[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
 }];

  YANNavigationViewController *rootVC = [YANNavigationViewController navigationViewControllerRowHeight:65 columnNumber:3 previewSpacing:10];
  rootVC.delegate_ = self;
  rootVC.maxSelectImageCount = 6;
  [self presentViewController:rootVC animated:YES completion:^{ }];

/**
预览页面最大选择数,默认值为3
*/
@property(nonatomic, assign) NSInteger maxSelectImageCount;
/**
初始化

@param rowHeight 相册列表页面cell高度 默认值为65
@param columnNumber 预览页面列数 默认为4
@param previewSpacing 预览页面cell间距 默认为2
*/
+ (YANNavigationViewController *)navigationViewControllerRowHeight:(CGFloat)rowHeight columnNumber:(NSInteger)columnNumber previewSpacing:(CGFloat)previewSpacing;

/**
添加右侧‘取消’按钮

@param viewController 需要添加的控制器
*/
- (void)addLeftCancleToViewController:(UIViewController *)viewController;

// 获取选择的原图，点击发送时调用,
- (void)navigationViewControllerDisposeImage:(UIImage *)sendImage;