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Editorial Team
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Asked: 2026-05-30T01:05:01+00:00

An Activity may inflate an arbitrary layout xml that may or may not have

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An Activity may inflate an arbitrary layout xml that may or may not have a Fragment placeholder in it.

If it does , the Fragment will be instantiated and attached to the Activity.

Is there any way to get a reference to the Fragment from the Activity that has been attached to it ?

FragmentManger.findFragmentById() assumes you know the ID in advance to make it work but in this situation I am proposing, it is not available.

The behavior I’d ideally like to have is that the Activity is aware of any Fragments attaching itself to it so that it may respond to it.

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1 Answer

  1. Editorial Team

    Whenever a fragment is attached to an activity the following callback method is called with the fragment attached as the parameter, you can use it store the reference.

    onAttachFragment(Fragment fragment)

    http://developer.android.com/reference/android/app/Activity.html#onAttachFragment(android.app.Fragment)

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