1.界面切换UI：(UIViewController + UIScrollView)
self.pagerController= [[DMPagerViewController alloc]initWithViewControllers: @[_controllerCamera,_controllerFeeds,_controllerTimeline,]];
self.window= [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]];
[_window makeKeyAndVisible];
_window.rootViewController=self.pagerController;
self.pagerController.delegate=self;
2.等待加载动画（类方法创建初始化对象，并且添加到容器中显示）
[LBProgressHUD showHUDto:_vLoading color:CColor(255,255,255) size:48animated:YES];
[LBProgressHUD hideAllHUDsForView:_vLoading animated:YES];
3.弹出菜单框（UIWindow + WindowLevel + 类共创方法获取创建配置好的对象 + 显示方法）
ZFActionSheet *actionSheet = [ZFActionSheet actionSheetWithTitle:nil confirms:@[@"回复",[NSString stringWithFormat:@"分享%@的搜索号",_currentActionMoreFriend.username],@"清空已浏览消息",@"返回"]newsIndex:-1style:ZFActionSheetStyleDefault];
actionSheet.delegate=self;
[actionSheet showInView:self.view.window];
