IOS Multithreading & Networking-4.0-AFN framework simple to use

A.AFN Basic Knowledge 1. Concept

• Afnetworking
• It's a package for nsurlconnection.
• Operating efficiency without ASI high (because ASI is based on cfnetwork), but simple to use
• AFN Support Arc

B. Basic request use 1. Basic use (1) header file AFNetworking.h (2) Manager class: Afhttprequestoperationmanager (3) "Get" method to send a GET request using "POST" Method sends a POST request (4) using a dictionary to send parameters (5) block processing request success/failure

 1/** Send get/post request */2-(void) Sendnormalrequest {3//1. Create Request Manager 4 Afhttprequestoperationmanager *manager = [Afhttprequestoperationmanager Manager]; 5 6//2. Set parameter 7 nsmutabledictionary *param = [Nsmutabledictionary dictionary]; 8 param[@ "user"] = @ "Tom"; 9 param[@ "password"] = @ "123"; 10 11//3. Send request////3.1 GET request//[manager get:@] Http://192.168.0.21:8 080/mytestserver/login "Parameters:param success:^ (afhttprequestoperation *operation, id responseObject) {+//NSL OG (@ "request succeeded"); NSLog (@ "%@", responseobject), +//} failure:^ (Afhttprequestoperation *operation, Nserror *err OR) {NSLog (@ "request Failed"), NSLog (@ "%@", error),//}];20//3.2 POST request [manager PO st:@ "Http://192.168.0.21:8080/MyTestServer/login" Parameters:param success:^ (afhttprequestoperation *operation, ID Responseobject) {NSLog (@ "request succeeded"), NSLog (@ "%@", Responseobject), failure:^ (afhttpreqUestoperation *operation, Nserror *error) {NSLog (@ "request Failed"), NSLog (@ "%@", error); 28}];29} 

  2. To facilitate viewing of the Chinese data returned by the server, add a category to the array and dictionary, support Chinese

 1 #import <Foundation/Foundation.h> 2 3 @implementation nsdictionary (LOG) 4 5/** Localized display */6-(NSString *) descr Iptionwithlocale: (ID) locale {7 nsmutablestring *str = [nsmutablestring string]; 8 9 [str appendstring:@ ' {\ n '] ; 10 11//Traversal dictionary [self enumeratekeysandobjectsusingblock:^ (ID key, id obj, BOOL *stop) {[str appendf ormat:@ "\t%@ =%@,\n", key, obj];14}];15 [str appendstring:@ "}"];17 18//Remove Last "," Nsrange RA Nge = [Str rangeofstring:@], "options:nsbackwardssearch];20 [str deletecharactersinrange:range];21-Return St r;23}24 @end26 @implementation Nsarray (Log)-(NSString *) Descriptionwithlocale: (id) locale {nsmutables Tring *str = [nsmutablestring string];31 [str appendstring:@ "[\ n]];33 34//traversal array all elements [self enumerat     eobjectsusingblock:^ (id obj, Nsuinteger idx, BOOL *stop) {[str appendformat:@ '%@, \ n ', obj];37}];38 39 [Str appendstring:@]] "];40 return str;42}43 @end 

3. Parse the returned JSON data

• Afhttprequestoperationmanager relies on the setup serializer to automatically identify and parse the returned data
• JSON parsing is used by default, so you don't have to set the serializer
• will automatically convert the JSON into a dictionary or an array output.

 1/** returns JSON data */2-(void) Getjson {3//1. Create Request Manager 4 Afhttprequestoperationmanager *manager = [afhttpreq Uestoperationmanager Manager]; 5 6//Set serializer 7//[Manager Setresponseserializer:[afjsonresponseserializer serializer]];//Default 8 9//2. Settings Parameters nsmutabledictionary *param = [nsmutabledictionary dictionary];11 param[@ "type"] = @ "JSON"; 12 13//3. Hair Send Request [manager get:@ "Http://192.168.0.21:8080/MyTestServer/video" Parameters:param success:^ ( Afhttprequestoperation *operation, id responseobject) {NSLog (@ "request succeeded"), + NSLog (@ "The data type returned is:%@", [respons Eobject class]), NSLog (@ "%@", Responseobject), failure:^ (afhttprequestoperation *operation, Nserror *err OR) {NSLog (@ "request Failed"), NSLog (@ "%@", error),}];22} 

  output:  2015-01-30 03:34:14.817 afnbasicdemo[1889:192783]   Request succeeded
2015-01-30 03:34:14.817 afnbasicdemo[1889:192783]   The returned data type is : __nscfdictionary
2015-01-30 03:34:14.818 afnbasicdemo[1889:192783] {
Videos = [
{
name =   Dragon trainer 1,
video = videos/1.mp4,
length = + seconds ,
image = images/[20150124-180852-0]. PNG   },   ...      4. Parsing the returned XML data settings use an XML serializer, or you can automatically convert the XML data into a dictionary or an array if the XML serializer is not set, processing the returned data fails  

 1/** returns XML data */2-(void) getxml{3//1. Create Request Manager 4 Afhttprequestoperationmanager *manager = [afhttpreques Toperationmanager Manager]; 5 6//Set Serializer 7 [manager Setresponseserializer:[afxmlparserresponseserializer Serializer]]; 8 9//2. Set parameters nsmutabledictionary *param = [nsmutabledictionary dictionary];11 param[@ "type"] = @ "xml"; 1 2 13 14//3. Send Request __weak typeof (self) VC = self;16 [Manager get:@ "Http://192.168.0.21:8080/MyTestServe         R/video "Parameters:param success:^ (afhttprequestoperation *operation, id responseobject) {NSLog (@" request succeeded "); 18 NSLog (@ "returned data type is:%@", [Responseobject class]); Nsxmlparser *parser = (Nsxmlparser *) responseobj ect;21 parser.delegate = vc;22 [Parser parse];23} failure:^ (Afhttprequestoperation *operation, NSErro R *error) {NSLog (@ "request Failed"), NSLog (@ "%@", error);}];27} 

C. File download/upload 1. File download

• is also a simple send request
• But there's no such thing as ASI's listening capabilities

 1-(void) DownloadFile {2//1. Create Request Manager 3 Afhttprequestoperationmanager *manager = [afhttprequestoperationmanage R Manager]; 4 5//Set serializer 6 [manager Setresponseserializer:[afhttpresponseserializer Serializer]]; Using binary Data Serialization 7 8//3. Send Request 9 [manager get:@ "Http://192.168.0.21:8080/MyTestServer/images/images.zip" Paramete Rs:nil success:^ (afhttprequestoperation *operation, id responseobject) {ten NSLog (@ "request succeeded"); NSL OG (@ "Returned data type is:%@", [Responseobject class]); NSString *cachepath = [nssearchpathfordirectoriesindomains (Nscachesdirectory, Nsuserdomainmask, YES) lastobject];15 nsstring *filepath = [CachePath stringbyappendingpathcom ponent:@ "Download.zip"];16 nsdata *data = (NSData *) responseobject;17 [data Writetofile:filepath atomical         LY:YES];18} failure:^ (Afhttprequestoperation *operation, Nserror *error) {NSLog (@ "request Failed"); 21 NSLog (@ "%@", error); 22}];25; 

2. File Upload

• Post method with Formdata with POST request
• To distinguish between common parameters and file parameters, it is not possible to upload file data in normal parameters.
• The file is assigned in the block parameter

(1) Converting files into binary data (2) stitching file parameters

 1/** Upload file */2-(void) UploadFile {3//1. Create Request Manager 4 Afhttprequestoperationmanager *manager = [Afhttprequestope Rationmanager Manager]; 5 6//2. Set parameter 7 nsmutabledictionary *param = [Nsmutabledictionary dictionary]; 8 param[@ "user"] = @ "uploader"; 9 10//3. Set upload file one by one nsstring *filepath = [[NSBundle mainbundle] pathforresource:@ "m2.jpg" oftype:nil];12 NSD  ATA *filedata = [NSData datawithcontentsoffile:filepath];13 14//4. Uploading Files: __weak typeof (FileData) Uploaddata = filedata;16 [manager post:@ "Http://192.168.0.21:8080/MyTestServer/upload" Parameters:param Constructingbodywith block:^ (id<afmultipartformdata> formData) {18 19//splicing file data [FormData Appendpartwithfiledata : Uploaddata name:@ "UploadedFile" filename:@ "my_pic.jpg" mimetype:@ "Image/jpg"];21 (success:^) AFHTTPRequestO Peration *operation, id responseobject) {NSLog (@ "Upload succeeded----%@", responseobject); failure:^ (AFHTTPREquestoperation *operation, Nserror *error) {NSLog (@ "Upload failed----%@", error); 26}];27} 

     D. Network status monitoring  afnetworkreachabilitymanager (1) Creating a Network Monitoring Manager (2) Setting up monitoring network status changes (3) Open monitoring (4) can also take the initiative to obtain network status  

 1-(Ibaction) Monitornetwork: (UIButton *) Sender {2//1. Create Network Status Monitoring Manager 3 Afnetworkreachabilitymanager *manager = [A Fnetworkreachabilitymanager Sharedmanager];         4 5//2. Network Status Change event (passive detection) 6 [Manager setreachabilitystatuschangeblock:^ (Afnetworkreachabilitystatus status) {7                 Switch (status) {8 case Afnetworkreachabilitystatusunknown:9 NSLog (@ "converted to unknown network"); 10 break;11 Case Afnetworkreachabilitystatusreachableviawwan:12 NSLog (@ "Convert to mobile Network"); 1 3 break;14 Case afnetworkreachabilitystatusreachableviawifi:15 NSLog (@ "Convert to WiFi Network "), Break;17 case afnetworkreachabilitystatusnotreachable:18 NSLog (@" converted to No    Network "), break;20 default:22 break;23}24}];25 26//Open Monitor [manager startmonitoring];28 29//Active detection ([manager isreachable]) {NSLog (@ "now has the network"), the "Else if" ([manager Isreachableviawifi]) {NSLog (@ "now over WiFi"); Se if ([manager Isreachableviawwan]) {NSLog (@ "Now on mobile internet"), +-else {PNS NSLog (@ "No network Now"); 38} 39}

[IOS Multithreading & Networking-4.0]-AFN framework simple to use

IOS Multithreading & Networking-4.0-AFN framework simple to use