The specified child already has a parent. You must call removeView() on the child's parent first (Android)

Question

The error message says what You should do.

// TEXTVIEW
if(tv.getParent() != null) {
    ((ViewGroup)tv.getParent()).removeView(tv); // <- fix
}
layout.addView(tv); //  <==========  ERROR IN THIS LINE DURING 2ND RUN
// EDITTEXT

simply pass the argument

attachtoroot = false

View view = inflater.inflate(R.layout.child_layout_to_merge, parent_layout, false);

I came here on searching the error with my recyclerview but the solution didn't work (obviously). I have written the cause and the solution for it in case of recyclerview. Hope it helps someone.

The error is caused if in the onCreateViewHolder() the following method is followed:

layoutInflater = LayoutInflater.from(context);
return new VH(layoutInflater.inflate(R.layout.single_row, parent));

Instead it should be

return new VH(layoutInflater.inflate(R.layout.single_row, null));

I got this message while trying to commit a fragment using attach to root to true instead of false, like so:

return inflater.inflate(R.layout.fragment_profile, container, true)

After doing:

return inflater.inflate(R.layout.fragment_profile, container, false)

It worked.

frameLayout.addView(bannerAdView); <----- if you get error on this line the do like below..

if (bannerAdView.getParent() != null)

  ((ViewGroup) bannerAdView.getParent()).removeView(bannerAdView);

   frameLayout.addView(bannerAdView);     <------ now added view

If other solution is not working like:

View view = inflater.inflate(R.layout.child_layout_to_merge, parent_layout, false);

check for what are you returning from onCreateView of fragment is it single view or viewgroup? in my case I had viewpager on root of xml of fragment and I was returning viewpager, when i added viewgroup in layout i didnt updated that i have to return viewgroup now, not viewpager(view).

My error was define the view like this:

view = inflater.inflate(R.layout.qr_fragment, container);

It was missing:

view = inflater.inflate(R.layout.qr_fragment, container, false);