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Updated for Xcode 14.2
New in iOS 16
Some SF Symbols support variable coloring, which means they can have different parts filled based on a fraction between 0 and 1.
For example, this shows a Wi-Fi icon that is partly filled in:
Image(systemName: "wifi", variableValue: 0.5)
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This value can change over time based on whatever state you’re using in your code. For example, we could use a slider to change various icons according to a local property:
struct ContentView: View {
@State private var value = 0.0
var body: some View {
VStack {
HStack {
Image(systemName: "aqi.low", variableValue: value)
Image(systemName: "wifi", variableValue: value)
Image(systemName: "chart.bar.fill", variableValue: value)
Image(systemName: "waveform", variableValue: value)
}
Slider(value: $value)
}
.font(.system(size: 72))
.foregroundColor(.blue)
.padding()
}
}
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