EditorWindow.BeginWindows

Description

标记所有弹出窗口的开始区域。

GUI.Window 在编辑器中的行为与在游戏中略有不同。在游戏中，GUI.Window 会在屏幕上弹出一个窗口。而在编辑器中， GUI.Window 会在其中一个编辑器窗口中显示一个子窗口。Begin/EndWindows 用于确定这些窗口的目标位置。 您需要为 BeginWindows/EndWindows 对中的 GUI.Window 或 GUILayout.Window 执行所有调用。如下所示：


Simple editor Window with a window and a button inside.

using UnityEditor;
using UnityEngine;
using System.Collections;

public class GUIWindowDemo : EditorWindow
{
    // The position of the window
    public Rect windowRect = new Rect(100, 100, 200, 200);
    void OnGUI()
    {
        BeginWindows();

        // All GUI.Window or GUILayout.Window must come inside here
        windowRect = GUILayout.Window(1, windowRect, DoWindow, "Hi There");

        EndWindows();
    }

    // The window function. This works just like ingame GUI.Window
    void DoWindow(int unusedWindowID)
    {
        GUILayout.Button("Hi");
        GUI.DragWindow();
    }

    // Add menu item to show this demo.
    [MenuItem("Test/GUIWindow Demo")]
    static void Init()
    {
        EditorWindow.GetWindow(typeof(GUIWindowDemo));
    }
}

BeginWindows/EndWindows 对的位置决定了弹出窗口的显示位置；所有窗口都会裁剪到 由 GUI.BeginGroup 或 GUI.BeginScrollView 定义的裁剪区域。下面是该情况的一个小示例


Simple editor window with a window and a button inside using scroll bars.

using UnityEditor;
using UnityEngine;
using System.Collections;

public class GUIWindowDemo2 : EditorWindow
{
    // The position of the window
    public Rect windowRect = new Rect(100, 100, 200, 200);
    // Scroll position
    public Vector2 scrollPos = Vector2.zero;
    void OnGUI()
    {
        // Set up a scroll view
        scrollPos = GUI.BeginScrollView(new Rect(0, 0, position.width, position.height), scrollPos, new Rect(0, 0, 1000, 1000));

        // Same code as before - make a window. Only now, it's INSIDE the scrollview
        BeginWindows();
        windowRect = GUILayout.Window(1, windowRect, DoWindow, "Hi There");
        EndWindows();
        // Close the scroll view
        GUI.EndScrollView();
    }

    void DoWindow(int unusedWindowID)
    {
        GUILayout.Button("Hi");
        GUI.DragWindow();
    }

    [MenuItem("Test/GUIWindow Demo 2")]
    static void Init()
    {
        EditorWindow.GetWindow(typeof(GUIWindowDemo2));
    }
}