[android-developers] oncreateview() called twice of added fragments of appcompat action bar

I followed the way that http://developer.android.com/guide/topics/ui/actionbar.html#Tabs says to use appcompat actionbar to add tabs.

However, I found that the oncreateview() of added fragments  will be called twice.

After searching the web, I found there is a workaround solution at http://stackoverflow.com/questions/10983396/fragment-oncreateview-and-onactivitycreated-called-twice .

Nevertheless, I am stunned that following what the official documentation says leads to the problem of oncreateview() of added fragments  being called twice.

I wonder which is the correct implementation.

Or is it a bug of either the documentation/samples or the appcompat library?

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