title: How to set state between tabbar tabs in flutter?
body: <p>I have tackeled without any success with problem...</p>
  <p>My main page is stateful class with tabbar with two tabs. First tab has some text from global variables and couple of textfields that also are prefilled  with global variables.
  Second tab has a button and ontap it calls setstate that changes variables, that are used on first tab and then animates to first tab.
  My problem is that first tabs text doesnt change to new value. At the same time textfields will have new values. If i add print command before returning text on first tab, code will print out new values, but state for text is not set, at the same time textfields state will be set.
  Its not possible at moment to add code, but i hope i described mu problem good enough.</p>
  <p>Thank You!</p>