UnityWebRequest加载Texture防止泄漏

拼搏现实的明天。 2023-10-08 10:42 17阅读 0赞

新版本的Unity改用了UnityWebRequest来替代WWW，贴图泄漏要注意

//在旧的WWW里
    //不能直接www.texture
    xxx.texture = www.texture; 
    //只要有www.texture就会有内存泄漏
    //可以用www的LoadImageIntoTexture方法直接赋值
    www.LoadImageIntoTexture(texture);

在UnityWebRequest下没有了LoadImageIntoTexture方法,可以改用DownloadHandlerTexture.GetContent();

string path = string.Format("{0}/svg/{1}", Application.persistentDataPath,one.xml.path);
                    filename = string.Format("{0}/{1}.ss", path, one.xml.svg);
    
                    if (Application.platform == RuntimePlatform.Android)
                    {
                        filename = string.Format("file://{0}", filename);
                    }
                    else
                    {
                        filename = string.Format("file://{0}", filename);
                    }
                    //Debug.Log("如果有图片了." + one.xml.svg+","+ filename);
                    //Debug.Log("==="+filename);
                    www = UnityWebRequest.Get(filename);
                    downloadTexture = new DownloadHandlerTexture(true);
                    www.downloadHandler = downloadTexture;
                    yield return www.SendWebRequest();
                    if (www.isNetworkError || www.isHttpError)
                    {
                        Debug.LogError(www.error + "," + filename);
                        one.DeleteOne();
                        continue;
                    }
                    if (!dictJPG.ContainsKey(one.xml.svg))
                    {
                        dictJPG.Add(one.xml.svg, www);
                    }
               
                 
                    Texture2D texture2d = DownloadHandlerTexture.GetContent(www);
    
                    one.svgImg.texture = texture2d;

另外有一个关于加载图片的测试：  
https://blog.csdn.net/thinbug/article/details/118760149?spm=1001.2014.3001.5501