我正在使用AFHTTPRequestOperation
将一个大文件下载到我设备上的 Documents 目录中。
NSURLRequest *request = [NSURLRequest requestWithURL:vectorFile.url];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
NSString *path = [self pathForFileName:vectorFile.fileName];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:path append:NO];
[operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
double percentDone = (double)totalBytesRead / (double)totalBytesExpectedToRead;
progress(percentDone, totalBytesRead, totalBytesExpectedToRead);
}];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation * _Nonnull operation, id _Nonnull responseObject) {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{
NSString *path = [self pathForFileName:vectorFile.fileName];
extracting();
[SSZipArchive unzipFileAtPath:path toDestination:[self path] progressHandler:^(NSString *entry, unz_file_info zipInfo, long entryNumber, long total) {
NSLog(@"Unzipping");
} completionHandler:^(NSString *path2, BOOL succeeded, NSError *error) {
if (!error) {
NSLog(@"Successfully downloaded file to %@", path);
dispatch_async(dispatch_get_main_queue(), ^{
completion(YES);
});
} else {
NSLog(@"%@", error);
failure(error);
}
}];
});
} failure:^(AFHTTPRequestOperation * _Nonnull operation, NSError * _Nonnull error) {
NSLog(@"%@", error);
failure(error);
}];
[operation start];
出于某种奇怪的原因,它可以在模拟器上下载文件,但在设备(iPhone 6)上我收到以下错误:
Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"
URL 是正确的,因为它在我的浏览器和模拟器中正确下载。为什么这只会发生在设备上?什么可能导致它?
我已尝试重新启动设备并重置网络设置。