onActivityReenter lifecycle method for Fragments

Question

I wanna get notified when my Fragment reenters before a shared element transition happens, like I can do with the Activities onActivityReenter method. Is there a similar way I can do this for fragments?

Answer 1

While there's no onActivityReenter method in Fragment, what I've found myself doing is calling a public method on my Fragment from the Activity.

Define a public method in your Fragment class:

public void onReenter(Intent data) {
   // Do whatever with the data here
}

Then just call it when onActivityReenter is called in your Activity:

@Override
public void onActivityReenter(int resultCode, Intent data) {
    super.onActivityReenter(resultCode, data);
    ItemFragment fragment = (ItemFragment) getSupportFragmentManager().findFragmentByTag(ITEM_TAG);
    if (fragment != null) {
        fragment.onReenter(data);
    }
}