hi,
I have created windows store apps using winjs,In that I have implemented downloading zip file and its extraction.all working fine for zip files upto 303MB size.I have tested in both debug and release mode all working fine.then I created
app packages and installed in my system.
download and other concepts working fine ,extraction started but not completed it just extracted 2 folders and its sub contents.i don't know whats happening on extraction?..no memory issues stil my app not terminated but extraction not completed.
its working good in my local why its not working on appx file?I want to know the reason behind it
I have used below codes,
public IAsyncOperationWithProgress<int, double> Uncompress(StorageFile File,StorageFolder Destination)
{
return AsyncInfo.Run<int, double>((Token, Progress) =>
{
return Task.Run(async () =>
{
Progress.Report(0);
await UnZipFile(File,Destination);
Token.ThrowIfCancellationRequested();
Progress.Report(100.0);
return 0;
}, Token
);
});
}
private async Task<bool> UnZipFile(StorageFile file,StorageFolder destination)
{
try
{
var folder = destination;
var filename = file.DisplayName;
var zipStream = await file.OpenStreamForReadAsync();
MemoryStream zipMemoryStream = new MemoryStream((int)zipStream.Length);
await zipStream.CopyToAsync(zipMemoryStream);
var storage = await folder.CreateFolderAsync(filename, CreationCollisionOption.OpenIfExists);
var archive = new ZipArchive(zipMemoryStream, ZipArchiveMode.Read);
foreach (ZipArchiveEntry entry in archive.Entries)
{
try
{
if (entry.Name == "")
{
// Folder
await CreateRecursiveFolder(storage, entry);
}
else
{
// File
await ExtractFile(storage, entry);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
return true;
}
catch (Exception)
{
return false;
}
}
private async Task CreateRecursiveFolder(StorageFolder folder, ZipArchiveEntry entry)
{
var steps = entry.FullName.Split('/').ToList();
steps.RemoveAt(steps.Count() - 1);
foreach (var i in steps)
{
try
{
var NewFolder= await folder.CreateFolderAsync(i, CreationCollisionOption.OpenIfExists);
}
catch (Exception ex) {
var x = ex;
}
}
}
private async Task ExtractFile(StorageFolder folder, ZipArchiveEntry entry)
{
var steps = entry.FullName.Split('/').ToList();
steps.RemoveAt(steps.Count() - 1);
foreach (var i in steps)
{
folder = await folder.CreateFolderAsync(i,CreationCollisionOption.OpenIfExists);
}
using (Stream fileData = entry.Open())
{
StorageFile outputFile = await folder.CreateFileAsync(entry.Name, CreationCollisionOption.ReplaceExisting);
using (Stream outputFileStream = await outputFile.OpenStreamForWriteAsync())
{
await fileData.CopyToAsync(outputFileStream);
await outputFileStream.FlushAsync();
}
}
}
Any help would be greatly appreciated
