iOS：从url下载视频并保存在图库中……？

Question

我不知道如何从 url 下载视频并将其保存到图库。

BOOL compatible = UIVideoAtPathIsCompatibleWithSavedPhotosAlbum([videoURL path]);
        // save
        NSLog(@"BOOL compatible....%hhd",compatible);

        if (compatible){
            UISaveVideoAtPathToSavedPhotosAlbum([videoURL path], nil, nil, nil);
            NSLog(@"SAVED!!!! %@",[videoURL path]);
        }else
        {
            NSLog(@"INCOMPATIBLE...");
        }

下载视频时显示错误：https://api.quickblox.com/blobs/4185382/download无法保存到已保存的相册：Error Domain=NSURLErrorDomain Code=-1100 "The requested URL was not found on this server." UserInfo=0x7f9c13ccb130 {NSUnderlyingError=0x7f9c13cc3aa0 "The operation couldn’t be completed. No such file or directory" ,

Answer 1

来自 Apple's documentation 我认为 UIVideoAtPathIsCompatibleWithSavedPhotosAlbum 仅适用于本地文件，不适用于远程文件。 UISaveVideoAtPathToSavedPhotosAlbum.

也是如此

您需要先将文件下载到您的设备，然后才能使用 UIVideoAtPathIsCompatibleWithSavedPhotosAlbum。我建议使用 AFNetworking 之类的东西来做到这一点。

Answer 2

使用这个code.I希望它能正常工作。:

    -(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 !");
    });
    }

});
}

iOS：从url下载视频并保存在图库中……？

iOS: Download video from url and save in gallery......?

iphone

ios

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