swiftui_listapp_06

.toolbar {
    ToolbarItemGroup(placement: .keyboard) {
        Spacer()

        Button(action: {
            if let currentFavesIndex: Int = dataModel.faves.firstIndex(where: { $0.id == focus }) { // found match on first text field in row
                withAnimation(.easeInOut(duration: 0.3)) {
                    proxy.scrollTo(dataModel.faves[max(currentFavesIndex - 2, 0)].id)
                }
                let previousFave = dataModel.faves[max(currentFavesIndex - 1, 0)]
                DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
                    focus = (currentFavesIndex > 0) ? previousFave.favoriteID : previousFave.id
                }
            } else if let currentFavesIndex: Int = dataModel.faves.firstIndex(where: { $0.favoriteID == focus }) { // found match on second text field in row
                DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
                    focus = dataModel.faves[currentFavesIndex].id
                }
            }
        }) {
            Text("Previous")
                .padding(.horizontal, 5)
        }
        .tint(Color(UIColor.systemGray3))
        .buttonStyle(.borderedProminent)
        .buttonBorderShape(.roundedRectangle)
        .controlSize(.small)

        Button(action: {
            if let currentFavesIndex: Int = dataModel.faves.firstIndex(where: { $0.id == focus }) { // found match on first text field in row
                DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
                    focus = dataModel.faves[currentFavesIndex].favoriteID
                }
            } else if let currentFavesIndex: Int = dataModel.faves.firstIndex(where: { $0.favoriteID == focus }) { // found match on second text field in row
                withAnimation(.easeInOut(duration: 0.3)) {
                    proxy.scrollTo(dataModel.faves[min(currentFavesIndex + 2, dataModel.faves.count - 1)].id)
                }
                let nextFave = dataModel.faves[ min(currentFavesIndex + 1, dataModel.faves.count - 1) ]
                DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
                    focus = (currentFavesIndex < dataModel.faves.count - 1) ? nextFave.id : nextFave.favoriteID
                }
            }
        }) {
            Text("Next")
                .padding(.horizontal, 5)
        }
        .tint(Color(UIColor.systemGray3))
        .buttonStyle(.borderedProminent)
        .buttonBorderShape(.roundedRectangle)
        .controlSize(.small)
        .padding(.horizontal, 20)
    }