 },
    }
  }}
  content={<ControlPanel />}
  >
    <Main />
</Drawer>

Props

This module supports a wide range of drawer styles, and hence has a lot of props.

Important

• content (React.Component) null - Menu component
• type (String: displace:overlay:static) displace- Type of drawer.
• openDrawerOffset (Number) 0 - Can either be a integer (pixel value) or decimal (ratio of screen width). Defines the right hand margin when the drawer is open.
• closedDrawerOffset (Number) 0 - Same as openDrawerOffset, except defines left hand margin when drawer is closed.
• disabled (Boolean) false - If true the drawer can not be opened and will not respond to pans.

Animation / Tween

• tweenHandler (Function) null - Takes in the pan ratio (decimal 0 to 1) that represents the tween percent. Returns and object of native props to be set on the constituent views { drawer: {/native props/}, main: {/native props/} }
• tweenDuration (Integer) 250 - The duration of the open/close animation.
• tweenEasing (String) linear - A easing type supported by tween-functions

Event Handlers

• onOpen (Function) - Will be called immediately after the drawer has entered the open state.
• onClose (Function) - Will be called immediately after the drawer has entered the closed state.

Gestures

• captureGestures (Boolean) false - If true, will capture all gestures inside of the pan mask. Meaning child buttons and scroll views will not trigger.
• acceptDoubleTap (Boolean) false - Toggle drawer when double tap occurs within pan mask?
• acceptTap (Boolean) false - Toggle drawer when any tap occurs within pan mask?
• acceptPan (Boolean) true - Allow for drawer pan (on touch drag). Set to false to effectively disable the drawer while still allowing programmatic control.

Additional Configurations

• openDrawerThreshold (Number) .25 - Ratio of screen width that must be travelled to trigger a drawer open/close
• panOpenMask (Number) .05 - Ratio of screen width that is valid for the start of a pan open action. Make this number small if you need pans to propagate to children.
• panCloseMask (Number) .25 - Ratio of screen width that is valid for the start of a pan close action. Make this number small if you need pans to propagate to children.
• relativeDrag (Boolean) true - true -> open/close calculation based on pan dx : false -> calculation based on absolute pan position (i.e. touch location)
• panStartCompensation (Boolean) false - Should the drawer catch up to the finger drag position?
• initializeOpen (Boolean) false - Initialize with drawer open?
• side (String left|right) left - which side the drawer should be on.

Tween Handler

You can achieve pretty much any animation you want using the tween handler with the transformMatrix property. E.G.

tweenHandler={(ratio) => {
  var r0 = -ratio/6
  var r1 = 1-ratio/6
  var t = [
             r1,  r0,  0,  0,
             -r0, r1,  0,  0,
             0,   0,   1,  0,
             0,   0,   0,  1,
          ]
  return {
    main: {
      style: {
        transformMatrix: t,
        opacity: 1 - ratio/2,
      },
    }
  }
}}

Will result in a skewed fade out animation.

warning: Frame rate, and perceived smoothness will vary based on the complexity and speed of the animation. It will likely require some tweaking and compromise to get the animation just right.

Demo

• git clone https://github.com/rt2zz/react-native-drawer.git
• cd rn-drawer && npm install
• Open ``./examples/RNDrawerDemo/RNDrawerDemo.xcodeproject` in xcode
• command+r (in xcode)

Credits

Component was adapted from and inspired by @khanghoang's RNSideMenu AND @kureevalexey's react-native-side-menu