• 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.....");
    }
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  • 原文地址:https://www.cnblogs.com/ceasar/p/5249371.html
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