Steps for IP network requests (WHH for your own reference only)

The process is roughly like this:

1 adding notifications

2 Sending a network request there is an action to send a notification

3 perform specific actions to send notifications

The code is as follows:

1 Add notification in VC

[[Nsnotificationcenter defaultcenter] addobserver:self                                             selector: @selector (receivingYM1:)                                                 Name: @" YM1 " Object : nil];   

2 Sending notifications in SYNDISPATCHPROCESSOR.M

-(void) delaytimegcdbuild{//NSLog (@ "main thread%@", [Nsthread CurrentThread]); //interval or 1 seconds?uint64_t interval =1* Nsec_per_sec/ - ; //Create a GCD queue that specifically executes the timer callback//dispatch_queue_t queue = dispatch_queue_create ("My Queue", 0);dispatch_queue_t queue = Dispatch_get_global_queue (Dispatch_queue_priority_default,0); //Create a timer_timer = Dispatch_source_create (Dispatch_source_type_timer,0,0, queue); //set the timer parameter using the Dispatch_source_set_timer functionDispatch_source_set_timer (_timer, Dispatch_time (Dispatch_time_now,0), Interval,0); //Set CallbackDispatch_source_set_event_handler (_timer, ^() {[Self.arraylockLock]; if([Protocolmutablearrays count]>0) {NSData* Ndata = [Protocolmutablearrays objectatindex:0]; //NSLog (@ "Hava received Datas is-----:%@", [self ndatatogbkstring:ndata]);nsdata* d = [Ndata subdatawithrange:nsmakerange (5,3)]; NSString* AStr =[[NSString alloc] initwithdata:d encoding:nsasciistringencoding]; NSLog (@"here is the type of judgment:%@", ASTR); {                                //send a notification here[[Nsnotificationcenter Defaultcenter] Postnotificationname:astrObject: [Ndata Subdatawithrange:nsmakerange (Ten, ndata.length-Ten)]]; } [protocolmutablearrays Removeobjectatindex:0];            } [Self.arraylock unlock]; });

3 performing events that send notifications

//receive comic data after sending out notifications- (void) ReceivingYM1: (nsnotification*) anotification{//received a large picture of the 4 cells of the comic with some related informationnsdata* NSData = [anotificationObject]; NSString*string=[[NSString Alloc]initwithdata:nsdata encoding:nsutf8stringencoding]; NSLog (@"nsdata:%@",string); [Self Performselectoronmainthread: @selector (updateResgContollerYM1:) Withobject:nsdata waituntildone:yes];}//updated Humor Square Comics UI-(void) UpdateResgContollerYM1: (ID) data{//converting data into a dictionary typensdictionary* ym1dict =[nsjsonserialization jsonobjectwithdata:data options:nsjsonreadingmutablecontainers Error:nil]; //receive with an arrayNsmutablearray *commicarr = [ym1dict valueforkey:@"comiclist"]; //to save data in a dictionarySelf. Fircomicdic = [Commicarr objectatindex:0]; Self. Sndcomicdic= [Commicarr Objectatindex:1]; Self. Thdcomicdic= [Commicarr Objectatindex:2]; Self. Fourthcomicdic= [@{@"comiccontent":@"alcoholic",@"Comicid":@"4"} mutablecopy];}

Steps for IP network requests (WHH for your own reference only)