Writing an android library, I'm listening to fragments' life-cycle using supportFragmentManager.registerFragmentLifecycleCallbacks. Having the fragment object in the callbacks, how can I check whether the fragment is a static fragment (defined in the xml file) or a dynamic one (defined in a container like FrameLayout)?
I found the solution myself and it was actually a pretty easy one.
The Fragment class has a method called isInLayout() which returns true if the fragment has been created using the <fragment> tag.
Here is the documentation for the method:
public final boolean isInLayout ()
Return true if the layout is included as part of an activity view hierarchy via the
<fragment>tag. This will always be true when fragments are created through the<fragment>tag, except in the case where an old fragment is restored from a previous state and it does not appear in the layout of the current state.