所以，我已经在这些论坛和其他网站上搜索了几天，并且无法找到合适的替代方式来下载AFNetworking 1.0和2.0中的一系列文件。
我正在尝试使用NSURLSessionDownloadTask下载这些文件，但我知道它们不像线程，所以你不能这样处理它们。
以前我可以按顺序下载多个文件并获得总操作的进度更新（不仅是在每个文件上，而且在整个队列上）。
这是我使用的基本结构...
for(Photo *photo in array){
//form the path where you want to save your downloaded image to
NSString *constPath = [photo imageFullPath];
//url of your photo
NSURL *url = [NSURL URLWithString:photo.serverPath];
AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:[NSURLRequest requestWithURL:url]];
op.responseSerializer = [AFImageResponseSerializer serializer];
op.outputStream = [NSOutputStream outputStreamToFileAtPath:constPath append:NO];
op.queuePriority = NSOperationQueuePriorityLow;
[op setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead){
}];
op.completionBlock = ^{
//do whatever you want with the downloaded photo, it is stored in the path you create in constPath
};
[requestArray addObject:op];
}
NSArray *batches = [AFURLConnectionOperation batchOfRequestOperations:requestArray progressBlock:^(NSUInteger numberOfFinishedOperations, NSUInteger totalNumberOfOperations) {
} completionBlock:^(NSArray *operations) {
//after all operations are completed this block is called
if (successBlock)
successBlock();
}];
[[NSOperationQueue mainQueue] addOperations:batches waitUntilFinished:NO];
(this code was taken from another post but it is exactly what i was using on a previous app)
And now, trying to use NSURLSessionDownloadTask, I can not find a way to adapt the following code to run in a series (1 file at a time, in order, with progress and file data along the way).
NSURLSessionDownloadTask *newTask = [_downloadReqOps downloadTaskWithRequest:myRequest progress:^(NSProgress * _Nonnull downloadProgress) {
//Progress
} destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {
NSString *filePath = [NSString stringWithFormat:@"%@/%@", [CompanyInfo storeFileInFolder:kTempFiles], response.URL.absoluteString.lastPathComponent];
//NSLog(@"File Path: %@", filePath);//response.URL.absoluteString.lastPathComponent);
return [NSURL fileURLWithPath:filePath];
} completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {
}];
[newTask resume];
我认为这曾经被称为AFNetworking 1.0中的“批处理”请求，但我知道这已经不再使用了。我正在尝试调整新的NSURLSessions来下载这些文件。
任何帮助将不胜感激！