跳轉到根檢視並跳轉到第一個tabbar第一個頁面

// 直接跳轉到跟檢視
                self.navigationController.tabBarController.hidesBottomBarWhenPushed=NO;
                self.navigationController.tabBarController.selectedIndex=0;  //0

// 先跳轉到自身tabbar主頁,再跳轉到第一個tabbar主頁 (push出來的走這個方法)
                for (UIViewController *vc in self.navigationController.viewControllers) {
                    if ([vc isKindOfClass:[TrainingProgramTableViewController class]]) {
                        [self.navigationController.tabBarController setSelectedIndex:0];
                        [self.navigationController popToRootViewControllerAnimated:NO];
                       
                    }
                }