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);
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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;
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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);
}];
}
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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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