在UIWebView上加载JavaScript

Question

I have a javascript with me and just trying to load that on my UIWebView ,Can't figure out what i am doing wrong. Here is my Script:

<script type='text/javascript'>(function () { var done = false; var script = document.createElement('script'); script.async = true; script.type = 'text/javascript'; script.src = 'https://app.purechat.com/VisitorWidget/WidgetScript'; document.getElementsByTagName('HEAD').item(0).appendChild(script); script.onreadystatechange = script.onload = function (e) { if (!done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete')) { var w = new PCWidget({ c: 'ea5935c8-1f44-4172-bcd7-18d6f316ad75', f: true }); done = true; } }; })();</script>

And Here is my code:

NSString *temp =@"<script type='text/javascript'>(function () { var done = false; var script = document.createElement('script'); script.async = true; script.type = 'text/javascript'; script.src = 'https://app.purechat.com/VisitorWidget/WidgetScript'; document.getElementsByTagName('HEAD').item(0).appendChild(script); script.onreadystatechange = script.onload = function (e) { if (!done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete')) { var w = new PCWidget({ c: 'ea5935c8-1f44-4172-bcd7-18d6f316ad75', f: true }); done = true; } }; })();</script>";

[_mainWebView stringByEvaluatingJavaScriptFromString:temp];

Here is my blank webView ...:(

Any help will be much appriciated,Thanks i advance....!

Answer 1

You do not need to include the script tag in the javascript. stringByEvaluatingJavaScriptFromString tries to execute the given javascript string directly in the webview.

Try it this way:

NSString *temp =@"(function () { var done = false; var script = document.createElement('script'); script.async = true; script.type = 'text/javascript'; script.src = 'https://app.purechat.com/VisitorWidget/WidgetScript'; document.getElementsByTagName('HEAD').item(0).appendChild(script); script.onreadystatechange = script.onload = function (e) { if (!done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete')) { var w = new PCWidget({ c: 'ea5935c8-1f44-4172-bcd7-18d6f316ad75', f: true }); done = true; } }; })();";