Object.FindObjectsByType

参数

返回值

Object[] 找到的与指定类型匹配的对象数组。

描述

检索 Type type 的所有已加载对象的列表。

这不会返回资源（例如网格、纹理或预制体）。它也不会返回设置了 HideFlags.DontSave 的对象。使用 Resources.FindObjectsOfTypeAll 来避免这些限制。

在编辑器中，此功能默认搜索场景视图。如果您想在预制体阶段查找对象，请参阅 StageUtility API。

using UnityEngine;

// Ten GameObjects are created and have TextMesh and
// CanvasRenderer components added.
// When the game runs press the Space key to display the
// number of TextMesh and CanvasRenderer components.

public class ScriptExample : MonoBehaviour
{
    private const int count = 10;

    void Start()
    {
        var gameObjects = new GameObject[count];
        var expectedTextMeshObjects = new TextMesh[count];
        var expectedCanvasObjects = new CanvasRenderer[count];

        for (var i = 0; i < count; ++i)
        {
            gameObjects[i] = new GameObject();
            expectedTextMeshObjects[i] = gameObjects[i].AddComponent<TextMesh>();
            expectedCanvasObjects[i] = gameObjects[i].AddComponent<CanvasRenderer>();
        }
    }

    void Update()
    {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            var foundCanvasObjects = FindObjectsByType<CanvasRenderer>(FindObjectsSortMode.None);
            var foundTextMeshObjects = FindObjectsByType(typeof(TextMesh), FindObjectsSortMode.None);
            Debug.Log(foundCanvasObjects + " : " + foundCanvasObjects.Length);
            Debug.Log(foundTextMeshObjects + " : " + foundTextMeshObjects.Length);
        }
    }
}

其他资源：Object.FindFirstObjectByType、Object.FindAnyObjectByType。