在swiftUI中对scrollView的研究中寻求帮助。我有一个滚动视图，该滚动视图显示一个数组的值，当用户点击滚动视图的其他项时，我希望在下面的textField上显示该数组的值。
如何将数组值传递给文本字段？
import SwiftUI
struct ContentView: View {
let post = ["TEST1 ","Test 2" , "Test 3","TEST4 ","Test 5" , "Test 6"]
var temp = ""
var body: some View {
VStack {
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 {
// pass the value off Scroll View to the text
debugPrint("\(item)")
}
}
}
.padding(.leading, 10)
})
.frame(height: 190)
Spacer()
Text("dispaly here array value selected")
Spacer()
}
}
}
谢谢你帮我...
这里的诀窍是需要@State temp在视图中分配给@State值时。
struct ContentView: View {
let post = ["TEST1 ","Test 2" , "Test 3","TEST4 ","Test 5" , "Test 6"]
@State private var temp = ""
var body: some View {
VStack {
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 {
// pass the value off Scroll View to the text
self.temp = item
}
}
}
.padding(.leading, 10)
})
.frame(height: 190)
Spacer()
Text( self.temp)
Spacer()
}
}
}
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