AlertDialog box example

String logintatus = WebServiceHelper.authenticateUser(username, password);

System.out.println("<<<<<<<< loginstatus >>>>>>"+logintatus);

if(username.equals("")){

AlertDialog.Builder alertLogout = new AlertDialog.Builder(v.getContext());

alertLogout.setTitle("Login details");

alertLogout.setMessage("Username not specified.");

alertLogout.setPositiveButton("Ok", new DialogInterface.OnClickListener(){

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.dismiss();

}

});

alertLogout.show();

}