PaginationBody.swift

public var body: some View {
  List {
    //1.
    ForEach(items.indices, id: \.self) { index in
      VStack {
        //2.
        self.content(self.items[index])

        //3.
        if self.isLoading && self.isLastItem(index: index) {
          HStack(alignment: .center) {
            //4.
            SpinnerView(isAnimating: self.$isLoading, style: .medium)
          }
        }
      }.onAppear {
        //5.
        self.itemAppears(at: index)
      }
    }
  }
}