Monodroid JavaScript Interface

Question

Monodroid does not yet natively support JavaScriptInterface with WebView.

I'm looking for an example .java file that can be used with this workaround.

IntPtr JavaScriptInterface_Class = JNIEnv.FindClass ("the/package/for/JavaScriptInterface");
IntPtr JavaScriptInterface_ctor = JNIEnv.GetMethodID (JavaScriptInterface_Class, "<init>", "()V");
IntPtr instance = JNIEnv.NewObject (JavaScriptInterface_Class, JavaScriptInterface_ctor);

appView.AddJavascriptInterface (new Java.Lang.Object (instance), "Android");

jonp · Accepted Answer · 2011-10-24 16:49:58Z

2

You could use a custom .java such as:

// TODO: use an actually valid package name. :-)
package the.package.for;

public class JavaScriptInterface {
    // The JNI in the original question uses a default constructor.
    // Either provide one explicitly or use the implicit one...
    public JavaScriptInterface ()
    {
    }

    // TODO: add any methods you want invokable from JavaScript here.
}

Don't forget to set the Build action for your .java file to to AndroidJavaSource.

answered Oct 24, 2011 at 16:49

jonp

13.6k5 gold badges47 silver badges61 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

l4nk4b3l · Accepted Answer · 2012-05-30 17:48:55Z

1

I know that this thread is already a bit old. But i found this when was looking for the same and here is the solution how you can use c# methods

public class AndroidInterface : Java.Lang.Object
{
        [Export]
        public void Save(string text)
        {

        }
}

AndroidInterface androidInterace = new AndroidInterface();
webView.AddJavascriptInterface(androidInterface, "Android");

answered May 30, 2012 at 17:48

l4nk4b3l

111 bronze badge

Collectives™ on Stack Overflow

Monodroid JavaScript Interface

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related