SWIFTUI 2, SWIFTUI 3 - MACOS: Why TextField's onCommit closure is always trigger every time I switch to another tab

Question

Created Jun ’21

Replies 1

Boosts 0

Participants 1

My code: I use onCommit closure to be able to perform an action by pressing the Enter key when the TextField is being focused.

import SwiftUI

struct ContentView: View {
  @State private var text = ""

  var body: some View {
    TabView {
      TextField(
        "",
        text: $text,
        onCommit: { print("onCommit") } // I have a problem here
      )
        .tabItem {
          Text("Tab 1")
        }

      Text("Tab 2")
        .tabItem {
          Text("Tab 2")
        }

      Text("Tab 3")
        .tabItem {
          Text("Tab 3")
        }
    }
  }
}

My problem: The onCommit closure is also always triggered when I switch to another tab, making my App perform an unexpected action.
My questions:
1. This is the bug or the feature?
2. Is there any other way to perform an action by pressing Enter key?

Answered by Duong_Thai in 679553022

I have found the solution by following the deprecated message.

Deprecated

Use init(_:text:prompt:) instead. Add the onSubmit(of:_:) view modifier for the onCommit behavior, and onFocus(_:) for the onEditingChanged behavior.

import SwiftUI

struct ContentView: View {
  @State private var text = ""

  var body: some View {
    TabView {
      TextField("", text: $text)
        .onSubmit {               // new api
          print("onCommit")
        }
        .tabItem {
          Text("Tab 1")
        }

      Text("Tab 2")
        .tabItem {
          Text("Tab 2")
        }

      Text("Tab 3")
        .tabItem {
          Text("Tab 3")
        }
    }
  }
}

onSubmit doesn't trigger every time I switch to another tab.

Boost

Answer 1

Duong_Thai OP

Jun ’21

Accepted Answer

I have found the solution by following the deprecated message.

Deprecated

Use init(_:text:prompt:) instead. Add the onSubmit(of:_:) view modifier for the onCommit behavior, and onFocus(_:) for the onEditingChanged behavior.

import SwiftUI

struct ContentView: View {
  @State private var text = ""

  var body: some View {
    TabView {
      TextField("", text: $text)
        .onSubmit {               // new api
          print("onCommit")
        }
        .tabItem {
          Text("Tab 1")
        }

      Text("Tab 2")
        .tabItem {
          Text("Tab 2")
        }

      Text("Tab 3")
        .tabItem {
          Text("Tab 3")
        }
    }
  }
}

onSubmit doesn't trigger every time I switch to another tab.

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