ios - 如何将视频从文档目录保存到图库？

Question

如何将文档目录中的视频保存到iOS中的画廊，这里我从服务器下载了视频并保存在文档目录中，现在我想将它移动到画廊。

Answer 1

UISaveVideoAtPathToSavedPhotosAlbum(sourcePath,nil,nil,nil);

您可以将 sourcePath 作为

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

附加您的路径或文件名以获取 sourcePath。

NSString *sourcePath = [documentsDirectory stringByAppendingPathComponent:@"youVideo.mp4"]; 

Answer 2

首先，您需要获取特定的视频路径或文档目录，例如：-

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"youVideo.mp4"]; 
NSURL *movieURL = [NSURL fileURLWithPath:path]; 


 ALAssetsLibrary* library = [[[ALAssetsLibrary alloc] init] autorelease];
[library writeVideoAtPathToSavedPhotosAlbum:movieURL
                            completionBlock:^(NSURL *assetURL, NSError *error){/*notify of completion*/}];