Afnetworking Self-summary

afnetworking Introduction

• Currently the most used third-party framework in domestic development network applications
• is a Mac OS iOS set of network framework designed for &
• Yes, NSURLConnection and NSURLSession did the encapsulation.
• Provides a rich API
• Provides a perfect solution for errors
• Easy to use

Official address

Https://github.com/AFNetworking/AFNetworking

Steps to learn a third-party framework

1. Get frame

   # 更新框架 $ git pull

2. View official documents
3. Running the demo program
4. Building a Learning Branch
   • 分支is to learn the third-party framework and start the company project an important means!
5. Writing a test program
6. Less Baidu, if really difficult, can Google

Data format for data format requests

• Afurlrequestserialization

type	Description
AFHTTPRequestSerializer	Binary, default
AFJSONRequestSerializer	The JSON (POST JSON) RESTful design style requires
AFPropertyListRequestSerializer	PList (almost unused in POST plist-development)

Response Data Format

• AFURLResponseSerialization

type	Description
AFHTTPResponseSerializer	HTTP binary
AFJSONResponseSerializer	The JSON default
AFXMLParserResponseSerializer	XML Parser Parser SAX parsing
AFXMLDocumentResponseSerializer	(Mac OS X) XML DOM
AFPropertyListResponseSerializer	PList almost no
AFImageResponseSerializer	Image, GIF not supported
AFCompoundResponseSerializer	Combination of

Summary of data formats

• In most cases, JSON is not required to specify

• XML format

  • If SAX parsing, you need to specify a format

    mgr.responseSerializer = [AFXMLParserResponseSerializer serializer];

  • Then the proxy method is used to resolve

  • If DOM parsing, you need to specify the format

    mgr.responseSerializer = [AFHTTPResponseSerializer serializer];

  • Then use the third-party framework to parse

• Image

  • AFN support image caching, there are corresponding classification methods and SDWebImage very similar!
  • However: not supportedGIF

Tips

• When using AFN, be sure to remember the output:error
• If state code == 200 the data format is wrong, set it for the specific format

Add

The following connections are common XML data formats in mobile development

Http://flash.weather.com.cn/wmaps/xml/china.xml

Official demo program Appdelegate set cache

NSURLCache *URLCache = [[NSURLCache alloc] initWithMemoryCapacity:4 * 1024 * 1024 diskCapacity:20 * 1024 * 1024 diskPath:nil];[NSURLCache setSharedURLCache:URLCache];

Set up network access indicators

[[AFNetworkActivityIndicatorManager sharedManager] setEnabled:YES];

AFAppDotNetAPIClient

• Provides a global network access portal

• . h

@interface AFAppDotNetAPIClient : AFHTTPSessionManager+ (instancetype)sharedClient;@end

• . m

StaticNSString *Const afappdotnetapibaseurlstring = @ "https://api.app.net/";  @implementation afappdotnetapiclient+ (instancetype) sharedclient { static afappdotnetapiclient *_ Sharedclient = Nil; static dispatch_once_t Oncetoken; dispatch_once (&oncetoken, ^{_sharedclient = [[Afappdotnetapiclient alloc] initwithbaseurl:[NSURL Urlwithstring:afappdotnetapibaseurlstring]]; _sharedclient. securitypolicy = [Afsecuritypolicy policywithpinningmode:afsslpinningmodenone];}); return _sharedclient;} @end            

Summary

1. AppDelegateset the cache in
2. AppDelegateset the network access indicator in
3. Inherit AFHTTPSessionManager create single case unified management network access
4. A singleton method BaseURL is used, set, and then access the server, you can directly use the relative path

Code Walkthrough General Code Walkthrough

- (void) Postlogin {Afhttprequestoperationmanager *mgr = [Afhttprequestoperationmanager manager];Nsdictionary *params = @{@ "username":@ "Zhang San & John Doe",@ "Password":@ "123"}; [Mgr POST:@ "http://localhost/login.php" Parameters:params success:^ (afhttprequestoperation *operation,ID responseobject) {NSLog (@ "POST Login%@", responseobject); } failure:^ (Afhttprequestoperation *operation,Nserror *error) {NSLog (@ "%@", error); }];} - (void) GetLogin2 {Afhttprequestoperationmanager *mgr = [Afhttprequestoperationmanager manager];Nsdictionary *params = @{@ "username":@ "Zhang San & John Doe",@ "Password":@ "123"}; [Mgr GET:@ "http://localhost/login.php" Parameters:params success:^ (afhttprequestoperation *operation,ID responseobject) {NSLog (@ "GET Login%@", responseobject); } failure:^ (Afhttprequestoperation *operation,Nserror *error) {NSLog (@ "%@", error); }];} - (void) GetLogin1 {Afhttprequestoperationmanager *mgr = [Afhttprequestoperationmanager manager]; [Mgr GET:@ "http://localhost/login.php?username=zhangsan&password=123" Parameters:Nil success:^ (Afhttprequestoperation *operation,ID responseobject) {NSLog (@ "%@", responseobject); } failure:^ (Afhttprequestoperation *operation, nserror *error) { nslog (@ "%@", error);}];} -(void) getdemo {Afhttprequestoperationmanager *mgr = [Afhttprequestoperationmanager Manager]; [Mgr Get:@ "Http://localhost/demo.json" Parameters:nil success:^ (afhttprequestoperation *operation, id responseobject) { nslog (@ "%@%@%@", Responseobject, [Responseobject class], [ Span class= "hljs-built_in" >nsthread CurrentThread]); } failure:^ (Afhttprequestoperation *operation, nserror *error) { nslog (@ "%@", error);}];}       

Walkthrough Summary

• Programmers don't need to know URL , use URL strings directly
• Automatic JSON deserialization of the implementation
• Network access completion callback is in the main thread, programmers do not need to consider inter-thread communication
• URLParameters can be formatted using the ' Dictionary 的形式拼接，程序员不在需要考虑 URL '
• Programmers do not need to consider percent escapes
  • The percent-semicolon escape in OC is defective, and special characters such as &+= with OC's percent escape are not good, and this time it is necessary to use the method provided in AFN
• Programmers don't need to know HTTP the method, just pick the word!

XML Parsing sax Parsing

tools.responseSerializer = [AFXMLParserResponseSerializer serializer];

DOM parsing

tools.responseSerializer =[AFHTTPResponseSerializer serializer];

Multi-valued parameters

NetworkTools *tools = [NetworkTools sharedNetworkTools];NSDictionary *params = @{@"city": @[@"bj", @"sh", @"gz"]};[tools GET:@"weather.php" parameters:params success:^(NSURLSessionDataTask *task, id responseObject) { NSLog(@"%@", responseObject);} failure:^(NSURLSessionDataTask *task, NSError *error) { NSLog(@"%@", error);}];

PUT Upload & Progress follow up

- (void) Putupload {networktools *tools = [Networktools sharednetworktools];NSString *urlstring =@ "Http://localhost/uploads/321.png";Nsurl *url = [Nsurl Urlwithstring:urlstring]; Nsmutableurlrequest *request = [Nsmutableurlrequest Requestwithurl:url]; Request. HttpMethod =@ "PUT";Nsurl *fileurl = [[NSBundle Mainbundle] Urlforresource:@ "001.png" withextension:NIL]; Nsprogress *progress =Nil [Tools Uploadtaskwithrequest:request Fromfile:fileurl progress:&progress completionhandler:^ (NSURLResponse * ResponseID Responseobject,Nserror *error) {NSLog (@ "%@%@", response, Responseobject); }] [resume];//KVO [progress addobserver: Selfforkeypath:@ "Completedunitcount" options:nskeyvalueobservingoptionnew Context:nil];} -(void) Observevalueforkeypath: (nsstring *) keypath ofobject: (ID) object change: (nsdictionary *) Change context: (void *) Context { if ([Object Iskindofclass:[nsprogress class]]) {nsprogress *progress = object; C10>nslog (@ "%@-%@-%f", Progress. Localizeddescription, Progress. Localizedadditionaldescription, Progress. fractioncompleted); }}

Network Connection Status Monitoring

[Tools. Reachabilitymanager setreachabilitystatuschangeblock:^ (afnetworkreachabilitystatus status) {NSLog (@ "%zd", status); switch (status) {case Afnetworkreachabilitystatusnotreachab Le: nslog (@ "Not Connected"); break; case Afnetworkreachabilitystatusreachableviawifi: NSLog ( Span class= "hljs-string" >@ "Wi-Fi"); break; case Afnetworkreachabilitystatusreachableviawwan: NSLog ( Span class= "hljs-string" >@ "3G"); break; default: nslog (@ "Unknown"); break; }}]; [Tools.reachabilitymanager startmonitoring];        

Afnetworking Self-summary