我想通過使用AFNetworking返回塊中的數據

Question

我有一個函數使用AFJSONRequestOperation，我希望只在成功後返回結果。你能指出我正確的方向嗎？我仍然有點無知與塊和AFNetworking具體。

Answer 1

這本來是更好，如果你已經張貼你的代碼

使用__block可以使用內部塊變量

__block NSString *msg; 
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request]; 
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { 
     [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; 
     [hud hide:YES]; 
     NSLog(@"Success %@", operation.responseString); 
     NSDictionary *message = [NSJSONSerialization JSONObjectWithData:[operation.responseString dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableContainers error:nil]; 
     NSLog(@"%@",message); 
     msg = message 
     ALERT(@"Posted", message[@"message"]); 
    } 
             failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
              NSLog(@"error: %@", operation.responseString); 
              NSLog(@"%@",error); 
             }]; 
    [operation start];