Open source China iOS client Learning (eight) network communication afnetworking Class library

Afnetworking is a lightweight iOS network communications library, after the ASI class library is not updated after the developers have a good choice;

Afnetworking class Library Source code download and use tutorial: https://github.com/AFNetworking/AFNetworking

If you want to delve into the official documentation: http://afnetworking.github.com/AFNetworking/

The use of the Afnetworking class library in the open source China iOS client uses only two instance methods

(1) GetPath:parameters:success:failure:

(2) PostPath:parameters:success:failure:

Their usage is essentially the same, except that the request data is in a different way, a GET request and a POST request. Get is a request to the server to ask for data, which is equivalent to the query information function, will not modify the class capacity, post is a request to the server to submit data, affect the content of the data, two methods of definition:

-(void) GetPath: (NSString *) path parameters: (nsdictionary *) Parameters success: (void (^) (afhttpre Questoperation *operation, ID responseobject) success failure: (void (^) (afhttprequestoperation *operation, NSERR  
    or *error) Failure {nsurlrequest *request = [self requestwithmethod:@ ' get ' path:path parameters:parameters];  
    Afhttprequestoperation *operation = [self httprequestoperationwithrequest:request success:success failure:failure];  
[Self enqueuehttprequestoperation:operation]; }

-(void) Postpath: (NSString *) path   
      parameters: (nsdictionary *) Parameters   
         success: (void (^) ( Afhttprequestoperation *operation, id responseobject) Success  
         failure: (void (^) (afhttprequestoperation * Operation, Nserror *error)) failure  
{  
    nsurlrequest *request = [self requestwithmethod:@ ' POST ' Path:path Parameters:parameters];  
    Afhttprequestoperation *operation = [self httprequestoperationwithrequest:request success:success failure:failure];  
    [Self enqueuehttprequestoperation:operation];  
}

GetPath:parameters:success:failure: Methods use examples in programs:

newsview.m

-(void) Reload: (BOOL) Norefresh {//If there is a network connection if ([Config instance].isnetworkrunning) {if (Isloadin G | |  
        Isloadover) {return;  
        } if (!norefresh) {allcount = 0;  
        int pageIndex = ALLCOUNT/20;  
      
        NSString *url; Switch (self.catalog) {Case 1:url = [NSString stringwithformat:@%@?catalog=%d&pagei  
                ndex=%d&pagesize=%d ", Api_news_list, 1, PageIndex, 20];  
            Break Case 2:url = [NSString stringwithformat:@ "%@?type=latest&pageindex=%d&pagesize=%d", Api_blog_li  
                St, PageIndex, 20];  
            Break Case 3:url = [NSString stringwithformat:@ "%@?type=recommend&pageindex=%d&pagesize=%d", Api_blog  
                _list, PageIndex, 20];  
        Break   
                  } [[Afoscclient Sharedclient]getpath:url Parameters:nil
          success:^ (afhttprequestoperation *operation, id responseobject) {[Tool get  
            OSCNotice2:operation.responseString];  
            isloading = NO;  
            if (!norefresh) {[Self clear];  
                      
                } @try {Nsmutablearray *newnews = Self.catalog <= 1? [Tool readStrNewsArray:operation.responseString andold:news]: [Tool Readstruserblogsar  
                Ray:operation.responseString Andold:news];  
                int count = [Tool isListOver2:operation.responseString];  
                Allcount + = count;  
                if (Count <) {Isloadover = YES;  
                [News addobjectsfromarray:newnews];  
                [Self.tablenews Reloaddata];  
                      
                [Self doneloadingtableviewdata];  
      If it's the first page, it's cached.          if (News.count <=) {[Tool savecache:5 andID:self.catalog AndString:operation.respon  
                Sestring]; }} @catch (NSException *exception) {[Nduncaughtexceptionhandler takeexcept  
            Ion:exception];  
            } @finally {[self doneloadingtableviewdata];  
            } failure:^ (Afhttprequestoperation *operation, Nserror *error) {NSLog (@ "News list gets an error");  
                  
            If you are refreshing [self doneloadingtableviewdata];  
            if ([Config instance].isnetworkrunning = = NO) {return;  
            } isloading = NO; if ([Config instance].isnetworkrunning) {[Tool toastnotification:@ error Network connectionless] AndView:self.view Andloadi  
            Ng:no Andisbottom:no];  
        }  
        }];  
        isloading = YES;  
    [Self.tablenews Reloaddata]; }//ASFruit No network connection else {nsstring *value = [Tool getcache:5 andID:self.catalog];  
            if (value) {Nsmutablearray *newnews = [Tool readstrnewsarray:value andold:news];  
            [Self.tablenews Reloaddata];  
            Isloadover = YES;  
            [News addobjectsfromarray:newnews];  
            [Self.tablenews Reloaddata];  
        [Self doneloadingtableviewdata]; }  
    }  
}