网络框架

最近项目上准备把引入的Mantle替换为YYModel, 之前也听别人书把model传到网络模块中,这样返回的就是转换好的 entity了, 于是今天做了一下实现.

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- ( id)POST:( NSString *)address params:( NSDictionary *)params targetModelClass:(Class)targetModel completionHnadle:(CompletionHandle)handle{ id requestOperation; requestOperation = [ self requestWithMethod: @"POST" address:address params:params completionHnadle:^( id operation, id responseObject, NSError *error) { if (error) { handle(operation, nil, error); } else { if (targetModel) { id model = [targetModel yy_modelWithDictionary:responseObject]; handle (operation, model , nil); } else { handle (operation, responseObject, nil); } } }]; return requestOperation; }

这样拿到了 targetModel就可以直接转换为对应的 entity 了.

顺便还写了一个管理网络请求的队列:

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* 网络请求 operation 管理类 * * @return 管理者 */ + ( instancetype)shareManager; * 添加一个网络请求操作到数组中 * * @param operation void */ - ( void)addOperation:( id)operation; * 移除一个网络请求对象 * * @param operation void */ - ( void)removeOperation:( id)operation; * 移除所有的网络请求 */ - ( void)removeAllOperation; * 获取所有的网络请求数组 * * @return 网络请求的数组 */ - ( NSArray *)allOperation;

还有一个需求 , 就是有的 app 要求退出当前页面的时候,要取消当前页面所有没有完成的网络请求, 于是又写了一个基于 UIViewController 的扩展:

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#import #import "NetworkRequestManager.h" static NSString *kOperationKey = @"kOperationKey"; @implementation (NetworkOperationManager) -( NSMutableArray *)operations { id obj = objc_getAssociatedObject( self, &kOperationKey); if (!obj) { obj = [[ NSMutableArray alloc]init]; objc_setAssociatedObject( self, &kOperationKey, obj, OBJC_ASSOCIATION_RETAIN_NONATOMIC); } return obj; } -( void)addOperation:( id)operation { [ self.operations addObject:operation]; } -( void)cancleOperation:( id)operation { [ self.operations removeObject:operation]; } -( void)cancelAllOperation { [[NetworkRequestManager shareManager] removeAllRequestOperations]; [ self.operations removeAllObjects]; } @end

这样我们在 controller 就能很好的管理我们的网络请求了

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@implementation ViewController - ( void)viewDidLoad { [ super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSURLSessionDataTask *op = [[NetworkRequestManager shareManager] GET: @"http://114.80.110.197/v3/028/json/reply/GetRegionPostsRequest" params: nil targetModelClass:[TestModel class] completionHnadle:^( id operation, id targetData, NSError *error) { TestModel *model = (TestModel *)targetData; [model.result enumerateObjectsUsingBlock:^( id _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { TestModel2 *model2 = (TestModel2 *)obj; NSLog( @"测试地址 : %@", model2.address); }]; }]; [ self addOperation:op]; } - ( void)viewDidDisappear:( BOOL)animated{ [ super viewDidDisappear:animated]; // 退出界面时 取消所有未完成的网络请求 [ self cancelAllOperation]; } @end

项目已上传至 github NetWork简单封装的一套网络请求框架, 支持 NSURLSession / NSURLConnection