Object.FindObjectOfType

参数

返回

T Object The first active loaded object that matches the specified type. It returns null if no Object matches the type.

描述

返回第一个类型为 type 的已加载的激活对象。

Object.FindObjectOfType will not return Assets (meshes, textures, prefabs, ...) or inactive objects. It will not return an object that has HideFlags.DontSave set.

Please note that this function is very slow. It is not recommended to use this function every frame. In most cases you can use the singleton pattern instead.

It is recommended to use Object.FindFirstObjectOfType as a direct replacement or the faster Object.FindAnyObjectOfType if any object of the specified type is acceptable.

See Also: Object.FindFirstObjectByType, Object.FindAnyObjectByType, Object.FindObjectsOfType.

using UnityEngine;
using System.Collections;

// Search for any object of Types TextMesh and CanvasRenderer,
// if found print the names, else print a message
// that says that it was not found.
public class ExampleClass : MonoBehaviour
{
    void Start()
    {
        TextMesh texture = (TextMesh)FindObjectOfType(typeof(TextMesh));
        if (texture)
            Debug.Log("TextMesh object found: " + texture.name);
        else
            Debug.Log("No TextMesh object could be found");

        CanvasRenderer canvas = FindObjectOfType<CanvasRenderer>();
        if (canvas)
            Debug.Log("CanvasRenderer object found: " + canvas.name);
        else
            Debug.Log("No CanvasRenderer object could be found");
    }
}