Get javascript var from webview to android var

Question

I am trying get a var from a webview but I only can modify like this:

browser.loadUrl("javascript:var x = document.getElementById('login').value = 'something';");

but I need get any js var like this :

String myAndroidvar = browser.loadUrl("javascript:var x = document.getElementById('login').value");

but this syntax is incorrect, I need the correct method.

Use JSoup library for web scraping. I think it's the only way. — capt.swag
– capt.swag, Commented Jun 8, 2015 at 16:01

Erik Duisters · Accepted Answer · 2015-06-08 17:24:12Z

1

You have to add a javaScriptInterface to you webview. See this blog for a decent description. You can also get stuff from javascript by calling an interface function you defined using:

web.loadUrl("javascript: window.jsinterface.getValue(document.getElementById('login').value)");

answered Jun 8, 2015 at 17:24

Erik Duisters

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