先引入頭文件

#import <PhotosUI/PhotosUI.h>
然后代碼如下

PHPhotoLibrary *photoLibrary = [PHPhotoLibrary sharedPhotoLibrary];
    [photoLibrary performChanges:^{
        [PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:[NSURL
    fileURLWithPath:videoFilePath]];
    } completionHandler:^(BOOL success, NSError * _Nullable error) {
        if (success) {
            NSLog(@"stopRecord=====已將視頻保存至相冊");
        } else {
            NSLog(@"stopRecord=====未能保存視頻到相冊 ==error:%@",error);


        }
    }];