add DataSetObserver callback

ogaclejapan / SmartTabLayout

A custom ViewPager title strip which gives continuous feedback to the user when scrolling

Apache License 2.0

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add DataSetObserver callback #304

Open heaoven opened 4 years ago

heaoven commented 4 years ago

Hello @ogaclejapan When I use this library,find a issue. My adapter count is change,but TabLayout isn't change,then crash occured. So I pull request to add datasetobserver to fix this issue.