iOS-使用AFN设置请求超时时间并做处理

AFN设置请求超时时间

第一种：

//设置超时
[manager.requestSerializer willChangeValueForKey:@"timeoutInterval"];
manager.requestSerializer.timeoutInterval = 30.f;
[manager.requestSerializer didChangeValueForKey:@"timeoutInterval"];

第二种：

NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];
config.timeoutIntervalForRequest = 15.0;
AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithSessionConfiguration:config];

既然有请求超时的设置，自然也有请求超时的错误，其错误码对应如下：-1001

这时在错误中截取错误码并进行如下处理：

[manager POST:url parameters:data progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
//        NSLog(@"url====%@\n返回数据%@",url,responseObject);
        if (result) {
            result(responseObject);
        }
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
        NSLog(@"error ==%@",error);
        //请求超时
        if (error.code  == -1001) {
            //1、获取当前viewController
            UIViewController *viewController = [[CommFun singleton] getCurrentVC];
            //2、隐藏加载框
            [MBProgressHUD hideHUDForView:viewController.view animated:YES];
            //3、弹出提示：请求超时
            SHOWALERT(@"请求超时,请刷新后再试！", viewController);
        }
    }];

苹果相应的错误码如下：

enum {
    NSURLErrorUnknown = -1,
    NSURLErrorCancelled = -999,
    NSURLErrorBadURL = -1000,
    NSURLErrorTimedOut = -1001,
    NSURLErrorUnsupportedURL = -1002,
    NSURLErrorCannotFindHost = -1003,
    NSURLErrorCannotConnectToHost = -1004,
    NSURLErrorDataLengthExceedsMaximum = -1103,
    NSURLErrorNetworkConnectionLost = -1005,
    NSURLErrorDNSLookupFailed = -1006,
    NSURLErrorHTTPTooManyRedirects = -1007,
    NSURLErrorResourceUnavailable = -1008,
    NSURLErrorNotConnectedToInternet = -1009,
    NSURLErrorRedirectToNonExistentLocation = -1010,
    NSURLErrorBadServerResponse = -1011,
    NSURLErrorUserCancelledAuthentication = -1012,
    NSURLErrorUserAuthenticationRequired = -1013,
    NSURLErrorZeroByteResource = -1014,
    NSURLErrorCannotDecodeRawData = -1015,
    NSURLErrorCannotDecodeContentData = -1016,
    NSURLErrorCannotParseResponse = -1017,
    NSURLErrorInternationalRoamingOff = -1018,
    NSURLErrorCallIsActive = -1019,
    NSURLErrorDataNotAllowed = -1020,
    NSURLErrorRequestBodyStreamExhausted = -1021,
    NSURLErrorFileDoesNotExist = -1100,
    NSURLErrorFileIsDirectory = -1101,
    NSURLErrorNoPermissionsToReadFile = -1102,
    NSURLErrorSecureConnectionFailed = -1200,
    NSURLErrorServerCertificateHasBadDate = -1201,
    NSURLErrorServerCertificateUntrusted = -1202,
    NSURLErrorServerCertificateHasUnknownRoot = -1203,
    NSURLErrorServerCertificateNotYetValid = -1204,
    NSURLErrorClientCertificateRejected = -1205,
    NSURLErrorClientCertificateRequired = -1206,
    NSURLErrorCannotLoadFromNetwork = -2000,
    NSURLErrorCannotCreateFile = -3000,
    NSURLErrorCannotOpenFile = -3001,
    NSURLErrorCannotCloseFile = -3002,
    NSURLErrorCannotWriteToFile = -3003,
    NSURLErrorCannotRemoveFile = -3004,
    NSURLErrorCannotMoveFile = -3005,
    NSURLErrorDownloadDecodingFailedMidStream = -3006,
    NSURLErrorDownloadDecodingFailedToComplete = -3007
}