How can I extract this variable bellow from a website to my android code? I guess it should work using javascript interface but how do I get it?
<script type="text/javascript">
var Ids = "[4161, 104, 121, 202, 1462]";
</script>
And I can't change the code on the website to a method that returns the value.
Any suggestions?
You can use the javascript: scheme in a webview.loadurl call. It will execute the javascript in the webview page.
From there you can make it call a function in your javascript interface.
webview.loadUrl("javascript:Android.getIds(Ids);");
Android being the name space used to declare your javascript interface.
//Add the javascript interface to your web view
this.addJavascriptInterface(new CustomJavaScriptInterface(webViewContext), "Android");
Beware that javascriptinterface only work with primitive types. So you actually can't pass directly an array. Just use the javascript scheme to loop through your array. I see it is not really an array so you should be fine with just :
public class CustomJavaScriptInterface {
Context mContext;
/** Instantiate the interface and set the context */
CustomJavaScriptInterface(Context c) {
mContext = c;
}
/** retrieve the ids */
public void getIds(final String myIds) {
//Do somethings with the Ids
}
}
