tree 0230d9df508ed4a53251b9a9966af3690df22b8d
parent f6b1b744cfa13f1df45fcda94dd104264d4d6dde
author Chris Banes <chrisbanes@google.com> 1446557476 +0000
committer Chris Banes <chrisbanes@google.com> 1446807560 +0000

Add dynamic tab support to TabLayout

TabLayout will now automatically invalidate
and re-populate itself when the linked PagerAdapter
has it's data set changed.

Two objects Pools are used to minimize churn when the
adapter is updated.

A small change had to be made to ViewPager + PagerAdapter's
observing functionality. Observable will always dispatch
changed events in reverse added order, which means that
ViewPager is the last to know. This means that any later
added Observer can't update the ViewPager (since it
doesn't know about the data set change yet). This is fixed
by moving ViewPager's observer out of the Observable and
always calling it first.

BUG: 20908355

Change-Id: I631620ff186047ae57e928db78f5ca77a0b80306