💡 SwiftUI Tip: Use @StateObject vs @ObservedObject Correctly

One common mistake in SwiftUI is using @ObservedObject when the view should actually own the object.

✅ Use @StateObject when the view creates and owns the ViewModel.
✅ Use @ObservedObject when the ViewModel is passed from a parent view.

Using @StateObject ensures that the ViewModel is created only once and survives view refreshes, preventing unnecessary API calls and state resets.

Example:

@StateObject private var viewModel = HomeViewModel()

instead of:

@ObservedObject private var viewModel = HomeViewModel()

Understanding this difference can save hours of debugging and improve your app's performance.

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