使用swiftui自定义圆形进度条实现loading

实现的代码如下：

//
//  LoadingView.swift
//  SwiftBook
//
//  Created by Song on 2024/8/2.
//import SwiftUIstruct LoadingView: View {@State var process = 0.5var body: some View {VStack(spacing: 20) {ZStack {Circle().stroke(.gray.opacity(0.3), lineWidth: 18).frame(width: 200, height: 200)Circle().trim(from: 0, to: process).stroke(style: .init(lineWidth: 8, lineCap: .round)).foregroundColor(.green).frame(width: 200, height: 200).rotationEffect(.degrees(-90))}Slider(value: $process, in: 0 ... 1,label: {}, minimumValueLabel: {Text("最小")}, maximumValueLabel: {Text("最大")}).padding(.top, 50)}.padding()}
}#Preview {LoadingView()
}