我是较新的 AFNetworking 2.0。使用下面的代码片段，我已经能够成功地将一张照片上传到我的 url。我想要跟踪的增量上载进度，但我找不到这样做 2.0 版的示例。我的应用程序是 iOS 7，所以我已经选择了为 AFHTTPSessionManager。
任何人都可以提供如何修改这段上传进度进行跟踪的示例？
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];NSData *imageData = UIImageJPEGRepresentation([UIImage imageNamed:@"myimage.jpg"], 1.0);[manager POST:@"http://myurl.com" parameters:dataToPost constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {[formData appendPartWithFileData:imageData name:@"attachment" fileName:@"myimage.jpg" mimeType:@"image/jpeg"];
} success:^(NSURLSessionDataTask *task, id responseObject) {NSLog(@"Success %@", responseObject);
} failure:^(NSURLSessionDataTask *task, NSError *error) {NSLog(@"Failure %@, %@", error, [task.response description]);
}];
解决方法 1:
接口的 AFHTTPSession 不能提供一种方法来设置进度块。相反，必须进行以下操作：
// 1. Create `AFHTTPRequestSerializer` which will create your request.
AFHTTPRequestSerializer *serializer = [AFHTTPRequestSerializer serializer];// 2. Create an `NSMutableURLRequest`.
NSMutableURLRequest *request =[serializer multipartFormRequestWithMethod:@"POST" URLString:@"http://www.myurl.com"parameters:dataToPostconstructingBodyWithBlock:^(id<AFMultipartFormData> formData) {[formData appendPartWithFileData:imageDataname:@"attachment"fileName:@"myimage.jpg"mimeType:@"image/jpeg"];}];// 3. Create and use `AFHTTPRequestOperationManager` to create an `AFHTTPRequestOperation` from the `NSMutableURLRequest` that we just created.
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
AFHTTPRequestOperation *operation =[manager HTTPRequestOperationWithRequest:requestsuccess:^(AFHTTPRequestOperation *operation, id responseObject) {NSLog(@"Success %@", responseObject);} failure:^(AFHTTPRequestOperation *operation, NSError *error) {NSLog(@"Failure %@", error.description);}];// 4. Set the progress block of the operation.
[operation setUploadProgressBlock:^(NSUInteger __unused bytesWritten,long long totalBytesWritten,long long totalBytesExpectedToWrite) {NSLog(@"Wrote %lld/%lld", totalBytesWritten, totalBytesExpectedToWrite);
}];// 5. Begin!
[operation start];
此外，你不需要读取图像通过 UIImage ，然后压缩它再次使用 JPEG 获得 NSData 。只是使用 +[NSData dataWithContentsOfFile:] ，从您捆绑直接读取该文件。
