Return string from an android method to the html file, from webview

Question

I have seen this article:- Passing data from java class to Web View html

Can we return string from an android function to the html file in the webview of the android application.

Answer 1

You can implement some Java class returning such string:

public class Bar {
  public String foo() {
    return "bla-bla-bla";
  }
}

After that you pass it to addJavascriptInterface method:

webView.addJavascriptInterface(new Bar(), "bar");

Now you have JavaScript object "bar":

alert(bar.foo());