这个例子，是一个完整的Metro解压缩ZIP文件的例子，首先选择要解压缩的Zip文件，然后自选保存目录。
private async void UnZipFile(object sender, RoutedEventArgs e)
{
FileOpenPicker fop = new FileOpenPicker();
fop.FileTypeFilter.Add(".zip");
fop.SuggestedStartLocation = PickerLocationId.Desktop;
fop.ViewMode = PickerViewMode.List;
var zipfile = await fop.PickSingleFileAsync();
byte[] buffer = WindowsRuntimeBufferExtensions.ToArray(await Windows.Storage.FileIO.ReadBufferAsync(zipfile));
using (MemoryStream stream = new MemoryStream(buffer))
{
ZipArchive zipArchive = new ZipArchive(stream, ZipArchiveMode.Read);
FolderPicker fp = new FolderPicker();
//Add file types to the FolderPicker
foreach (var zipArchiveEntry in zipArchive.Entries)
{
if (!zipArchiveEntry.FullName.EndsWith("/"))
{
string fileExtension = "." + Regex.Match(zipArchiveEntry.FullName, @"[^\.]\w+$").Value;
if (!fp.FileTypeFilter.Contains(fileExtension))
fp.FileTypeFilter.Add(fileExtension);
}
}
fp.SuggestedStartLocation = PickerLocationId.Desktop;
fp.ViewMode = PickerViewMode.List;
StorageFolder unzipfolder = await fp.PickSingleFolderAsync();
int progress = 0;
foreach (var zipArchiveEntry in zipArchive.Entries)
{
if (!String.IsNullOrEmpty(zipArchiveEntry.FullName))
{
if (!zipArchiveEntry.FullName.EndsWith("/"))
{
string fileName = zipArchiveEntry.FullName.Replace("/", "\\");
using (Stream fileData = zipArchiveEntry.Open())
{
StorageFile newFile = await unzipfolder.CreateFileAsync(fileName, CreationCollisionOption.ReplaceExisting);
using (IRandomAccessStream newFileStream = await newFile.OpenAsync(FileAccessMode.ReadWrite))
{
using (Stream s = newFileStream.AsStreamForWrite())
{
await fileData.CopyToAsync(s);
await s.FlushAsync();
}
}
}
}
}
progress++;
progressBar.Value = progress * 100 / zipArchive.Entries.Count;
}
}
}