Question

using UnityEngine;
using System.Collections.Generic;
using Object = UnityEngine.Object;
using System.Reflection;
using UnityEditor;
using System.Linq;

public class SearchableWindow : EditorWindow
{
    string searchString = "";
    static List<GameObject> gameobjecttest = new List<GameObject>();
    Vector2 scrollPos;

    [MenuItem("Tools/Searching")]
    private static void CreateReplaceWithPrefab()
    {
        const int width = 340;
        const int height = 420;

        var x = (Screen.currentResolution.width - width) / 2;
        var y = (Screen.currentResolution.height - height) / 2;

        GetWindow<SearchableWindow>().position = new Rect(x, y, width, height);
    }

    private void OnGUI()
    {
        EditorGUILayout.BeginHorizontal(EditorStyles.toolbar);
        GUILayout.FlexibleSpace();
        searchString = EditorGUILayout.TextField(searchString, EditorStyles.toolbarTextField);
        EditorGUILayout.EndHorizontal();

        if (GUILayout.Button("Search"))
        {
            var items = Selection.gameObjects;
            // Do comparison here. For example
            var selected = GetChildrenRecursive(items);
            gameobjecttest.AddRange(selected);
        }

        EditorGUILayout.BeginHorizontal();
        scrollPos = EditorGUILayout.BeginScrollView(scrollPos, GUILayout.Width(300), GUILayout.Height(400));
        foreach (GameObject go in gameobjecttest)
        {
            EditorGUILayout.LabelField(go.name);
        }
        EditorGUILayout.EndScrollView();
        EditorGUILayout.EndHorizontal();
    }

    private void OnSelectionChange()
    {
        Repaint();
    }

    private static IEnumerable<GameObject> GetChildrenRecursive(GameObject root)
    {
        var output = new List<GameObject>();

        //add the root object itself
        output.Add(root);

        // iterate over direct children
        foreach (Transform child in root.transform)
        {
            // add the children themselves
            output.Add(child.gameObject);

            var childsOfchild = GetChildrenRecursive(child.gameObject);
            output.AddRange(childsOfchild);
        }

        return output;
    }

    private static IEnumerable<GameObject> GetChildrenRecursive(IEnumerable<GameObject> rootObjects)
    {
        var output = new List<GameObject>();

        foreach (var root in rootObjects)
        {
            output.AddRange(GetChildrenRecursive(root));
        }

        // remove any duplicates that would e.g. appear if you select a parent and its child
        return output.Distinct();
    }
}

我要确保在单击按钮时会进行搜索，并且一旦将项目添加到EditorGUILayout.LabelField，但如果它位于if (GUILayout.Button("Search"))内，则需要将它添加到OnGUI内不会将项目添加到EditorGUILayout.LabelField

现在，它会继续向EditorGUILayout.LabelField添加不间断。

Answer 1

您的问题有点不清楚。

如果您的问题仅在于是否可能：

否！（至少不是您的期望）

此区块中的任何内容：

if (GUILayout.Button("Search"))
{
     ...
}

仅在实际按下按钮的那一刻执行。

因此，您必须按照已经执行的方式进行操作。如果列表不为空，也许添加仅显示这些字段的附加检查：

// only show the button while the list is empty
if(gameobjecttest.Count == 0)
{
    if (GUILayout.Button("Search"))
    {
         ...
    }

    // skip the rest
    return;
}

// otherwise show the list
EditorGUILayout.BeginHorizontal();
{
    scrollPos = EditorGUILayout.BeginScrollView(scrollPos, GUILayout.Width(300), GUILayout.Height(400));
    {
        foreach (GameObject go in gameobjecttest)
        {
            EditorGUILayout.LabelField(go.name);
        }
    }
    EditorGUILayout.EndScrollView();
}
EditorGUILayout.EndHorizontal();

（我通常会添加{ }来清理代码）

或保留该按钮但将其禁用

EditorGUI.BeginDisabledGroup(gameobjecttest.Count != 0);
{
    if (GUILayout.Button("Search"))
    {
         ...
    }
}
EditorGUI.EndDisabledGroup();

有没有办法在GUILayout.Button内的EditorWindow中使用EditorGUILayout.LabelField？

1 个答案: