Android WebView Compile a Form and submit with Javascript

Question

I\'m trying to complete this form :

http://www.lbalberti.it/whatsup.asp?codist=57247

I was able to insert value to the two textbox but the button doesn\'t wo

Answer 1

 @Override
    public void onPageFinished(WebView view, String url) {
        super.onPageFinished(view, url);

        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            view.evaluateJavascript("javascript:document.getElementById('username').value ='" + strUsername + "';javascript:document.getElementById('password').value = '" + strPassword + "';javascript:document.getElementById('loginButton').click();", null);
        } else {
            view.loadUrl("javascript:document.getElementById('username').value = '" + strUsername + "';javascript:document.getElementById('password').value = '" + strPassword + "';javascript:document.getElementById('loginButton').click();");
        }

}