How to perform a switch statement on a click event

Hi, I’m completely new to Ionic and have got stuck at the switch statement with a button.
What I want to happen is to save a selection from a radio group on a settings page and then launch a page based on that selection from a button click on the home page.
The app takes a news feed from 3 different sources and the user can select which one through a radio group on the settings page.
At the moment I have 3 different buttons set up but I want to have one only and then the user can choose which page loads when they click the button.




I want to put the above code in a switch statement but each time I get an error so any help at all would be greatly appreciated

The radio group comes from the SettingsPage and is coded like this

<ion-list radio-group [(ngModel)]="newsSources">
            <ion-radio value="Reuters1"></ion-radio>
            <ion-label>National Geographic</ion-label>
            <ion-radio value="National Geographic1"></ion-radio>

              <ion-label>BBC Sport</ion-label>
              <ion-radio value="BBC Sport1"></ion-radio>

maybe you can use @ViewChild to get a reference to a radio.

Or maybe use @ViewChgildren to get reference to all radios.

At the lifecyle ngAfterViewInit() or later is the reference avialable and can used in have the reference and could use it or any other tutorial

Maybe you can bind a property and watch if it changes.

Or maybe…

Best regards, anna-liebt.