ContactList: Separate creation of ContactListAdapter and managment of the group list This is two separate things. getContactListAdapter is called in ContactListFragment.onActivityCreated() which is during a fragment transaction. Management of the group list calls FragmentPagerAdapter.notifyDataSetChanged() which repopulate the FragmentPagerAdapter and to do so calls FragmentManager.executePendingTransactions() in a recursive way and is not allowed (IllegalStateException).

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<?xml version="1.0" encoding="utf-8"?>

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<set xmlns:android="http://schemas.android.com/apk/res/android">

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    <rotate android:fromDegrees="0" android:toDegrees="360"

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	android:pivotX="50%" android:pivotY="50%"

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	android:duration="5000"

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	android:repeatMode="restart"

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	android:repeatCount="infinite" />

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</set>