[英]How to use Foreach on view in SwiftUI?
I'm developing my first iOS App, using Xcode 11.3 and Swift5.我正在开发我的第一个 iOS 应用程序,使用 Xcode 11.3 和 Swift5。
But I was stuck in using ForEach on view.但我一直坚持在视图中使用 ForEach。
I want to put certain struct
in ZStack using Foreach but still get errors.我想使用 Foreach 将某些
struct
放在 ZStack 中,但仍然会出错。
Error : Unable to infer complex closure return type; add explicit type to disambiguate
I don't know how to solve this.我不知道如何解决这个问题。 Can you help me?
你能帮助我吗?
/* Struct I want to put in */
struct Verses: Identifiable{
var id: Int
var verse : Int
}
/* I want to load all values from struct using foreach in view. */
ZStack {
ForEach(controller.verses) { w in <- Here is where I get error.
Rectangle()
.foregroundColor(Color.white)
.cornerRadius(28)
.opacity(0.4)
.offset(x:0, y:68)
.frame(width:290, height:280)
CardView(date: w.date)
.gesture(DragGesture()
.onChanged({ (value) in
......
ForEach
row must be represented by single View, so you need something like the following (still I'm not sure in type of container, but just for example) ForEach
行必须由单个视图表示,因此您需要类似以下内容(我仍然不确定容器的类型,但仅作为示例)
ForEach(controller.verses) { w in
ZStack {
Rectangle()
.foregroundColor(Color.white)
.cornerRadius(28)
.opacity(0.4)
.offset(x:0, y:68)
.frame(width:290, height:280)
CardView(date: w.date)
.gesture(DragGesture()
.onChanged({ (value) in
...
}
}
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