Unity中实现判断Missing还是Null

Posted 2022-12-08 Hello Bug.

 一：前言

例如脚本丢失，贴图丢失，面板上会显示missing


通过==null判断两者都会返回true，但在有些情况下，需要判断是Missing还是Null，通过try-catch可以判断出具体是Missing还是Null

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二：代码实现

public void CheckReference(UnityEngine.Object reference)

    try
    
        var name = reference.name;

    
    //missing
    catch (MissingReferenceException)
    
        Debug.LogError("The provided reference is missing!");
    
    catch (MissingComponentException)
    
        Debug.LogError("The provided reference is missing!");
    
    catch (UnassignedReferenceException)
    
        Debug.LogWarning("The provided reference is null!");
    
    catch (NullReferenceException)
    
        Debug.LogWarning("The provided reference is null!");
    
    catch (ArgumentNullException)
    
        Debug.LogWarning("The provided reference is null!");
    
    finally