React Native Implement React ART
First off lets set up a react-native project. (Assuming you have react-native cli installed);
react-native init react_art_demo
The current released version of react-native doesn’t have the ART libs in it so in our node_modules folder we can delete the react-native in
there and do a git clone of master git clone https://github.com/facebook/react-native.git
We will also need the art lib itself installed. So cd to the root of react_art_demo.
Then run npm install art
Once we have the master repo of react-native, and art installed we can
open up our react_art_demo project in XCode.
We will need to do 2 things.
- Add the ART.xcodeproj to XCode
- Link the binary
To add ART.xcodeproj find the file located in react-native/Libraries/ART/ART.xcodeproj and just
drag it over to the Libraries section in XCode.
With the root react_art_demo project selected on the left, select Build Phases from the center view. There will be a section called “Link Binary With Libraries”,
expand it, press the + and select libART.a
Now go forth and write your react-art. I always like to get the vector-widget example running so to do that here is the code.
/**
* File index.ios.js
* Sample React Native App
* https://github.com/facebook/react-native
*/
'use strict';
var React = require('react-native');
var {
AppRegistry,
StyleSheet,
Text,
View,
} = React;
var VectorWidget = require('./VectorWidget');
var react_art_demo = React.createClass({
render: function() {
return (
);
}
});
var styles = StyleSheet.create({
container: {
flex: 1,
alignItems: 'center',
backgroundColor: '#FFF',
},
vector: {
width: 100,
height: 100
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
color: '#333333',
marginBottom: 5,
marginTop: 100
},
});
AppRegistry.registerComponent('react_art_demo', () => react_art_demo);
/**
* File VectorWidget.js
* Copyright 2013 Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
"use strict";
var React = require('react-native');
var ReactART = require('ReactNativeART');
var {
Art,
TouchableWithoutFeedback
} = React;
var {
Group,
Shape,
Surface,
Transform
} = ReactArt;
var MOUSE_UP_DRAG = 0.978;
var MOUSE_DOWN_DRAG = 0.9;
var MAX_VEL = 11;
var CLICK_ACCEL = 3;
var BASE_VEL = 0.15;
/**
* An animated SVG component.
*/
var VectorWidget = React.createClass({
/**
* Initialize state members.
*/
getInitialState: function() {
return {degrees: 0, velocity: 0, drag: MOUSE_UP_DRAG};
},
/**
* When the component is mounted into the document - this is similar to a
* constructor, but invoked when the instance is actually mounted into the
* document. Here's, we'll just set up an animation loop that invokes our
* method. Binding of `this.onTick` is not needed because all React methods
* are automatically bound before being mounted.
*/
componentDidMount: function() {
this._interval = window.setInterval(this.onTick, 20);
},
componentWillUnmount: function() {
window.clearInterval(this._interval);
},
onTick: function() {
var nextDegrees = this.state.degrees + BASE_VEL + this.state.velocity;
var nextVelocity = this.state.velocity * this.state.drag;
this.setState({degrees: nextDegrees, velocity: nextVelocity});
},
/**
* This is the "main" method for any component. The React API allows you to
* describe the structure of your UI component at *any* point in time.
*/
render: function() {
return (
);
},
/**
* Better SVG support for React coming soon.
*/
renderGraphic: function(rotation) {
return (
);
}
});
var BORDER_PATH = "M3.00191459,4 C1.34400294,4 0,5.34785514 0,7.00550479 L0,220.994495 C0,222.65439 1.34239483,224 3.00191459,224 L276.998085,224 C278.655997,224 280,222.652145 280,220.994495 L280,7.00550479 C280,5.34561033 278.657605,4 276.998085,4 L3.00191459,4 Z M3.00191459,4";
var BG_PATH = "M3.00191459,1 C1.34400294,1 0,2.34785514 0,4.00550479 L0,217.994495 C0,219.65439 1.34239483,221 3.00191459,221 L276.998085,221 C278.655997,221 280,219.652145 280,217.994495 L280,4.00550479 C280,2.34561033 278.657605,1 276.998085,1 L3.00191459,1 Z M3.00191459,1";
var BAR_PATH = "M3.00191459,0 C1.34400294,0 0,1.34559019 0,3.00878799 L0,21 C0,21 0,21 0,21 L280,21 C280,21 280,21 280,21 L280,3.00878799 C280,1.34708027 278.657605,0 276.998085,0 L3.00191459,0 Z M3.00191459,0";
var RED_DOT_PATH = "M12.5,17 C16.0898511,17 19,14.0898511 19,10.5 C19,6.91014895 16.0898511,4 12.5,4 C8.91014895,4 6,6.91014895 6,10.5 C6,14.0898511 8.91014895,17 12.5,17 Z M12.5,17";
var YELLOW_DOT_PATH = "M31.5,17 C35.0898511,17 38,14.0898511 38,10.5 C38,6.91014895 35.0898511,4 31.5,4 C27.9101489,4 25,6.91014895 25,10.5 C25,14.0898511 27.9101489,17 31.5,17 Z M31.5,17";
var GREEN_DOT_PATH = "M50.5,17 C54.0898511,17 57,14.0898511 57,10.5 C57,6.91014895 54.0898511,4 50.5,4 C46.9101489,4 44,6.91014895 44,10.5 C44,14.0898511 46.9101489,17 50.5,17 Z M50.5,17";
var CENTER_DOT_PATH = "M84,105 C92.8365564,105 100,97.8365564 100,89 C100,80.1634436 92.8365564,73 84,73 C75.1634436,73 68,80.1634436 68,89 C68,97.8365564 75.1634436,105 84,105 Z M84,105";
var RING_ONE_PATH = "M84,121 C130.391921,121 168,106.673113 168,89 C168,71.3268871 130.391921,57 84,57 C37.6080787,57 0,71.3268871 0,89 C0,106.673113 37.6080787,121 84,121 Z M84,121";
var RING_TWO_PATH = "M84,121 C130.391921,121 168,106.673113 168,89 C168,71.3268871 130.391921,57 84,57 C37.6080787,57 0,71.3268871 0,89 C0,106.673113 37.6080787,121 84,121 Z M84,121";
var RING_THREE_PATH = "M84,121 C130.391921,121 168,106.673113 168,89 C168,71.3268871 130.391921,57 84,57 C37.6080787,57 0,71.3268871 0,89 C0,106.673113 37.6080787,121 84,121 Z M84,121";
var RING_TWO_ROTATE = new Transform().translate(84.000000, 89.000000).rotate(-240.000000).translate(-84.000000, -89.000000);
var RING_THREE_ROTATE = new Transform().translate(84.000000, 89.000000).rotate(-300.000000).translate(-84.000000, -89.000000);
module.exports = VectorWidget;