android returning function through JavascriptInterface

Question

I'm trying to return a function through JavascriptInterface but am getting an error:

Cannot refer to a non-final variable funct inside an inner class defined in a different method

here is the code:

         public void androidFieldPrompt(String title, String msg, String funct) {
             final EditText input = new EditText(MainActivity.this);  
             AlertDialog.Builder alert = new AlertDialog.Builder(MainActivity.this);                 
             alert.setTitle(title);  
             alert.setMessage(msg);  
             alert.setView(input);
             alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {  
                public void onClick(DialogInterface dialog, int whichButton) {  
                    String value = input.getText().toString();
                    webView.loadUrl("javascript:window."+funct+"('"+value+"')");
                    return;                  
                   }  
                 });   
            alert.setNegativeButton("CANCEL", null);
            alert.show();            
         }

Answer 1

The error says it all. The variable funct is not available in the scope of the anonymous event handler class:

That should do the trick:

 public void androidFieldPrompt(String title, String msg, final String funct) {
         final EditText input = new EditText(MainActivity.this);  
         AlertDialog.Builder alert = new AlertDialog.Builder(MainActivity.this);                 
         alert.setTitle(title);  
         alert.setMessage(msg);  
         alert.setView(input);
         alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {  
            public void onClick(DialogInterface dialog, int whichButton) {  
                String value = input.getText().toString();
                webView.loadUrl("javascript:window."+funct+"('"+value+"')");
                return;                  
               }  
             });   
        alert.setNegativeButton("CANCEL", null);
        alert.show();            
     }