Haik Aslanyan
77 lines
2.2 KiB
Swift
77 lines
2.2 KiB
Swift
// MIT License
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// Copyright (c) 2020 Haik Aslanyan
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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import SwiftUI
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struct LoadingPlaceholderView: View {
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@State var fillPoint = Double(0)
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var animation: Animation {
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Animation.linear(duration: 0.8).repeatForever(autoreverses: false)
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}
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var body: some View {
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Ring(fillPoint)
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.stroke(Color.red, lineWidth: 5)
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.frame(width: 100, height: 100, alignment: .center)
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.onAppear {
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withAnimation(self.animation) {
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self.fillPoint = 0.5
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}
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}
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}
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}
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struct LoadingPlaceholderView_Previews: PreviewProvider {
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static var previews: some View {
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LoadingPlaceholderView()
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}
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}
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struct Ring: Shape {
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var fillPoint: Double
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var animatableData: Double {
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get { fillPoint}
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set { fillPoint = newValue }
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}
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func path(in rect: CGRect) -> Path {
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let start = Double(0)
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let end = 360 * fillPoint
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var path = Path()
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path.addArc(center: CGPoint(x: rect.midX, y: rect.midY), radius: rect.width / 2, startAngle: .degrees(start), endAngle: .degrees(end), clockwise: false)
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return path
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}
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init(_ fillPoint: Double) {
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self.fillPoint = fillPoint
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}
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}
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