IOS 使用Block二次封装AFNetworking 3.0详解
现在我们网络请求大都用第三方工具—–AFNetworking;
其中,AFNetworking 3.0 是对 NSURLSession 进行的封装,简化了很多步骤,但是在现实开发中,我们可以将AFNetworking再次封装到一个类中,这样通过传去URL和Parameters 就可以进行网络请求。
具体实现步骤:
前期准备:导入AFNetworking第三方框架
1、新建一个工具类,继承自NSObject;
2、在.h 中宏定义两个block,用来回调请求结果;
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//宏定义成功block 回调成功后得到的信息 typedef void (^HttpSuccess)(id data); //宏定义失败block 回调失败信息 typedef void (^HttpFailure)(NSError *error); |
3、使用类方法创建两个GET 和 POST请求函数;
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//get请求 +( void )getWithUrlString:(NSString *)urlString success:(HttpSuccess)success failure:(HttpFailure)failure; //post请求 +( void )postWithUrlString:(NSString *)urlString parameters:(NSDictionary *)parameters success:(HttpSuccess)success failure:(HttpFailure)failure; |
4、在.m 中#import “AFNetworking/AFNetworking.h”,并实现.h中定义的两个函数;
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//GET请求 +( void )getWithUrlString:(NSString *)urlString success:(HttpSuccess)success failure:(HttpFailure)failure{ //创建请求管理者 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; manager.responseSerializer = [AFHTTPResponseSerializer serializer]; //内容类型 manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@ "application/json" ,@ "text/json" ,@ "text/javascript" ,@ "text/html" , nil]; //get请求 [manager GET:urlString parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) { //数据请求的进度 } success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { success(responseObject); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { failure(error); }]; } //POST请求 +( void )postWithUrlString:(NSString *)urlString parameters:(NSDictionary *)parameters success:(HttpSuccess)success failure:(HttpFailure)failure{ //创建请求管理者 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; // manager.responseSerializer = [AFHTTPResponseSerializer serializer]; //内容类型 manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@ "application/json" ,@ "text/json" ,@ "text/javascript" ,@ "text/html" , nil]; //post请求 [manager POST:urlString parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) { //数据请求的进度 } success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { success(responseObject); } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { failure(error); }]; } |
使用步骤:
1、导入自定义的工具类名;
2、调用自定义的方法;
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[XMAFNRequestTools getWithUrlString:url success:^(id data) { self.array = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments | NSJSONReadingMutableLeaves error:nil]; NSLog(@ "%@" ,self.array); } failure:^(NSError *error) { NSLog(@ "%@" ,error); }]; |
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