AssetDatabase.IsMainAssetAtPathLoaded

Parameters

Returns

bool Returns true if the main asset object at assetPath is loaded in memory.

Description

Checks whether the main asset object at assetPath is loaded in memory.

All paths are relative to the Project folder, for example: "Assets/MyTextures/hello.png".

Additional resources: AssetDatabase.LoadMainAssetAtPath, Resources.UnloadAsset, EditorUtility.UnloadUnusedAssetsImmediate.

using UnityEditor;
using UnityEngine;

public class AssetDatabaseExamples : MonoBehaviour
{
    [MenuItem("AssetDatabase/Is Main Asset At Path Loaded")]
    static void IsMainAssetAtPathLoadedExample()
    {
        //Create a material and unload it
        var materialPath = "Assets/Materials/NewMat0.mat";
        var material = new Material(Shader.Find("Standard"));
        AssetDatabase.CreateAsset(material, materialPath);
        Resources.UnloadAsset(material);

        //This will be false
        Debug.Log(AssetDatabase.IsMainAssetAtPathLoaded(materialPath));
        //Load material into memory
        AssetDatabase.LoadAssetAtPath(materialPath, typeof(Object));
        //This will be true
        Debug.Log(AssetDatabase.IsMainAssetAtPathLoaded(materialPath));
    }
}