Improving multiplatform SwiftUI code

[qupig]

Comments, Questions, Feedback: https://www.jessesquires.com/blog/2023/03/23/improve-multiplatform-swiftui-code/

This approach really makes the code look neat.

But at the same time, we may lose the advantage that #if os() brings to us, that is, the compilation process omits code that is not related to the specific platform.

In your example, #if os() is used to change the self pointer, and all configuration code will be flooded to each platform.

[jessesquires]

Thanks @qupig! 😄

Sure, that's a valid concern in some cases. In that situation, you can also wrap the properties in #if:

#if os(iOS)
private var body_iOS: some View {
    // the body for iOS only
}
#endif 

#if os(macOS)
private var body_macOS: some View {
    // the body for macOS only
}
#endif 

[jessesquires]

It's also worth pointing out that the compiler may (very likely) strip dead symbols also.

So for example, body_macOS (without the #if) might be removed by the compiler when building for iOS.

[github-actions[bot]]

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