一、AFNetworking 五大模块
1、网络通信模块
NSURLSession
2、网络监听模块
Reachability
3、序列化/反序列化模块
Serialization
4、安全传输模块
Security
5、UIKit的扩展
UIKit
二、网络通信模块
AFHTTPSessionManager、AFURLSessionManager ， AFHTTPSessionManager是继承自AFURLSessionManager所以我们先来看AFURLSessionManager
@interface AFURLSessionManager : NSObject
<
NSURLSessionDelegate,
NSURLSessionTaskDelegate,
NSURLSessionDataDelegate, // 遵循了 NSURLSession的各种协议以来处理请求的各种状态、请求、取消、暂停、进度等等
NSURLSessionDownloadDelegate,
NSSecureCoding,
NSCopying
>
-AFURLSessionManager 属性
网上搜了一张图片
image.png
-AFURLSessionManager方法
///---------------------
/// @name Initialization
///---------------------
/**
Creates and returns a manager for a session created with the specified configuration. This is the designated initializer.
@param configuration The configuration used to create the managed session.
@return A manager for a newly-created session.
*/
- (instancetype)initWithSessionConfiguration:(nullable NSURLSessionConfiguration *)configuration NS_DESIGNATED_INITIALIZER;
configuration 默认为 defaultSessionConfiguration
1.这个方法初始化了一个operationQueue 并且设置最大并发量 = 1
2.初始化了一个默认的安全策略
3.网络状态单例持有
4.初始化一个NSLock
5.初始化存储每个任务代理的字典
取消会话，cancelPendingTasks 为 YES 则立即取消所有task，NO 则完成所有任务之后再取消会话
resetSession 是否将会话置为nil
/**
Invalidates the managed session, optionally canceling pending tasks and optionally resets given session.
@param cancelPendingTasks Whether or not to cancel pending tasks.
@param resetSession Whether or not to reset the session of the manager.
*/
- (void)invalidateSessionCancelingTasks:(BOOL)cancelPendingTasks resetSession:(BOOL)resetSession;
/**
这个方法给task设置上传下载进度和完成/失败的回调为一个对象
Creates an `NSURLSessionDataTask` with the specified request.
@param request The HTTP request for the request.
@param uploadProgressBlock A block object to be executed when the upload progress is updated. Note this block is called on the session queue, not the main queue.
@param downloadProgressBlock A block object to be executed when the download progress is updated. Note this block is called on the session queue, not the main queue.
@param completionHandler A block object to be executed when the task finishes. This block has no return value and takes three arguments: the server response, the response object created by that serializer, and the error that occurred, if any.
*/
- (NSURLSessionDataTask *)dataTaskWithRequest:(NSURLRequest *)request
uploadProgress:(nullable void (^)(NSProgress *uploadProgress))uploadProgressBlock
downloadProgress:(nullable void (^)(NSProgress *downloadProgress))downloadProgressBlock
completionHandler:(nullable void (^)(NSURLResponse *response, id _Nullable responseObject, NSError * _Nullable error))completionHandler;
创建一个本地文件上传的task并和上面一样设置一个代理对象
///---------------------------
/// @name Running Upload Tasks
///---------------------------
/**
Creates an `NSURLSessionUploadTask` with the specified request for a local file.
@param request The HTTP request for the request.
@param fileURL A URL to the local file to be uploaded.
@param uploadProgressBlock A block object to be executed when the upload progress is updated. Note this block is called on the session queue, not the main queue.
@param completionHandler A block object to be executed when the task finishes. This block has no return value and takes three arguments: the server response, the response object created by that serializer, and the error that occurred, if any.
@see `attemptsToRecreateUploadTasksForBackgroundSessions`
*/
- (NSURLSessionUploadTask *)uploadTaskWithRequest:(NSURLRequest *)request
fromFile:(NSURL *)fileURL
progress:(nullable void (^)(NSProgress *uploadProgress))uploadProgressBlock
completionHandler:(nullable void (^)(NSURLResponse *response, id _Nullable responseObject, NSError * _Nullable error))completionHandler;
和上面一样只不过文件类型不一样 这里是一个 NSData
/**
Creates an `NSURLSessionUploadTask` with the specified request for an HTTP body.
@param request The HTTP request for the request.
@param bodyData A data object containing the HTTP body to be uploaded.
@param uploadProgressBlock A block object to be executed when the upload progress is updated. Note this block is called on the session queue, not the main queue.
@param completionHandler A block object to be executed when the task finishes. This block has no return value and takes three arguments: the server response, the response object created by that serializer, and the error that occurred, if any.
*/
- (NSURLSessionUploadTask *)uploadTaskWithRequest:(NSURLRequest *)request
fromData:(nullable NSData *)bodyData
progress:(nullable void (^)(NSProgress *uploadProgress))uploadProgressBlock
completionHandler:(nullable void (^)(NSURLResponse *response, id _Nullable responseObject, NSError * _Nullable error))completionHandler;
创建一个下载任务并设置代理进度回调
/**
Creates an `NSURLSessionUploadTask` with the specified streaming request.
@param request The HTTP request for the request.
@param uploadProgressBlock A block object to be executed when the upload progress is updated. Note this block is called on the session queue, not the main queue.
@param completionHandler A block object to be executed when the task finishes. This block has no return value and takes three arguments: the server response, the response object created by that serializer, and the error that occurred, if any.
*/
- (NSURLSessionUploadTask *)uploadTaskWithStreamedRequest:(NSURLRequest *)request
progress:(nullable void (^)(NSProgress *uploadProgress))uploadProgressBlock
completionHandler:(nullable void (^)(NSURLResponse *response, id _Nullable responseObject, NSError * _Nullable error))completionHandler;
AFHTTPSessionManager
AFHTTPSessionManager 继承自 AFURLSessionManager
-属性
属性 baseUrl 是 readonly 说明是初始化之后就不可在改变的相当于域名我们会定义一些baseurl 省的最后请求的时候拼接的前面那一部分。但是要注意 baseUrl要以 '/' 结尾
// 请求序列化
@property (nonatomic, strong) AFHTTPRequestSerializer <AFURLRequestSerialization> * requestSerializer;
// 响应序列化
@property (nonatomic, strong) AFHTTPResponseSerializer <AFURLResponseSerialization> * responseSerializer;
-方法
还有一堆构造方法
/**
Creates and returns an `AFHTTPSessionManager` object.
*/
+ (instancetype)manager;
/**
Initializes an `AFHTTPSessionManager` object with the specified base URL.
@param url The base URL for the HTTP client.
@return The newly-initialized HTTP client
*/
- (instancetype)initWithBaseURL:(nullable NSURL *)url;
/**
Initializes an `AFHTTPSessionManager` object with the specified base URL.
This is the designated initializer.
@param url The base URL for the HTTP client.
@param configuration The configuration used to create the managed session.
@return The newly-initialized HTTP client
*/
- (instancetype)initWithBaseURL:(nullable NSURL *)url
sessionConfiguration:(nullable NSURLSessionConfiguration *)configuration NS_DESIGNATED_INITIALIZER;
-请求方法
GET 请求是向服务端发起请求数据,用来获取或查询资源信息
POST 请求是向服务端发送数据的,用来更新资源信息,它可以改变数据的种类等资源
PUT 请求和POST请求很像,都是发送数据的,但是PUT请求不能改变数据的种类等资源,它只能修改内容
DELETE 请求就是用来删除某个资源的
PATCH 请求和PUT请求一样,也是用来进行数据更新的,它是HTTP verb推荐用于更新的
1.GET
- (nullable NSURLSessionDataTask *)GET:(NSString *)URLString
parameters:(nullable id)parameters
headers:(nullable NSDictionary <NSString *, NSString *> *)headers
progress:(nullable void (^)(NSProgress *downloadProgress))downloadProgress
success:(nullable void (^)(NSURLSessionDataTask *task, id _Nullable responseObject))success
failure:(nullable void (^)(NSURLSessionDataTask * _Nullable task, NSError *error))failure;
其他请求大同小异不列举
AFURLSessionManagerTaskDelegate
看名字就知道是某一个请求的代理封装 NSURLSessionTaskDelegate、NSURLSessionDataDelegate、NSURLSessionDownloadDelegate 的封装并且调用初始化时传过来的回调,他也只是承担了一部分由AFURLSessionManager转化过来的代理处理
AFNetworkReachabilityManager
没怎么看这个的源码，这是一个独立的网络监听，可获取单例也可自己创建。
可以监听这几个状态
typedef NS_ENUM(NSInteger, AFNetworkReachabilityStatus) {
AFNetworkReachabilityStatusUnknown = -1,
AFNetworkReachabilityStatusNotReachable = 0,
AFNetworkReachabilityStatusReachableViaWWAN = 1,
AFNetworkReachabilityStatusReachableViaWiFi = 2,
};
AFURLRequestSerialization
队发起请求的配置封装timeout、headers、等等的配置。
AFURLResponseSerialization
封装了几种网络请求response类型，json、xml
image.png
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