Why don't my @State updates trigger a view refresh?

In SwiftUI, when using @State to manage state, updates to the state variables should trigger a view refresh. If your view is not updating as expected, check the following common issues:

  • Ensure that the @State variable is directly referenced in the body of your view.
  • Check for any conditional logic or view modifiers that might be influencing the refresh behavior.
  • Confirm that the updates to the @State variable are being made on the main thread, especially if you're performing async operations.
  • Look for any usage of @Binding or other state management tools that may prevent the view from re-rendering as expected.

Here’s a simple example illustrating how to use @State properly:

import SwiftUI struct ContentView: View { @State private var count: Int = 0 var body: some View { VStack { Text("Count: \(count)") Button(action: { count += 1 }) { Text("Increment") } } } }

SwiftUI @State view refresh state management Swift updates

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