How to download video from url and save it in to document directory in iOS?

Question

How to download video from url and save it in to document directory in iOS

Answer 1

You can also implement same in Swift 2.0

class func downloadVideo(videoImageUrl:String)
{
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), {
        //All stuff here

        let url=NSURL(string: videoImageUrl)
        let urlData=NSData(contentsOfURL: url!)

        if((urlData) != nil)
        {
            let documentsPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0]

            let fileName = videoImageUrl.lastPathComponent //.stringByDeletingPathExtension

            let filePath="\(documentsPath)/\(fileName)"

            //saving is done on main thread

            dispatch_async(dispatch_get_main_queue(), { () -> Void in

                 urlData?.writeToFile(filePath, atomically: true)
            })

        }
    })

}

Answer 2

You can download it using GCD.

-(void)downloadVideoAndSave :(NSString*)videoUrl
{
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

        NSData *yourVideoData=[NSData dataWithContentsOfURL:[NSURL URLWithString:videoUrl]];

        if (yourVideoData) {
            NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
            NSString *documentsDirectory = [paths objectAtIndex:0];

            NSString  *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"video.mp4"];

            if([yourVideoData writeToFile:videpPath atomically:YES])
            {
                NSLog(@"write successfull");
            }
            else{
                NSLog(@"write failed");
            }
        }
    });
}

Answer 3

You can use the NSURLConnection method sendAsynchronousRequest:queue:completionHandler:.

That one method will download an entire file into an NSData object and call your completion handler method once it's done.

If you can write a app that requires iOS 7 or later, you could also use the new NSURLSession API. That offers a lot more features.

If you search using those terms you should be able to find tutorials and sample apps illustrating both APIs.

Answer 4

use this code it is working in my current project

-(void)DownloadVideo
{
//download the file in a seperate thread.
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSLog(@"Downloading Started");
NSString *urlToDownload = @"http://www.somewhere.com/thefile.mp4";
NSURL  *url = [NSURL URLWithString:urlToDownload];
NSData *urlData = [NSData dataWithContentsOfURL:url];
if ( urlData )
    {
    NSArray       *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString  *documentsDirectory = [paths objectAtIndex:0];

    NSString  *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"thefile.mp4"];

    //saving is done on main thread
    dispatch_async(dispatch_get_main_queue(), ^{
        [urlData writeToFile:filePath atomically:YES];
        NSLog(@"File Saved !");
    });
    }

});
}