Passing a Javascript Variable to Android Activity?

Question

Basically I want get data I already have accessed from javascript and passing it to Java/Android so that I can work with it there.

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Answer 1

You can not access stored javascript variables, you must do it through a function call. You have to call it from javascript in your html page, for example:

TheNameOfYourInterface.setX('value');

TheNameOfYourInterface will be a javascript object when you add the interface to the webview via

YourWebView.addJavascriptInterface(new MyJavaScriptInterface(),"TheNameOfYourInterface");

so you can do the logic on your webview and call the interface when you set the data so the method in the Java side will be called.