iOS 文件下载 AFHTTPSessionManager

记录一下，

 

-(void)downloadFile:(NSString *)FileUrl{

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:FileUrl]];

    MBProgressHUD *HUD = [MBProgressHUD showHUDAddedTo:self.view animated:YES];

    HUD.labelText  = @"下载中";

    HUD.square = YES;

    [self.view addSubview:HUD];

    

    NSURLSessionDownloadTask *downlaodTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {

        //计算文件的下载进度

        NSLog(@"%f",1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);

        

    } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {

        [MBProgressHUD hideHUDForView:self.view animated:YES];

        //文件的全路径

        NSString *fullpath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:response.suggestedFilename];

        NSURL *fileUrl = [NSURL fileURLWithPath:fullpath];

        NSLog(@"%@\n%@",targetPath,fullpath);

        return fileUrl;

        

    } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {

        [MBProgressHUD hideHUDForView:self.view animated:YES];

        NSLog(@"%@",filePath);

        NSString *str = [filePath path];//一定要转成string 不能用absoluteString，否则路径之前有file://

       /************************在此处处理下载完成后的操作，比如：展示************************/

    }];

    

    //3.执行Task

    [downlaodTask resume];

}