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[操作系统]AFNetworking 3.0 断点续传 使用记录


最近项目中用到了压缩包下载,使用AFNetworking 3.0 下载压缩包 支持断点续传 代码如下:

#import "HDInternet_handler.h"#import "AFNetworking.h"#import "ASIHTTPRequest.h"@interface HDInternet_handler ()<NSURLSessionDelegate>@end@implementation HDInternet_handler{  NSURLSessionDownloadTask *_downloadTask;}-(void)test{  NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];    AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithSessionConfiguration:configuration];    manager.requestSerializer.timeoutInterval = 3.0;    [manager setDownloadTaskDidWriteDataBlock:^(NSURLSession * _Nonnull session, NSURLSessionDownloadTask * _Nonnull downloadTask, int64_t bytesWritten, int64_t totalBytesWritten, int64_t totalBytesExpectedToWrite) {        LOG(@"%.2f / %.2f",(float)totalBytesWritten/1024.0/1024.0,(float)totalBytesExpectedToWrite/1024.0/1024.0);  }];    NSURL *URL = [NSURL URLWithString:@"http://192.168.10.155/12345/HD_DEMO_RES/CHINESE.zip"];//http://192.168.10.155/12345/HD_DEMO_RES/CHINESE.zip  NSURLRequest *request = [NSURLRequest requestWithURL:URL];    _downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {        NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSCachesDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];    return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]];  } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {      }];    [_downloadTask resume];  [NSTimer scheduledTimerWithTimeInterval:3.0 target:self selector:@selector(suspend) userInfo:nil repeats:NO];}-(void)suspend{  //暂停下载  [_downloadTask suspend];  LOG(@"SUSPEND.....SUSPEND....SUSPEND....SUSPEND....SUSPEND....SUSPEND....");  [NSTimer scheduledTimerWithTimeInterval:6.0 target:self selector:@selector(resume) userInfo:nil repeats:NO];}-(void)resume{//继续下载  [_downloadTask resume];  LOG(@"RESUME.....RESUME.....RESUME.....RESUME.....RESUME.....RESUME.....RESUME.....");}