AFN Implementing File Download

#import "ViewController.h"

#import "AFNetworking.h"

@interface viewcontroller ()

@end

@implementation Viewcontroller

-(void) Touchesbegan: (nsset<uitouch *> *) touches withevent: (uievent *) event

{

[self download];

}

-(void) Download

{

//1. Create a Session manager

afhttpsessionmanager *manager =[afhttpsessionmanager manager];

nsurl *url = [nsurl urlwithstring:@ "Http://120.25.226.186:32812/resources/videos /minion_01.mp4 "];

nsurlrequest *request = [nsurlrequest requestwithurl: url];

//2. Download File

/*

first parameter : Request object

The second parameter :p a rogress progress callback downloadprogress

The third parameter :d estination callback ( target location )

has a return value

TargetPath: Temporary file path

Response: Response header information

Fourth parameter : Completionhandler callback after download is complete

FilePath: The final file path

*/

nsurlsessiondownloadtask *download = [Manager downloadtaskwithrequest: Request Progress: ^ ( nsprogress * _nonnull downloadprogress) {

// monitor download Progress

//completedunitcount The size of the data already downloaded

//totalunitcount The size of the file data

NSLog(@ "%f",1.0 *downloadprogress. Completedunitcount /downloadprogress. Totalunitcount);

} Destination: ^nsurl * _nonnull(nsurl * _nonnull TargetPath, Nsurlresponse * _nonnull response) {

nsstring *fullpath = [[nssearchpathfordirectoriesindomains(nscachesdirectory, Nsuserdomainmask, YES) lastobject] stringbyappendingpathcomponent: Response. Suggestedfilename];

NSLog(@ "targetpath:%@", TargetPath);

NSLog(@ "fullpath:%@", FullPath);

return [nsurl fileurlwithpath: FullPath];

} Completionhandler: ^ (nsurlresponse * _nonnull response, nsurl * _nullable FilePath, nserror * _nullable error) {

NSLog(@ "%@", FilePath);

}];

//3. Execute Task

[Download resume];

}

@end

AFN Implementing File Download