Show info dialog

public static void showInfoDialog(Context context, String text) {

        AlertDialog.Builder builder = new AlertDialog.Builder(context);
        builder.setMessage(text)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.dismiss();
                    }
                });
        Dialog dialog = builder.create();
        dialog.show();
    }