Android viewGroup issue

Very new to Automated testing.
Need the SWITCH option to be selected.
Struggling to write the code for it (Android).

Build failed due to this pop-up. "Switch" option needs to be selected.

CODE:

main.page.notification.icon.after.login.android.optional = xpath: (//android.view.ViewGroup[3])[1]

go.click.switch.option = xpath: //*[@text='SWITCH']

ELSE Statement:

private String switchBtn = getElDef(strStartsWith + ".click.switch.option");




@Given("^I navigate to Notification Center after login$")
    public void iNavigateToNotificationCenterAfterLogin() throws Exception {
        if (elementExists(notificationIconAfterLogin)) {
            loopClickUntilFound(notificationIconAfterLogin, notificationHeader);
        } else {
            loopClickUntilFound(notificationIconAfterLoginAndroidOptional, switchBtn);
        }
        waitFor(3);
        screenshot(); // Cap screen in notification center
    }

My "switchBtn" just doesn't work. Need help to fix the code.
where am I going wrong???