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所屬分類：百科知識
在Unity中，要獲取Texture的內存文件大小，可以使用UnityEditor.TextureUtil類中的一些函數。這些函數提供了獲取存儲內存大小和運行時內存大小的方法。由于UnityEditor.TextureUtil是一個內部類，我們需要使用反射來訪問它。
步驟
- 導入UnityEditor命名空間和System.Reflection命名空間：
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using UnityEditor;using System.Reflection; |
- 創建一個函數來獲取Texture的內存文件大小：
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public static long GetTextureFileSize(Texture2D texture){????long fileSize = 0;????// 使用反射獲取UnityEditor.TextureUtil類的Type????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");????// 使用反射獲取UnityEditor.TextureUtil類的GetStorageMemorySizeLong方法????MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod("GetStorageMemorySizeLong", BindingFlags.Static | BindingFlags.Public);????// 調用GetStorageMemorySizeLong方法獲取存儲內存大小????fileSize = (long)getStorageMemorySizeLongMethod.Invoke(null, new object[] { texture });????return fileSize;} |
- 創建一個函數來獲取Texture的運行時內存大小：
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public static long GetTextureRuntimeMemorySize(Texture2D texture){????long memorySize = 0;????// 使用反射獲取UnityEditor.TextureUtil類的Type????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");????// 使用反射獲取UnityEditor.TextureUtil類的GetRuntimeMemorySizeLong方法????MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod("GetRuntimeMemorySizeLong", BindingFlags.Static | BindingFlags.Public);????// 調用GetRuntimeMemorySizeLong方法獲取運行時內存大小????memorySize = (long)getRuntimeMemorySizeLongMethod.Invoke(null, new object[] { texture });????return memorySize;} |
示例代碼
示例 1：獲取Texture的存儲內存大小
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using UnityEngine;using UnityEditor;using System.Reflection;public class TextureSizeExample : MonoBehaviour{????[SerializeField]????private Texture2D texture;????private void Start()????{????????long fileSize = GetTextureFileSize(texture);????????Debug.Log("Texture File Size: " + fileSize + " bytes");????}????private static long GetTextureFileSize(Texture2D texture)????{????????long fileSize = 0;????????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");????????MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod("GetStorageMemorySizeLong", BindingFlags.Static | BindingFlags.Public);????????fileSize = (long)getStorageMemorySizeLongMethod.Invoke(null, new object[] { texture });????????return fileSize;????}} |
示例 2：獲取Texture的運行時內存大小
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using UnityEngine;using UnityEditor;using System.Reflection;public class TextureSizeExample : MonoBehaviour{????[SerializeField]????private Texture2D texture;????private void Start()????{????????long memorySize = GetTextureRuntimeMemorySize(texture);????????Debug.Log("Texture Runtime Memory Size: " + memorySize + " bytes");????}????private static long GetTextureRuntimeMemorySize(Texture2D texture)????{????????long memorySize = 0;????????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");????????MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod("GetRuntimeMemorySizeLong", BindingFlags.Static | BindingFlags.Public);????????memorySize = (long)getRuntimeMemorySizeLongMethod.Invoke(null, new object[] { texture });????????return memorySize;????}} |
示例 3：同時獲取Texture的存儲內存大小和運行時內存大小
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using UnityEngine;using UnityEditor;using System.Reflection;public class TextureSizeExample : MonoBehaviour{????[SerializeField]????private Texture2D texture;????private void Start()????{????????long fileSize = GetTextureFileSize(texture);????????long memorySize = GetTextureRuntimeMemorySize(texture);????????Debug.Log("Texture File Size: " + fileSize + " bytes");????????Debug.Log("Texture Runtime Memory Size: " + memorySize + " bytes");????}????private static long GetTextureFileSize(Texture2D texture)????{????????long fileSize = 0;????????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");????????MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod("GetStorageMemorySizeLong", BindingFlags.Static | BindingFlags.Public);????????fileSize = (long)getStorageMemorySizeLongMethod.Invoke(null, new object[] { texture });????????return fileSize;????}????private static long GetTextureRuntimeMemorySize(Texture2D texture)????{????????long memorySize = 0;????????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");????????MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod("GetRuntimeMemorySizeLong", BindingFlags.Static | BindingFlags.Public);????????memorySize = (long)getRuntimeMemorySizeLongMethod.Invoke(null, new object[] { texture });????????return memorySize;????}} |
注意事項
- 確保在使用反射訪問UnityEditor.TextureUtil類之前，已經導入了UnityEditor命名空間和System.Reflection命名空間。
- 使用反射時，需要使用BindingFlags.Static | BindingFlags.Public來獲取靜態公共方法。
- 在示例代碼中，我們使用了Texture2D類型的變量來表示Texture，你可以根據實際情況修改代碼以適應不同的Texture類型。
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