Use Toggle to create a conditional UI

This example uses a Toggle to create a conditional UI(User Interface) Allows a user to interact with your application. Unity currently supports three UI systems. More info
See in Glossary.

Example overview

The example creates a custom Editor window with two toggles. You can use the toggles to do the following:

• Show or hide a label
• Activate or deactivate a button

You can find the completed files that this example creates in this GitHub repository.

Create the example

To create the example:

1. Create a Unity project with any template.

2. In the Project windowA window that shows the contents of your Assets folder (Project tab) More info
   See in Glossary, create a folder named Editor.

3. In the Editor folder, create a C# script file named ToggleExample with the following content:

   using UnityEngine;
   using UnityEditor;
   using UnityEngine.UIElements;
   namespace Samples.Editor.Controls
   {
       public class ToggleExample : EditorWindow
       {
           private Toggle showToggle;
           private Toggle activateToggle;
           private Label labelToShow;
           private Button buttonToActivate;
           [MenuItem("Window/ToggleExample")]
           public static void OpenWindow()
           {
               var window = GetWindow<ToggleExample>("Controls: Toggle Sample");
               window.minSize = new Vector2(200, 170);
           }
           public void CreateGUI()
           {
               showToggle = new Toggle("Show label")
               {
                   value = true
               };
               activateToggle = new Toggle("Active button")
               {
                   value = true
               };
               labelToShow = new Label("This label is shown when the above toggle is set to On");
               buttonToActivate = new Button(() => Debug.Log("Button pressed!"))
               {
                   text = "Active if above toggle is On"
               };
               rootVisualElement.Add(showToggle);
               rootVisualElement.Add(labelToShow);
               rootVisualElement.Add(activateToggle);
               rootVisualElement.Add(buttonToActivate);
               showToggle.RegisterValueChangedCallback(evt => labelToShow.visible = evt.newValue);
               activateToggle.RegisterValueChangedCallback(evt => buttonToActivate.SetEnabled(evt.newValue));
           }
       }
   }
   

4. To try the example, from the menu, select Window > ToggleExample.

Additional resources

• ToggleA checkbox that allows the user to switch an option on or off. ToggleA checkbox that allows the user to switch an option on or off. More info
  See in Glossary