Is there isDestroyed() for Fragment?

Question

Activity has isDestroyed(), but I can't find the counterpart for Fragment.

I could override onDestroyed() to set a flag for myself but I assume there's an existing solution.

I'm trying to check whether a fragment is destroyed or not in a network response before updating UI in the fragment.

Any help will be greatly appreciated. Thanks!

Answer 1

You can create a Fragment as your parent of other fragments and use following code to check is destroyed functionality.

public abstract class ASafeFragment extends Fragment
{
    protected boolean isSafe()
    {
        return !(this.isRemoving() || this.getActivity() == null || this.isDetached() || !this.isAdded() || this.getView() == null);
    }
...
} 

or

public static boolean isSafeFragment( Fragment frag )
{
    return !(frag.isRemoving() || frag.getActivity() == null || frag.isDetached() || !frag.isAdded() || frag.getView() == null );   
}