// 发现放到外面也没有什么性能提升 , 反而使用 ICSharpCode.SharpZipLib 还产生了内存泄漏
private IEnumerator InitAssetBundles()
{
// 判断是否需要更新
controller.UpdateInfo("检查资源文件中......");
string txt = null;
using (WWW www = new WWW(Application.streamingAssetsPath + "/AssetBundle.txt")) {
yield return(www);
using (StreamReader sr = new StreamReader(new MemoryStream(www.bytes))) {
txt = sr.ReadLine();
}
}
// 先检查标志文件是否存在
if (File.Exists(Application.persistentDataPath + "/AssetBundle.txt"))
{
using (StreamReader sr = File.OpenText(Application.persistentDataPath + "/AssetBundle.txt")) {
string str = sr.ReadLine();
if (str != txt)
{
File.Delete(Application.persistentDataPath + "/AssetBundle.txt");
using (StreamWriter sw = File.CreateText(Application.persistentDataPath + "/AssetBundle.txt")) {
sw.Write(txt.ToCharArray());
sw.Flush();
}
}
else
{
init = true;
LoadManifest();
Destroy(assetBundleInitCanvas);
yield break;
}
}
}
else
{
// 不存在则创建标志文件
using (StreamWriter sw = File.CreateText(Application.persistentDataPath + "/AssetBundle.txt")) {
sw.Write(txt.ToCharArray());
sw.Flush();
}
}
controller.UpdateInfo("正在加载资源压缩包......");
using (MemoryStream ms = new MemoryStream()) {
using (WWW www = new WWW(Application.streamingAssetsPath + "/AssetBundles.zip")) {
yield return(www);
ms.Write(www.bytes, 0, www.bytesDownloaded);
ms.Seek(0L, SeekOrigin.Begin);
controller.InitSlider(www.bytesDownloaded);
}
controller.UpdateInfo("资源解压中......");
using (ZipInputStream zipInput = new ZipInputStream(ms)) {
ZipEntry zipEntry = null;
string fileName = "";
byte[] datas = new byte[4 * 1024];
while ((zipEntry = zipInput.GetNextEntry()) != null)
{
if (zipEntry.Name.EndsWith(".meta") || zipEntry.Name.EndsWith(".manifest"))
{
zipInput.CloseEntry();
continue;
}
fileName = Application.persistentDataPath + "/" + zipEntry.Name;
if (zipEntry.IsFile)
{
if (File.Exists(fileName))
{
File.Delete(fileName); // 如果存在则先删除 , 然后创建一个新的
}
using (FileStream fs = File.Create(fileName)) {
int count = 0;
while ((count = zipInput.Read(datas, 0, datas.Length)) > 0)
{
fs.Write(datas, 0, count);
}
fs.Flush();
}
controller.UpdateProgress((int)zipEntry.Size); // 更新进度条
}
else
{
if (!Directory.Exists(fileName))
{
Directory.CreateDirectory(fileName);
}
}
zipInput.CloseEntry();
yield return(null);
}
}
}
LoadManifest();
init = true;
Destroy(assetBundleInitCanvas);
}
