您好我正在創建一個組件,該組件需要考慮其操作的陣列。
我創建了一個模型來顯示這樣的陣列
struct FeaturedWorksModel: Identifiable {
var id = UUID()
var image: String
var title: String
}
var featuredWorksItems: [FeaturedWorksModel] = [
FeaturedWorksModel(image: "slider1", title: "TAGLIO CREATIVO"),
FeaturedWorksModel(image: "slider4", title: "LOREM IPSUM"),
FeaturedWorksModel(image: "slider3", title: "NEQUE EST DOLOR"),
FeaturedWorksModel(image: "slider2", title: "CONSECTETUR, INTEGER ERAT AUGUE ")
]
現在我的組件也可以與其他陣列一起使用,我想知道如何在組件初始化引數中定義一個通用陣列,以便重用組件,甚至參考我目前使用的陣列以外的陣列
這是我正在使用的組件,我必須將參考陣列傳遞給它才能作業
struct SmoothPager: View {
@Binding var offset: CGPoint
var body: some View {
HStack(spacing: 10) {
ForEach(featuredWorksItems.indices) { works in
Capsule()
.fill(getIndex() == works ? .white : .gray)
.frame(width: getIndex() == works ? 15 : 7, height: 7)
}
}
.overlay(
Capsule()
.fill(.white)
.frame(width: 15, height: 7)
.offset(x: getOffset())
, alignment: .leading
)
}
func getIndex()-> Int {
let index = Int(round(Double(offset.x / screen.width)))
return index
}
func getOffset()-> CGFloat {
let progress = offset.x / screen.width
return 17 * progress
}
}
在這種情況下,我正在使用featuredWorksItems.indices,但我想讓組件也可以與其他類似的陣列一起使用。在此結構中傳遞通用陣列引數的最佳方法是什么?
uj5u.com熱心網友回復:
你的意思是像
struct SmoothPager<Element: Identifiable>: View {
@Binding private var offset: CGPoint
private let elements: [Element]
init(elements: [Element], offset: Binding<CGPoint>) {
self.elements = elements
self._offset = offset
}
var body: some View {
HStack(spacing: 10) {
ForEach(elements.indices) { works in
Capsule()
.fill(getIndex() == works ? .white : .gray)
.frame(width: getIndex() == works ? 15 : 7, height: 7)
}
}
.overlay(
Capsule()
.fill(.white)
.frame(width: 15, height: 7)
.offset(x: getOffset())
, alignment: .leading
)
}
func getIndex()-> Int {
let index = Int(round(Double(offset.x / UIScreen.main.bounds.width)))
return index
}
func getOffset()-> CGFloat {
let progress = offset.x / UIScreen.main.bounds.width
return 17 * progress
}
}
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