iOS保存App中的照片到系统相册或自建相册的方法

                if (group) {
                    [weakSelf assetForURL:assetURL resultBlock:^(ALAsset *asset) {
                        [group addAsset:asset];
                        if (completionBlock) {
                            completionBlock();
                        }
                    } failureBlock:^(NSError *error) {
                        if (failureBlock) {
                            failureBlock(error);
                        }
                    }];
                } else {
                    AddAsset(weakSelf, assetURL);
                }
            } failureBlock:^(NSError *error) {
                AddAsset(weakSelf, assetURL);
            }];
        } else {
            if (completionBlock) {
                completionBlock();
            }
        }
    }];
}

 

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