Spinning Loader

1//2// Two concentric arcs that alternate expand/collapse phases while rotating.3// Outer arc has a gradient stroke; inner arc is semi-transparent.4// Inspired by the SpinningView pattern from SwiftUI-Animations.5​6struct SpinningLoader: View {7    @State private var outerEnd: CGFloat = 0.78    @State private var innerEnd: CGFloat = 0.159    @State private var outerAngle: Double = 010    @State private var innerAngle: Double = 011​12    private let outerSize: CGFloat = 6813    private let innerSize: CGFloat = 4414​15    var body: some View {16        ZStack {17            Circle()18                .stroke(.secondary.opacity(0.1), lineWidth: 4)19                .frame(width: outerSize, height: outerSize)20​21​22// ... (click "Show full code" to see more)