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import SwiftUI
/// An animated globe icon that cycles through different world regions
///
/// Displays a spinning globe effect by cycling through SF Symbol images showing
/// different parts of the world. Useful for indicating network activity or global content.
///
/// Example:
/// ```swift
/// SpinningGlobeView()
/// .frame(width: 16, height: 16)
///
/// SpinningGlobeView(frameDelay: 0.5)
/// .frame(width: 24, height: 24)
/// ```
struct SpinningGlobeView: View {
/// Delay between frames in seconds (default: 0.3)
let frameDelay: TimeInterval
/// SF Symbol names for each frame of the globe animation
private let globeFrames = [
"globe.americas.fill",
"globe.europe.africa.fill",
"globe.central.south.asia.fill",
"globe.asia.australia.fill"
]
@State private var currentFrameIndex = 0
@State private var animationTask: Task<Void, Never>?
init(frameDelay: TimeInterval = 0.25) {
self.frameDelay = frameDelay
}
var body: some View {
Image(systemName: globeFrames[currentFrameIndex])
.onAppear {
startAnimation()
}
.onDisappear {
stopAnimation()
}
}
private func startAnimation() {
animationTask = Task {
while !Task.isCancelled {
try? await Task.sleep(nanoseconds: UInt64(frameDelay * 1_000_000_000))
guard !Task.isCancelled else { break }
currentFrameIndex = (currentFrameIndex + 1) % globeFrames.count
}
}
}
private func stopAnimation() {
animationTask?.cancel()
animationTask = nil
}
}
#Preview {
VStack(spacing: 20) {
HStack(spacing: 20) {
SpinningGlobeView()
.frame(width: 12, height: 12)
SpinningGlobeView()
.frame(width: 16, height: 16)
SpinningGlobeView()
.frame(width: 24, height: 24)
}
Text("Different frame delays:")
HStack(spacing: 20) {
SpinningGlobeView(frameDelay: 0.1)
.frame(width: 16, height: 16)
SpinningGlobeView(frameDelay: 0.3)
.frame(width: 16, height: 16)
SpinningGlobeView(frameDelay: 0.6)
.frame(width: 16, height: 16)
}
}
.padding()
}
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