My fragments in viewpager tab dont refresh

Question

i got viewpager with 4 tabs .. in each tab there is a fragment. my first tab is a fragment with a form (for example Users) after i click save, the data is inserted in the da

Answer 1

In my experience, ViewPagers keep:

• Your current tab
• & 1 tab either side in memory

So when you switch between 1 and 2, nothing is happening under the hood - it's like they are simply being hidden / shown.

But when you navigate to tab 4, tabs 1 & 2 are destroyed (onDestroy() called), so when you navigate back to either of them, they are being re-created fresh (onCreate() called).

As psykhi suggests, you could setOffScreenPageLimit() to 0, so that each fragment is created every time you navigate to it.

If you were interested in keeping the other pages in memory for performance purposes, as they were designed with this is mind, you could use a messaging/event publishing system to send a message from tab 1 to tab 2 telling it to update when you submit the form on tab 1.