藍懿教育 Session下載

標籤：

Session下載任務

【無下載過程】

NSString *path = @"";

    

    NSURL *url = [NSURL URLWithString:path];

    

    NSURLSession *session = [NSURLSession sharedSession];

    

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

    

    NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:request completionHandler:^(NSURL * _Nullable location, NSURLResponse * _Nullable response, NSError * _Nullable error) {

        

        NSFileManager *fm = [NSFileManager defaultManager];

        

        [fm moveItemAtURL:location toURL:[NSURL fileURLWithPath:@"/Users/nil/Desktop/SONG.mp3"] error:nil];

    

    }];

    

    [task resume];

 

【有下載過程】

 

 NSString *path = @“ ”;

    

    NSURL *url = [NSURL URLWithString:path];

    

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

    

    NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];

    

    NSURLSession *session = [NSURLSession sessionWithConfiguration:config delegate:self delegateQueue:[NSOperationQueue mainQueue]];

    

    NSURLSessionDownloadTask *task = [session downloadTaskWithRequest:request];

    

    [task resume];

 

-(void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask didWriteData:(int64_t)bytesWritten totalBytesWritten:(int64_t)totalBytesWritten totalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite{

    //每部分大小、總大小、當前已下載大小

    NSLog(@"%lld---%lld---%lld",bytesWritten,totalBytesExpectedToWrite,totalBytesWritten);

    

    self.myPV.progress = totalBytesWritten*1.0/totalBytesExpectedToWrite;

}

 

 

- (void)URLSession:(NSURLSession *)session downloadTask:(NSURLSessionDownloadTask *)downloadTask

didFinishDownloadingToURL:(NSURL *)location{

    NSFileManager *fm = [NSFileManager defaultManager];

    [fm moveItemAtURL:location toURL:[NSURL fileURLWithPath:@"/Users/nil/Desktop/haha.mp3"] error:nil];

 

}

藍懿教育 Session下載