iOS 将视频保存为livephoto图片，设置为手机动态封面图

/**
 将视频转为livephoto保存到本地

 @param videoPath 视频地址
 @param imagePath 图片地址
 @param saveHandle 返回回调
 */
- (void)saveLivePhotoWithVideoPath:(NSString *)videoPath
                         imagePath:(NSString *)imagePath
                            handle:(void(^)(BOOL,NSError *))saveHandle;

- (void)saveLivePhotoWithVideoPath:(NSString *)videoPath imagePath:(NSString *)imagePath handle:(void(^)(BOOL,NSError *))saveHandle{
    [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
        PHAssetCreationRequest *creationRequest = [PHAssetCreationRequest creationRequestForAsset];
        PHAssetResourceCreationOptions *options = [[PHAssetResourceCreationOptions alloc] init];
        
        [creationRequest addResourceWithType:PHAssetResourceTypePairedVideo fileURL:[NSURL fileURLWithPath:videoPath] options:options];
        [creationRequest addResourceWithType:PHAssetResourceTypePhoto fileURL:[NSURL fileURLWithPath:imagePath] options:options];
        
    } completionHandler:^(BOOL success, NSError * _Nullable error) {
        saveHandle(success,error);
    }];
}