Want to create your first UI with UI Toolkit? Use this basic UI Toolkit workflow example to get started.
Note: For demonstration purpose, this guide describes how to add UI controls for the Editor UI. However, the instructions on adding UI controls to a UI Document also apply to runtime UI. For more information, see Get started with runtime UI.
If you perform a specific task often, you can use UI Toolkit to create a dedicated UI for it. For example you can create a custom Editor window. The example demonstrates how to create a custom Editor window and add UI controls into your custom Editor window with UI Builder, UXML, and C# script.
이 예시에서 생성한 완성된 파일은 GitHub 저장소에서 확인할 수 있습니다.
MyCustomEditor
.이렇게 하면 두 개의 레이블이 있는 커스텀 에디터 창이 생성됩니다. 메뉴(Window > UI Toolkit > MyCustomEditor)에서 에디터 창을 열 수 있습니다. Asset/Editor
폴더에서 소스 파일을 찾을 수 있습니다.
다음과 같은 방법으로 창에 UI 컨트롤을 추가할 수 있습니다.
You can use any of these methods individually, or combine. The following examples create three sets of labels, buttons, and toggles with a combination of these methods.
To visually add UI controls to your window, use UI Builder. The following steps add a button and a toggle into your custom Editor window in addition to the default label.
Editor
폴더에서 MyCustomEditor.uxml
을 더블 클릭하여 UI 빌더를 엽니다.These controls were created in UI Builder
in the Text field.This is button1
in the Text field.button1
in the Name field.Number?
in the Label field.toggle1
in the Name field.If you prefer to define your UI in a text file, you can edit the UXML to add the UI controls. The following steps add another set of label, button, and toggle into your window.
Editor
폴더에서 Assets > Create > UI Toolkit > UI Document를 클릭하여 MyCustomEditor_UXML.uxml
이라는 UXML 파일을 만듭니다.
Click the arrow on MyCustomEditor_UXML.uxml
in the Project window.
Double-click inlineStyle
to open MyCustomEditor_UXML.uxml
in a text editor.
Replace the contents of MyCustomEditor_UXML.uxml
with the following:
<?xml version="1.0" encoding="utf-8"?>
<engine:UXML
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:engine="UnityEngine.UIElements"
xmlns:editor="UnityEditor.UIElements"
xsi:noNamespaceSchemaLocation="../../UIElementsSchema/UIElements.xsd"
>
<engine:Label text="These controls were created with UXML." />
<engine:Button text="This is button2" name="button2"/>
<engine:Toggle label="Number?" name="toggle2"/>
</engine:UXML>
MyCustomEditor.cs
를 엽니다.
m_UXMLTree
라는 프라이빗 VisualTreeAsset
필드를 MyCustomEditor
클래스에 추가합니다. 그 위에 [SerializeField]
속성을 부여합니다.
[SerializeField]
private VisualTreeAsset m_UXMLTree;
Add the following code to the end of CreateGUI()
.
root.Add(m_UXMLTree.Instantiate());
프로젝트 창에서 MyCustomEditor.cs
를 선택합니다.
MyCustomEditor_UXML.uxml
을 프로젝트 창에서 Inspector의 UXML Tree 필드로 드래그합니다. 이렇게 하면 UXML을 시각적 트리에 할당하게 됩니다.
Select Window > UI Toolkit > MyCustomEditor. This opens your custom Editor window with three labels, two buttons, and two toggles.
If you prefer coding, you can add UI Controls to your window with a C# script. The following steps add another set of label, button, and toggle into your window.
MyCustomEditor.cs
를 엽니다.
Unity는 기본 UI 컨트롤(예: 레이블, 버튼, 토글 등)에 UnityEngine.UIElements
를 사용합니다. UI 컨트롤을 사용하여 작업하려는 경우 다음 선언이 아직 없다면 반드시 추가해야 합니다.
using UnityEngine.UIElements;
기존 레이블의 텍스트를 "Hello World! From C#"
에서 "These controls were created using C# code."
로 변경합니다.
EditorWindow 클래스에는 rootVisualElement
라는 프로퍼티가 있습니다. UI 컨트롤을 창에 추가하려면 먼저 몇 가지 속성으로 요소 클래스를 인스턴스화한 다음 rootVisualElement
의 Add
메서드를 사용합니다.
완성된 CreateGUI()
메서드는 다음과 같이 작성되어야 합니다.
public void CreateGUI()
{
// Each editor window contains a root VisualElement object
VisualElement root = rootVisualElement;
// VisualElements objects can contain other VisualElements following a tree hierarchy.
Label label = new Label("These controls were created using C# code.");
root.Add(label);
Button button = new Button();
button.name = "button3";
button.text = "This is button3.";
root.Add(button);
Toggle toggle = new Toggle();
toggle.name = "toggle3";
toggle.label = "Number?";
root.Add(toggle);
// Import UXML
var visualTree = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/Editor/MyCustomEditor.uxml");
VisualElement labelFromUXML = visualTree.Instantiate();
root.Add(labelFromUXML);
root.Add(m_UXMLTree.Instantiate());
}
Select Window > UI Toolkit > MyCustomEditor. This opens your custom Editor window with three labels, three buttons, and three toggles.
버튼을 클릭하고 토글을 선택하거나 선택을 취소하면 UI 컨트롤이 일부 작업을 수행하도록 UI 컨트롤에 대한 이벤트 핸들러를 설정할 수 있습니다.
In this example, set up event handlers that:
You finished MyCustomEditor.cs
looks like the following:
using UnityEditor;
using UnityEngine;
using UnityEngine.UIElements;
public class MyCustomEditor : EditorWindow
{
[MenuItem("Window/UI Toolkit/MyCustomEditor")]
public static void ShowExample()
{
MyCustomEditor wnd = GetWindow<MyCustomEditor>();
wnd.titleContent = new GUIContent("MyCustomEditor");
}
[SerializeField]
private VisualTreeAsset m_UXMLTree;
private int m_ClickCount = 0;
private const string m_ButtonPrefix = "button";
public void CreateGUI()
{
// Each editor window contains a root VisualElement object
VisualElement root = rootVisualElement;
// VisualElements objects can contain other VisualElement following a tree hierarchy.
Label label = new Label("These controls were created using C# code.");
root.Add(label);
Button button = new Button();
button.name = "button3";
button.text = "This is button3.";
root.Add(button);
Toggle toggle = new Toggle();
toggle.name = "toggle3";
toggle.label = "Number?";
root.Add(toggle);
// Import UXML
var visualTree = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/Editor/MyCustomEditor.uxml");
VisualElement labelFromUXML = visualTree.Instantiate();
root.Add(labelFromUXML);
root.Add(m_UXMLTree.Instantiate());
//Call the event handler
SetupButtonHandler();
}
//Functions as the event handlers for your button click and number counts
private void SetupButtonHandler()
{
VisualElement root = rootVisualElement;
var buttons = root.Query<Button>();
buttons.ForEach(RegisterHandler);
}
private void RegisterHandler(Button button)
{
button.RegisterCallback<ClickEvent>(PrintClickMessage);
}
private void PrintClickMessage(ClickEvent evt)
{
VisualElement root = rootVisualElement;
++m_ClickCount;
//Because of the names we gave the buttons and toggles, we can use the
//button name to find the toggle name.
Button button = evt.currentTarget as Button;
string buttonNumber = button.name.Substring(m_ButtonPrefix.Length);
string toggleName = "toggle" + buttonNumber;
Toggle toggle = root.Q<Toggle>(toggleName);
Debug.Log("Button was clicked!" +
(toggle.value ? " Count: " + m_ClickCount : ""));
}
}
To try the example, select Window > UI Toolkit > MyCustomEditor.