AFNetworking后台文件上传 [英] AFNetworking background file upload

问题描述

我想从我的应用上传文件到我的服务器。下面的代码在应用程序处于活动状态时工作良好。如果我按Home键或打开另一个应用程序上传停止。

我激活后台提取，但仍然无法正常工作。

Afnetworking有后台支持，但我无法弄清楚如何实现这个功能，我的代码。

pre $ N $ C $ str = [[ NSBundle mainBundle] resourcePath] stringByAppendingPathComponent：@Archive.zip];
NSDictionary * parameters = @ {@foo：@bar};
NSURL * filePath = [NSURL fileURLWithPath：str];
AFHTTPRequestSerializer * serializer = [AFHTTPRequestSerializer serializer];

NSData * imageData = [NSData dataWithContentsOfURL：filePath];

$ b $ NSMutableURLRequest * request =
[serializer multipartFormRequestWithMethod：@POSTURLString：@http：// url
参数：参数
constructBodyWithBlock ：^（id< AFMultipartFormData> formData）{
[formData appendPartWithFileData：imageData
name：@image
fileName：@Archive.zip
mimeType：@application /压缩];
}];


AFHTTPRequestOperationManager * manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
AFHTTPRequestOperation * operation =
[manager HTTPRequestOperationWithRequest：request
success：^（AFHTTPRequestOperation * operation，id responseObject）{
NSLog（@Success％@，responseObject）;
}失败：^（AFHTTPRequestOperation *操作，NSError *错误）{
NSLog（@Failure％@，error.description）;
}];

$ b $ [操作setUploadProgressBlock：^（NSUInteger __unused bytesWritten，
long long totalBytesWritten，
long long totalBytesExpectedToWrite）{
NSLog（@Wrote％lld /％lld，totalBytesWritten，totalBytesExpectedToWrite）;
}];


[操作开始];

解决方案

更改这一行

  [operation start]; 
  

至此

  [操作setShouldExecuteAsBackgroundTaskWithExpirationHandler：^ {
 //处理iOS关闭你（可能记下你的
 //停止的地方，以便以后可以恢复）
}]; 
 
 
 [manager.operationQueue addOperation：operation]; 
  

你可以看看这些链接
AFHTTPRequestOperation在待机模式
和

I want to upload files to my server from my app. The code below is working great when app is active. If I press home button or open another app uploading stops.

I activated background fetch but still not working.

Afnetworking has background support but I cant figure out how I implement this feature to my code.

NSString *str=[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"Archive.zip"];
NSDictionary *parameters = @{@"foo": @"bar"};
     NSURL *filePath = [NSURL fileURLWithPath:str];
    AFHTTPRequestSerializer *serializer = [AFHTTPRequestSerializer serializer];

    NSData *imageData=[NSData dataWithContentsOfURL:filePath];


    NSMutableURLRequest *request =
    [serializer multipartFormRequestWithMethod:@"POST" URLString:@"http://url"
                                    parameters:parameters
                     constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
                         [formData appendPartWithFileData:imageData
                                                     name:@"image"
                                                 fileName:@"Archive.zip"
                                                 mimeType:@"application/zip"];
                     }];


    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];
    AFHTTPRequestOperation *operation =
    [manager HTTPRequestOperationWithRequest:request
                                     success:^(AFHTTPRequestOperation *operation, id responseObject) {
                                         NSLog(@"Success %@", responseObject);
                                     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                                         NSLog(@"Failure %@", error.description);
                                     }];


    [operation setUploadProgressBlock:^(NSUInteger __unused bytesWritten,
                                        long long totalBytesWritten,
                                        long long totalBytesExpectedToWrite) {
        NSLog(@"Wrote %lld/%lld", totalBytesWritten, totalBytesExpectedToWrite);
    }];


    [operation start];

解决方案

Change this line

[operation start];

to this

[operation setShouldExecuteAsBackgroundTaskWithExpirationHandler:^{
        // Handle iOS shutting you down (possibly make a note of where you
        // stopped so you can resume later)
    }];


    [manager.operationQueue addOperation:operation];

You can look at these links AFHTTPRequestOperation doesn't work after stand by mode and Alternative for enqueueHTTPRequestOperation in AFNetworking 2.0

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