AFNetworking - AFHTTPRequestOperation - 檢查setUploadProgressBlock失敗？

Question

我可以發送圖像到服務器，但我有一個問題。 我可以簡單的塊檢查故障是這樣的：

AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; 
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { 
    NSLog(@"success: %@", operation.responseString); 
} 
failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
    NSLog(@"error: %@", operation.responseString); 
    } 
]; 
[operation start]; 

但我不能看到該塊發送的進度。所以，我發現了正在進行的呼叫回這樣一個特殊的塊：

[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) { 
    NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite); 
}]; 
[httpClient enqueueHTTPRequestOperation:operation]; 

的問題是，與setUploadProgressBlock沒有「失敗」 ......

所以我的問題是...有一個如何檢查發送失敗或沒有？

感謝您的幫助

Answer 1

這將是工作的罰款，它會給進展，並進入失效塊，如果事情出了錯：

NSURLRequest *request = [[NSURLRequest alloc] init]; 
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; 
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { 
NSLog(@"success: %@", operation.responseString); 
} 
failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
// If access token is null , we ask to the user if he wants to sign in or sign up ???? 
NSLog(@"error: %@", operation.responseString); 
} 
]; 
[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) { 
NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite); 
}]; 
[operation start]; 

Answer 2

您可以設置兩個區塊，實現你想要什麼。