SwiftUI--取消安全区限制，使视图填满屏幕

import SwiftUI

struct SwiftUIView: View {
    var body: some View {
        //不可以用frame的另一个方法不然不生效
        Text(/*@START_MENU_TOKEN@*/"Hello, World!"/*@END_MENU_TOKEN@*/)
            .frame(minWidth: 0, idealWidth: 0, maxWidth: .infinity, minHeight: 0, idealHeight: 0, maxHeight: .infinity, alignment: .center)
            .edgesIgnoringSafeArea(.all)
            .background(Color.red)
            
    }
}

struct SwiftUIView_Previews: PreviewProvider {
    static var previews: some View {
        SwiftUIView()
    }
}