Arrays 查找滚动视图的索引

我有一个显示数组项的水平滚动视图

如何读取用户长按滚动视图的索引

使用.onLongPress手势{“要执行的操作”}如何读取要在函数中传递的索引以对项目进行挖掘

ScrollView(.horizontal, content: {
                        HStack(spacing: 100) {
                            ForEach(post, id: \.self){ item in


                                ZStack {
                                    Rectangle().foregroundColor(.blue).frame(width: 190, height: 170, alignment: .center)
                                    Text(item)

                                }.onTapGesture {
                                    self.temp = item


                                }

                                .onLongPressGesture {
                                    // find index
                                    //perform delate at index
                                    //pass the index to the function delate
                                    self.delate(index: 0)
                                }

                            }
                            }

                        .padding(.leading, 10)
                    })

如果我手动写入索引0，delate工作正常，但我希望通过用户长按的索引。 感谢您的帮助。

试试这个：（更好的是，您不必使用索引，只需使用项目本身即可）

---

我认为正确的方法是在开始时获取索引，而不是在ViewBuilder中：

   ForEach(Array(post.enumerated()), id: \.element){ (index, element) in
    ....
    }

完整视图如下所示：

struct ScrollViewHStackView: View{

@State private var post = ["1","2","3","4","5"]
@State private  var temp : String = ""

func delete(index: Int){
 self.post.remove(at: index)
}

var body: some View {

 ScrollView(.horizontal, content: {
//HStack(spacing: 100) {
    HStack{
     ForEach(Array(post.enumerated()), id: \.element){ (index, element) in


        ZStack {
            Rectangle().foregroundColor(.blue).frame(width: 190, height: 170, alignment: .center)
            Text(element)

            }.onTapGesture {
            self.temp = element
            }

        .onLongPressGesture {


            // find index
            //perform delate at index
            //pass the index to the function delate
            self.delete(index: index)
        }

    }}
   // }

    .padding(.leading, 10)
    })}}

struct ScrollViewHStackView: View{

@State private var post = ["1","2","3","4","5"]
@State private  var temp : String = ""

func delete(index: Int){
 self.post.remove(at: index)
}

var body: some View {

 ScrollView(.horizontal, content: {
//HStack(spacing: 100) {
    HStack{
     ForEach(Array(post.enumerated()), id: \.element){ (index, element) in


        ZStack {
            Rectangle().foregroundColor(.blue).frame(width: 190, height: 170, alignment: .center)
            Text(element)

            }.onTapGesture {
            self.temp = element
            }

        .onLongPressGesture {


            // find index
            //perform delate at index
            //pass the index to the function delate
            self.delete(index: index)
        }

    }}
   // }

    .padding(.leading, 10)
    })}}