Can i extend elements and draw it again?

Chart is not showing on real IOS device, but on emulator everything work great.

Hey,

I have created the project with expo init and used the react-native-charts-js...
Its running fine in Android Emulator but when building a signed APK for the application it throws the following error.

Can anyone help out what is the issue?

Thanks in Advance

Hi,

I get error while develop with Expo, the screenshot as below,

Encountered an error loading page, Object {
"canGoBack": false,
"canGoForward": false,
"code": -1,
"description": "net::ERR_FILE_NOT_FOUND",
"loading": false,
"target": 173,
"title": "",
"url": "file:///android_asset/dist/index.html",
}

• node_modules/expo/build/environment/muteWarnings.fx.js:18:23 in warn
• ... 20 more stack frames from framework internals

Thanks

Everything works in debugging versions on both platforms.
But in release versions on IOS and Android nothing shows.

please help me chartjs is working very well with expo but when i build an APK it is not working nothing shown

There is a warning on iOS devices connected to the scalesPageToFit(proprety is not supported when useWebKite = true).

The line
scalesPageToFit={Platform.OS === 'ios' ? false : true}

should be replaced by
scalesPageToFit={Platform.OS === 'ios' ? undefined : true}

Undefined in place of "false" is a better practice.

Thank you.

I'm trying to get my chart to update dynamically as new data comes. I have already updated the values, but the graph does not update the change in data dynamically. What is the equivalent function of the React function chart.update() for react-native to enable the graph to update?

`import {Chart,LineChart,BarChart,PieChart,ProgressChart,ContributionGraph} from 'react-native-chart-kit'
import React, { Component } from 'react';
import { View, Text, StyleSheet, ImageBackground, Icon, FlatList, Button, TextInput, Dimensions } from 'react-native';
import CheckBox from 'react-native-check-box'

export default class FocusScreen extends React.Component {
constructor(props) {
super(props);
this.state = {
isChecked: false,
}
this.dates =['January', 'February', 'March', 'April', 'May', 'June']
this.values = [20, 30,40,50,60,70]
this.shouldRedraw = true
this.chart = new LineChart();
}

componentDidMount(){
this.timer = setInterval(()=> this.returnLabels(), 1000)
this.timer = setInterval(()=> this.returnData(), 1000)
}

updateShouldRedraw = () => {
this.shouldRedraw = true;
}

returnLabels = () => {
this.dates.push(parseInt(Math.random()*100).toString())
console.log(this.dates)
return this.dates
}

returnData = () => {
this.values.push(parseInt(Math.random()*100))
console.log(this.values)
return this.values
}

render() {
return (



Bezier Line Chart

<LineChart

        data={{
          labels: this.returnLabels(),
          datasets: [{
            data: this.returnData()
          }]
        }}
        redraw
        width={Dimensions.get('window').width /2} // from react-native
        height={400}
        yAxisLabel={'$'}
        chartConfig={{
          backgroundColor: '#e26a00',
          backgroundGradientFrom: '#fb8c00',
          backgroundGradientTo: '#ffa726',
          decimalPlaces: 2, // optional, defaults to 2dp
          color: (opacity = 1) => `rgba(255, 255, 255, ${opacity})`,
          style: {
            borderRadius: 16
          }
        }}
        bezier
        style={{
          marginVertical: 8,
          borderRadius: 16
        }}
      />
    </View>
  </View>
);

}
}

const styles = StyleSheet.create({
container: {
flex: 1,

alignItems: 'center',
width: '100%',
height: '100%',

},
imageBackground: {
height: '100%',
width: '100%',
},
wrapper: {
borderWidth: 3,
borderColor: 'green',
flex: 1,
margin: '10%',
marginTop: '20%',
height: 40,
justifyContent: 'flex-end',
alignItems: 'stretch',

},

leftText: {
fontSize: 28,
}
})`

"react": "16.3.1",
"react-native": "0.55.4",
"react-native-chartjs": "^1.0.3"

I installed react-native-chartjs and react-native-webview and run it.
But there are still errors.
How can i solve it??

I've been checking on this error and im not able to fix it, the error is:

"Error evaluating injectedJavaScript: This is possibly due to an unsupported return type. Try adding true to the end of your injectedJavaScript string. Error Domain=WKErrorDomain Code=4 "A JavaScript exception ocurred"
UserInfo ={WKJavaScriptExceptionLineNumber=0, WKJavaScriptExceptionMessage=, WKJavaScriptExceptionColumnNumber=0, NSLocalizedDescription=A JavaScript exception occurred}

I've been checking inside the library and everything is working perfectly, even in Android, it's working correctly.