1. Uni. NavigateTo () jumps to an application page, the current page is not out of the stack
  2. Uni.redirectto () closes the current page and redirects to a page in the application. Current page is out of the stack

  3. Uni.relaunch () closes all pages and opens to a page within the app

  4. Uni.switchtab () jumps to the tabBar page and closes all other non-tabbar pages.