public static class RegisterDialogFragment extends DialogFragment {
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState){
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        LayoutInflater inflater = getActivity().getLayoutInflater();
        View v = inflater.inflate(R.layout.register_layout,null);
        final EditText retUsername = (EditText) v.findViewById(R.id.rusername);
        final EditText retPassword = (EditText)v.findViewById(R.id.rpassword);
        final EditText retCredits = (EditText)v.findViewById(R.id.rcredits);
        builder.setView(v).setPositiveButton(R.string.register,
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        String username, password, credits;

                        username = retUsername.getText().toString();
                        password = retPassword.getText().toString();
                        credits = retCredits.getText().toString();
                        String msg;

                        if((username.equalsIgnoreCase(""))){
                            msg = "Username Taken, Please input another one";
                        }
                        else{
                            doAdd();
                            msg = "User Created";
                            slotmachine();
                        }
                        Toast.makeText(context,msg,Toast.LENGTH_SHORT).show();
                    }


                })
                .setNegativeButton(R.string.exit,new DialogInterface.OnClickListener(){

                            @Override
                            public void onClick(DialogInterface dialog, int which) {


                            }
                        }

                );
        return builder.create();

    }

}

public void doAdd(View v){
    DBase db = new DBase(this);
    EditText etrusername = (EditText) findViewById(R.id.rusername);
    EditText etrpassword = (EditText) findViewById(R.id.rpassword);
    EditText etrcredits = (EditText) findViewById(R.id.rcredits);
    db.open();
    db.add(etrusername.toString(),Integer.parseInt(etrpassword.toString()),Integer.parseInt(etrcredits.toString()));
    db.close();
}