AFNetworking 3.0 断点续传 使用记录
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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....."); }
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