public class myWebClient extends WebViewClient
  {
public void onReceivedHttpAuthRequest (WebView view, final HttpAuthHandler handler, String host, String realm)
         {
             Toast.makeText(getApplicationContext(), "AUTH REQUESTED", Toast.LENGTH_SHORT).show();
             super.onReceivedHttpAuthRequest(view, handler, host, realm);

             if(!mWebViewDatabase.hasHttpAuthUsernamePassword())
             {
                // Authentication dialog prompt

                AlertDialog.Builder builder = new AlertDialog.Builder(MyActivity.this);
                builder.setTitle("Sign In");

                LinearLayout layout = new LinearLayout(MyActivity.this);
                layout.setOrientation(LinearLayout.VERTICAL);

                //dialog.setView(layout);

                // Set up the input
                final EditText userName = new EditText(getApplicationContext());
                // Specify the type of input expected; this, for example, sets the input as a password, and will mask the text
                userName.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_NORMAL);
                userName.setHint("user name");
                userName.requestFocus();
                layout.addView(userName);
                //builder.setView(userName);

                final EditText password = new EditText(getApplicationContext());
                // Specify the type of input expected; this, for example, sets the input as a password, and will mask the text
                password.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
                password.setHint("password");
                password.requestFocus();
                layout.addView(password);
                builder.setView(layout);

                // Set up the buttons
                builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        mUserName = userName.getText().toString();
                        mPassword = password.getText().toString();
                        handler.proceed(mUserName, mPassword);
                        Log.d("Authentication", mUserName +"-->"+ mPassword);
                       }
                });
                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.cancel();

                    }
                });

                builder.show();

                 // end of Alert dialog prompt

             }
   }