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WebBug 2018-05-18 04:21:15 +00:00 committed by GitHub
commit cda86128bc
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5 changed files with 146 additions and 91 deletions

2
.gitignore vendored
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@ -1,2 +1,4 @@
/node_modules
*.sh
# webstorm
.idea

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// 修改后
import React, { Component } from 'react';
import { WebView, View, StyleSheet, Platform } from 'react-native';
import renderChart from './renderChart';
import renderChartNoFirst from './renderChart'
import echarts from './echarts.min';
export default class App extends Component {
// 预防过渡渲染
constructor(props) {
super(props);
this.setNewOption = this.setNewOption.bind(this);
shouldComponentUpdate(nextProps, nextState) {
const thisProps = this.props || {}
nextProps = nextProps || {}
if (Object.keys(thisProps).length !== Object.keys(nextProps).length) {
return true
}
for (const key in nextProps) {
if (JSON.stringify(thisProps[key]) != JSON.stringify(nextProps[key])) {
// console.log('props', key, thisProps[key], nextProps[key])
return true
}
}
return false
}
componentWillReceiveProps(nextProps) {
if(nextProps.option !== this.props.option) {
this.refs.chart.reload();
}
}
setNewOption(option) {
this.refs.chart.postMessage(JSON.stringify(option));
// 解决数据改变时页面闪烁的问题
this.refs.chart.injectJavaScript(renderChart(nextProps,false))
}
}
render() {
if (Platform.OS == 'android'){
return (
<View style={{flex: 1, height: this.props.height || 400,}}>
<WebView
ref="chart"
scrollEnabled = {false}
injectedJavaScript = {renderChart(this.props)}
injectedJavaScript = {renderChart(this.props,true)}
style={{
height: this.props.height || 400,
backgroundColor: this.props.backgroundColor || 'transparent'
}}
scalesPageToFit={Platform.OS !== 'ios'}
source={require('./tpl.html')}
onMessage={event => this.props.onPress ? this.props.onPress(JSON.parse(event.nativeEvent.data)) : null}
//source={require('./tpl.html')}
source={{uri: 'file:///android_asset/tpl.html'}}
/>
</View>
);
}else{
return (
<View style={{flex: 1, height: this.props.height || 400,}}>
<WebView
ref="chart"
scrollEnabled = {false}
scalesPageToFit={false}
injectedJavaScript = {renderChart(this.props,true)}
style={{
height: this.props.height || 400,
}}
source= {Platform.OS === 'ios' ? require('./tpl.html') : { uri: 'file:///android_asset/tpl.html' }}
/>
</View>
);
}
}
}

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@ -1,30 +1,24 @@
// 修改后
import echarts from './echarts.min';
import toString from '../../util/toString';
export default function renderChart(props) {
var myChart = null;
export default function renderChart(props,isFirst) {
// const height = props.height || 400;
const height = `${props.height || 400}px`;
const width = props.width ? `${props.width}px` : 'auto';
if (isFirst){
return `
document.getElementById('main').style.height = "${height}";
document.getElementById('main').style.width = "${width}";
var myChart = echarts.init(document.getElementById('main'));
myChart = echarts.init(document.getElementById('main'));
myChart.setOption(${toString(props.option)});
window.document.addEventListener('message', function(e) {
var option = JSON.parse(e.data);
myChart.setOption(option);
});
myChart.on('click', function(params) {
var seen = [];
var paramsString = JSON.stringify(params, function(key, val) {
if (val != null && typeof val == "object") {
if (seen.indexOf(val) >= 0) {
return;
}
seen.push(val);
}
return val;
});
window.postMessage(paramsString);
});
`
}else{
return `
document.getElementById('main').style.height = "${height}";
document.getElementById('main').style.width = "${width}";
myChart.clear();
myChart.setOption(${toString(props.option)});
`
}
}

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@ -7,7 +7,8 @@ export default function toString(obj) {
});
do {
result = result.replace('\"~--demo--~', '').replace('~--demo--~\"', '').replace(/\\n/g, '').replace(/\\\"/g,"\"");//最后一个replace将release模式中莫名生成的\"转换成"
result = result.replace('\"~--demo--~', '').replace('~--demo--~\"', '');
} while (result.indexOf('~--demo--~') >= 0);
result = result.replace(/\\n/g, '').replace(/\\\"/g,"\"");//最后一个replace将release模式中莫名生成的\"转换成"
return result;
}