Minimize application

I have an audio player app and would like to prevent the back button from closing it when audio is playing.

If I override OnBackButtonPressed() to return true, nothing happens and the app stays in the foreground. I want it to minimize just like if the Home button was pressed instead. Is this possible?

You might check out the Xamarin Forms Documentaions (i.e Xamarin Forms Application/App Lifecycle, etc.) for this.