Use Toggle to create a conditional UI

This example uses a Toggle to create a conditional UI.

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 window, 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);
               EditorGUIUtility.PingObject(MonoScript.FromScriptableObject(window));
           }
           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.

其他资源

• Toggle