MenuController when openPage everytime to create

I want to use MenuController to Nav. likes Demo. I have 3 pages.

But, I found, to create every time they switch page.I hope they can be reused.

so,Is there any way to solve ?

You might wanna spend some time to explain yourself better. No one is gonna be able to help you if you asks such unclear questions.

so sorry. my english is no good …
like this demo for sidemenu. when you openpage 「Getting Started」, and openpage 「List」. again open「Getting Started」. The 「Getting Started」be created again . so i want ask Is there any way to make repeated use page.

Anyway, thank you for your reply.