📦 iScript / designcode-swiftui

📄 RingView.swift · 54 lines
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54//
//  RingView.swift
//  DesignCode
//
//  Created by EDZ on 2020/5/4.
//  Copyright © 2020 ykq. All rights reserved.
//

import SwiftUI

struct RingView: View {
    
    var color1 = #colorLiteral(red: 0.8078431487, green: 0.02745098062, blue: 0.3333333433, alpha: 1)
    var color2 = #colorLiteral(red: 0.3647058904, green: 0.06666667014, blue: 0.9686274529, alpha: 1)
    var width : CGFloat = 88
    var height : CGFloat  = 88
    var percent : CGFloat = 44
    
    @Binding var show : Bool
    
    var body: some View {
        let multiplier = width/44
        let progress = 1 - percent / 100
        
        return ZStack {
            //背景circle
            Circle()
                .stroke(Color.black.opacity(0.1),style: StrokeStyle(lineWidth: 5 * multiplier ))
                .frame(width: width, height: height)
            
            // 百分比circle
            Circle()
                .trim(from: show ?  progress : 1, to: 1)    // 裁剪圆环
                .stroke(LinearGradient(gradient: Gradient(colors: [Color(color1),Color(color2)]), startPoint: .topTrailing, endPoint: .bottomLeading),style:StrokeStyle(lineWidth: 5 * multiplier, lineCap: .round, lineJoin: .round, miterLimit: .infinity, dash: [20,0], dashPhase: 0) )
                .rotationEffect(Angle(degrees: 90))
                .rotation3DEffect(Angle(degrees: 180), axis: (x: 1, y: 0, z: 0))    // 绕x旋转180
                .frame(width: width, height: height)
                .shadow(color: Color(color2).opacity(0.1), radius: 3 * multiplier, x: 0, y: 3 * multiplier)
                //.animation(.easeInOut)    // 动画在父级用,子级的动画会覆盖父级
            
            Text("\(Int(percent))%").font(.system(size: 14 * multiplier)).fontWeight(.bold)
                .onTapGesture {
                    self.show.toggle()
            }
        }
    }
}

struct RingView_Previews: PreviewProvider {
    static var previews: some View {
        RingView(show: .constant(true))
    }
}