Safe Area Insets

I'm assuming you're using SwiftUI since that's what you tagged the question with. If so, your views should automatically be placed to fit in the safe area. Using the ignoresSafeArea(_:edges:) modifier, well, ignores the safe area, so expanding to fill the whole screen.

If you want your views to fill the entire space inside of the safe area, you can use a frame modifier like this:

.frame(maxWidth: .infinity, maxHeight: .infinity)

If you explicitly want the top and bottom safe area inset values, then you can wrap your view in a GeometryReader and access the values like this:

GeometryReader { geoProxy in
    let topInset = geoProxy.safeAreaInsets.top
    let bottomInset = geoProxy.safeAreaInsets.bottom
    ...
}