Geek asks and answers

How to add Highcharts to UIWebView in iOS?

I am completely new to HighCharts, and I mentioned the example http://blog.li-labs.com/developing-ios-apps-with-custom-charting/ and tried the same thing, but on the iPad simulator I get a blank screen .

I asked questions about stack overflow, but still it does not work. Can anyone tell me where I am going wrong.

EDIT: Code in my HTML file:

 <!DOCTYPE HTML>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>Highcharts Example</title>

        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
        <script type="text/javascript">
$(function () {

        // Radialize the colors
        Highcharts.getOptions().colors = Highcharts.map(Highcharts.getOptions().colors, function(color) {
            return {
                radialGradient: { cx: 0.5, cy: 0.3, r: 0.7 },
                stops: [
                    [0, color],
                    [1, Highcharts.Color(color).brighten(-0.3).get('rgb')] // darken
                ]
            };
        });

        // Build the chart
        $('#container').highcharts({
            chart: {
                plotBackgroundColor: null,
                plotBorderWidth: null,
                plotShadow: false
            },
            title: {
                text: 'Browser market shares at a specific website, 2010'
            },
            tooltip: {
                pointFormat: '{series.name}: <b>{point.percentage}%</b>',
                percentageDecimals: 1
            },
            plotOptions: {
                pie: {
                    allowPointSelect: true,
                    cursor: 'pointer',
                    dataLabels: {
                        enabled: true,
                        color: '#000000',
                        connectorColor: '#000000',
                        formatter: function() {
                            return '<b>'+ this.point.name +'</b>: '+ this.percentage +' %';
                        }
                    }
                }
            },
            series: [{
                type: 'pie',
                name: 'Browser share',
                data: [
                    ['Firefox',   45.0],
                    ['IE',       26.8],
                    {
                        name: 'Chrome',
                        y: 12.8,
                        sliced: true,
                        selected: true
                    },
                    ['Safari',    8.5],
                    ['Opera',     6.2],
                    ['Others',   0.7]
                ]
            }]
        });
    });


        </script>
    </head>
    <body>
<!--<script src="../../js/highcharts.js"></script>-->
<!--<script src="../../js/modules/exporting.js"></script>-->

<script type="text/javascript" src="highcharts.js"></script>
<script type="text/javascript" src="exporting.js"></script>

<div id="container" style="min-width: 400px; height: 400px; margin: 0 auto"></div>
    </body>
</html>

How to add and use Javascript libraries in Xcode

Here is a simple look at how I process code and data in Xcode.

  • Download the Javascript report package from your chart site. In my case: http://www.highcharts.com/download

  • Add or import files to Xcode resources. (I suggest creating a group called JS).

  • XCode . , "". - → → → → .

  • html HighChart ( javascript-). hcpie.html

  • , ( ). .

RIGHT =

WRONG =

  • UIWebView ( chart1). .

@interface FirstViewController: UIViewController {IBOutlet UIWebView * Chart1; }

@end

  • HTML .

    • (void) viewDidLoad {

NSString * pathOfFile = [[NSBundle mainBundle] pathForResource: @ "hcpie" OfType: @ "HTML" ]; NSString * htmlText = [NSString stringWithContentsOfFile: pathOfFile: NSUTF8StringEncoding : ];

NSURL * baseURL = [NSURL fileURLWithPath: pathOfFile];

[chart1 loadHTMLString: htmlText baseURL: baseURL];

[super viewDidLoad];

}

+5
3

: -

1) html html- , http://www.highcharts.com/download

2) , html .js : - <script src="http://code.highcharts.com/highcharts.js"></script>

, <script src="highcharts.js"></script> , .js .

3) NSString *htmlFile = [[NSBundle mainBundle] pathForResource:@"graph" ofType:@"html"];
   NSString* htmlString = [NSString stringWithContentsOfFile:htmlFile encoding:NSUTF8StringEncoding error:nil];
   [obj loadHTMLString:htmlString baseURL:nil];  // Webview *obj;

, . .

+6

HighChart.

loadHTMLString. baseURL. , - baseURL:

NSString *htmlFile = [[NSBundle mainBundle] pathForResource:url ofType:@"html"];
NSString* htmlString = [NSString stringWithContentsOfFile:htmlFile encoding:NSUTF8StringEncoding error:nil];

NSURL *baseURL = [NSURL fileURLWithPath:htmlFile];

[webView loadHTMLString:htmlString baseURL:baseURL];
+1

Useful code for calling .html in a UIWebView.

-(void)viewDidLoad
   {
     NSString *pathOfFile = [[NSBundle mainBundle]  pathForResource:@"chart" ofType:@"html"]; 

     NSString *htmlText =[NSString stringWithContentsOfFile:pathOfFile encoding:NSUTF8StringEncoding error:nil];

     NSURL *baseURL = [NSURL fileURLWithPath:pathOfFile];

    [UIWebView loadHTMLString: htmlText baseURL:baseURL];
   }
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