SwiftUI ScrollView can pull to fresh
One day, when I were writing a scrollview with a SwiftUI, I suddenly wanted to add a drop-down refresh to it, but soon found that it was too difficult...
public struct FreshScrollView<Content>: View where Content : View{ private let content: () -> Content private let action: () -> Void init(@ViewBuilder content: @escaping () -> Content, action: @escaping ()-> Void){ self.content = content self.action = action } @State var startY: Double = 10000 public var body: some View{ ScrollView{ GeometryReader{ geometry in HStack { Spacer() if geometry.frame(in: .global) .minY - startY > 30{ ProgressView() .padding(.top, -30) .animation(.easeInOut) .transition(.move(edge: .top)) .onAppear{ let noti = UIImpactFeedbackGenerator(style: .light) noti.prepare() noti.impactOccurred() action() } } Spacer() } .onAppear { startY = geometry.frame(in:.global).minY } } content() } } } #if DEBUG struct FreshScrollView_Previews: PreviewProvider { static var previews: some View { FreshScrollView { Text("A") Text("B") Text("C") Text("D") } action: { print("text") } } } #endif