繼續下載使用ASIHTTPRequest文件給出了錯誤

Question

我使用ASIHTTPRequest用於恢復一個文件的下載給出瞭如下錯誤和恢復碼在底部給出：

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} 

如下開始下載：

-(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; 

} 

和暫停如下下載：

-(IBAction)pauseDownload:(id)sender 
{ 
    // Cancels an asynchronous request 
    [request cancel]; 

    // Cancels an asynchronous request, clearing all delegates and blocks first 
    // [request clearDelegatesAndCancel]; 

} 

和簡歷下載如下：

- (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]; 
} 

而且我將「範圍」HTTP頭字段設置爲相應的文件大小。服務器上的相同文件支持下載暫停，應用程序恢復http://itunes.apple.com/us/app/download-manager-pro-lite/id348573579?mt=8 如何實施恢復下載 在此先感謝。

Answer 1

您應該參考How to Pause and Resume Downloading Files with ASIHTTP Request in iPhone和 ASIHTTPRequest documentation。