AFNetworking 2.0-成功时如何将响应传递给另一个班级 [英] AFNetworking 2.0 - How to pass response to another class on success

问题描述

我想知道如何从不同的类调用AFHTTPSessionManagern。当前，我使用此代码来获取响应，但是我不确定如何将其转换为需要参数和回发链接的单例类。我仅接收和处理JSON代码。

I am wondering how can I call AFHTTPSessionManagern from different class. Currently I use this code to get the response but I am not sure how to convert this to singleton class which requires parameters and postback link. I am receiving and processing JSON code only.

static NSString * const BaseURLString = @"http://www.example.com/";
NSURL *baseURL = [NSURL URLWithString:BaseURLString];

NSDictionary *parameters = @{ @"Token" : @"123456"};

AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL];
manager.responseSerializer = [AFJSONResponseSerializer serializer];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];

[manager GET:@"/list-21.aspx?" parameters:parameters success:^(NSURLSessionDataTask *task, id responseObject) {
    self.someDictionary = responseObject[@"User"];
    [self.tableView reloadData];

} failure:^(NSURLSessionDataTask *task, NSError *error) {
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error Retrieving Films"
                                                        message:[error localizedDescription]
                                                       delegate:nil
                                              cancelButtonTitle:@"Ok"
                                              otherButtonTitles:nil];
    [alertView show];
}];

推荐答案

您可以使用委派方法。

创建一个单独的类（Sync.h和Sync.m），该类仅包含上述创建AFHTTPSessionManager，Parameters和启动连接的代码。在此类中创建委托方法。
现在，从您的其他类（mainController）创建一个以上类的对象，然后sync.delegate = self。
收到回复/错误后。委托给在mainController中实现的已定义方法。

Create a separate class (Sync.h and Sync.m) which only contains above code of creating AFHTTPSessionManager, Parameters and starting the connection. Create delegate method in this class. Now from your other class(mainController), create a object of above class and sync.delegate = self. Once you receive repsonse/error. Delegate to the defined methods which are implemented in mainController.

下面是示例：
SyncManager.h

Below is the example: SyncManager.h

#import <UIKit/UIKit.h>
@protocol SyncDelegate<NSObject>

-(void)syncSuccess:(id) responseObject;
-(void)syncFailure:(NSError*) error;

@end

@interface SyncManager: UIViewController
{
}

-(void) serviceCall:(NSString*)url withParams:(NSDictionary*) params;
@end

SyncManager.m

SyncManager.m

@interface SyncManager ()

@end

@implementation SyncManager 

-(void) serviceCall:(NSString*)url withParams:(NSDictionary*) params {
    NSURL *baseURL = [NSURL URLWithString:url];
    AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:baseURL];
    manager.responseSerializer = [AFJSONResponseSerializer serializer];
    manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];
    [manager GET:@"/list-21.aspx?" parameters:parameters success:^(NSURLSessionDataTask *task, id      responseObject) {
        [self.delegate syncSuccess:responseObject];
    } failure:^(NSURLSessionDataTask *task, NSError *error) {
        [self.delegate syncFailure:error];
    }];
}
@end

ViewController.m

ViewController.m

-(void)fetchdata {
    NSDictionary *dictionary = @{@"name":@"Arun"};
    SyncManager *sync = [[SyncManager alloc] init];
    sync.delegate = self;
    [sync serviceCall:@"www.google.com" withparams:dictionary]; 
}

-(void)syncSuccess:(id) responseObject {
    // Parse your data
}

-(void)syncFailure:(NSError*) error {
    //display Error
}

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