Resume downloading a file using ASIHTTPRequest gives error - iphone

Question

I am using ASIHTTPRequestfor resuming the downloading of a file gives the error as below and the Resume code is given at the bottom:
Error Domain=ASIHTTPRequestErrorDomain Code=8 "Decompression of /Users/xxxx/Library/Application Support/iPhone Simulator/4.3.2/Applications/6E0D8E0F-08FD-440C-82F6-8E39E219884E/Documents/myPdf.pdf.download failed with code -3" UserInfo=0x4c6a8e0 {NSLocalizedDescription=Decompression of /Users/xxxx/Library/Application Support/iPhone Simulator/4.3.2/Applications/6E0D8E0F-08FD-440C-82F6-8E39E219884E/Documents/myPdf.pdf.download failed with code -3}
Starting download as below:
-(IBAction)startDownload:(id)sender
{
NSURL *url = [NSURL URLWithString:self.sourcePath];
ASIHTTPRequest *req =[[ASIHTTPRequest alloc] initWithURL:url];
[request setDownloadDestinationPath:self.destinationPath];
// This file has part of the download in it already
[request setTemporaryFileDownloadPath:self.temporaryPath];
[req setDownloadProgressDelegate:self];
[req setDelegate:self];
[req startAsynchronous];
self.request = req;
}
and Pause Downloading as below:
-(IBAction)pauseDownload:(id)sender
{
// Cancels an asynchronous request
[request cancel];
// Cancels an asynchronous request, clearing all delegates and blocks first
// [request clearDelegatesAndCancel];
}
and Resume Download as below:
- (IBAction)resumeDownload:(id)sender
{
NSURL *url = [NSURL URLWithString:
self.sourcePath];
ASIHTTPRequest *request1 = [ASIHTTPRequest requestWithURL:url];
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
NSError *err;
NSDictionary *fileDict = [[NSFileManager defaultManager] attributesOfItemAtPath:destinationPath error:&err];
NSLog(#"file Dict: %#", fileDict);
NSLog(#"size: %#",[fileDict valueForKey:NSFileSize]);
NSInteger nSize =[[fileDict valueForKey:NSFileSize] intValue];
// unsigned long long int size1 = [[fileDict valueForKey:NSFileSize] intValue];
NSString *size = [NSString stringWithFormat:#"bytes=%d", nSize];
NSLog(#"file size: %#",size);
[dict setValue:size forKey:#"Range"];
[request1 setRequestHeaders:dict];
// NSString *downloadPath = #"/Users/ben/Desktop/my_work_in_progress.txt";
// The full file will be moved here if and when the request completes successfully
[request1 setDownloadDestinationPath:self.destinationPath];
// This file has part of the download in it already
[request1 setDownloadProgressDelegate:self];
[request1 setDelegate:self];
[request1 setTemporaryFileDownloadPath:self.temporaryPath];
[request1 setAllowResumeForFileDownloads:YES];
[request1 startAsynchronous];
self.request = request1;
//The whole file should be here now.
// NSString *theContent = [NSString stringWithContentsOfFile:downloadPath];
}
And I set the "Range" HTTP header field to the corresponding file size. The same file on server supports download pause, resume on the app http://itunes.apple.com/us/app/download-manager-pro-lite/id348573579?mt=8
How to implement the Resuming a download
Thanks in advance.

Answer 1

You should refer How to Pause and Resume Downloading Files with ASIHTTP Request in iPhone and
ASIHTTPRequest documentation.