當我使用SharpZipLib來解壓zip文件,該文件在windows phone 7上有5000個文件。完成它需要5分多鐘。 這裏是代碼:如何加快windows phone 7上的解壓縮操作?
using (StreamReader httpwebStreamReader = new StreamReader(ea.Result))
{
//open isolated storage to save files
using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication())
{
using (ZipInputStream s = new ZipInputStream(httpwebStreamReader.BaseStream))
{
//s.Password = "123456";//if archive is encrypted
ZipEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
{
string directoryName = Path.GetDirectoryName(theEntry.Name);
string fileName = Path.GetFileName(theEntry.Name);
// create directory
if (directoryName.Length > 0)
{
isoStore.CreateDirectory(directoryName);
}
if (fileName != String.Empty)
{
//save file to isolated storage
using (BinaryWriter streamWriter =
new BinaryWriter(new IsolatedStorageFileStream(theEntry.Name,
FileMode.OpenOrCreate, FileAccess.Write, FileShare.Write, isoStore)))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
}
}
}
}
}
}
爲什麼這麼慢? 如何加速解壓縮操作? 有誰知道?
多線程是否可以在此工作? – wing 2012-07-27 09:20:35
這是在模擬器還是在設備上?這兩者之間的時間如何? – 2012-07-27 13:03:18
我的諾基亞800上的時間超過5分鐘,但在模擬器中只花了20秒! – wing 2012-07-30 03:45:45