---
title: "transaction(value:_:)"
framework: swiftui
role: symbol
role_heading: Instance Method
path: "swiftui/view/transaction(value:_:)"
---

# transaction(value:_:)

Applies the given transaction mutation function to all animations used within the view.

## Declaration

```swift
nonisolated func transaction(value: some Equatable, _ transform: @escaping (inout Transaction) -> Void) -> some View

```

## Parameters

- `value`: A value to monitor for changes.
- `transform`: The transformation to apply to transactions within this view.

## Return Value

Return Value A view that wraps this view and applies a transformation to all transactions used within the view whenever value changes.

## Discussion

Discussion Use this modifier to change or replace the animation used in a view. Consider three identical views controlled by a button that changes all three simultaneously: The first view animates rotating the “Rotation” Text view by 360 degrees. The second uses the transaction(_:) modifier to change the animation by adding a delay to the start of the animation by two seconds and then increases the rotational speed of the “Rotation\nModified” Text view animation by a factor of 2. The third uses the transaction(_:) modifier to disable animations affecting the “Animation\nReplaced” Text view. The following code implements these animations: struct TransactionExample: View {     @State var flag = false

var body: some View {         VStack(spacing: 50) {             HStack(spacing: 30) {                 Text("Rotation")                     .rotationEffect(Angle(degrees: flag ? 360 : 0))

Text("Rotation\nModified")                     .rotationEffect(Angle(degrees: flag ? 360 : 0))                     .transaction(value: flag) { t in                         t.animation =                             t.animation?.delay(2.0).speed(2)                     }

Text("Animation\nReplaced")                     .rotationEffect(Angle(degrees: flag ? 360 : 0))                     .transaction(value: flag) { t in                         t.disableAnimations = true                     }             }

Button("Animate") {                 withAnimation(.easeIn(duration: 2.0)) {                     flag.toggle()                 }             }         }     } }

## See Also

### Moving an animation to another view

- [withTransaction(_:_:)](swiftui/withtransaction(_:_:).md)
- [withTransaction(_:_:_:)](swiftui/withtransaction(_:_:_:).md)
- [transaction(_:)](swiftui/view/transaction(_:).md)
- [transaction(_:body:)](swiftui/view/transaction(_:body:).md)
- [Transaction](swiftui/transaction.md)
- [Entry()](swiftui/entry().md)
- [TransactionKey](swiftui/transactionkey.md)