ios - 'AFHTTPSessionManager' 没有可见的@interface 声明选择器 'POST:parameters:progress:success:failure:'

Question

我是 objective c 和 IOS 的新手，我正在尝试将一些值发布到 url 并尝试获得响应。

但是我无法编译我的项目，因为我遇到了这个错误

/Users/Desktop/MyIOSApps/Chat System/Chat System/SignInVC.m:92:14: No visible @interface for 'AFHTTPSessionManager' declares the selector 'POST:parameters:progress:success:failure:'

导入

#import "SignInVC.h"
#import <QuartzCore/QuartzCore.h>
#import "ApplicationEnvironmentURL.h"
#import "Reachability.h"
#import "AFNetworking/AFNetworking.h"
#import "MBProgressHUD/MBProgressHUD.h"
#import "AppDelegate.h"

Objective-c 代码

- (void)submitLoginRequest:(NSString *)email password:(NSString *)password {

    AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
    manager.requestSerializer = [AFJSONRequestSerializer serializer];

    NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
    [dict setValue:email forKey:@"Email"];
    [dict setValue:password forKey:@"Password"];

    NSLog(@"Login dicxtionary : %@", dict);
    MBProgressHUD *hud;
    hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
    hud.label.text = @"Please wait. Logging in...";

    [hud showAnimated:YES];


    // send user login data to hosting via AFHTTP Async Request in AFNetworking
    [manager POST:BASEURL parameters:dict progress:nil success:^(NSURLSessionTask *task, id responseObject) {

        [hud hideAnimated:YES];
        // Login response validation
        if (responseObject == [NSNull null]) {
            [self showMessage:@"Login Failed" Message:@"Unable to login. Please try again!"];
        }else {
            //NSError *error = nil;
            NSLog(@"response type : %@", NSStringFromClass([responseObject class]));
            //NSDictionary *response = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:&error];
            [self checkResultValue:(NSDictionary *)responseObject];
        }

    } failure:^(NSURLSessionTask *task, NSError *error) {

        NSLog(@"AFHTTPSession Failure : %@", [error localizedDescription]);
    }];

}

谁能帮我解决这个问题。谢谢。

Answer 1

您要找的方法是POST:parameters:success:failure: .因此，只需从方法调用中删除 progress:nil 即可。整个方法调用如下所示。

    [manager POST:BASEURL parameters:dict success:^(NSURLSessionTask *task, id responseObject) {

        [hud hideAnimated:YES];
        // Login response validation
        if (responseObject == [NSNull null]) {
            [self showMessage:@"Login Failed" Message:@"Unable to login. Please try again!"];
        }else {
            //NSError *error = nil;
            NSLog(@"response type : %@", NSStringFromClass([responseObject class]));
            //NSDictionary *response = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:&error];
            [self checkResultValue:(NSDictionary *)responseObject];
        }

    } failure:^(NSURLSessionTask *task, NSError *error) {

        NSLog(@"AFHTTPSession Failure : %@", [error localizedDescription]);
    }];