ExpandableListView -UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView

Question

I am implementing Expandable List view in android and i am getting the above titled error. Please help me.

Main activity is -

package com.expand;

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Answer 1

As were noted above,

Instead of not using a parent at all, you should simply tell the Inflater not to attach the inflated view to the parent with

 convertView = inflator.inflate(R.layout.child_rows, parent, false);     

See also this answer.

The reason is that adapter takes care of attaching views to parent itself.

Answer 2

Seems like Adapterview does not allow adding new view, I encountered same problem

Solve it by replacing following line

convertView  = inflator.inflate(R.layout.child_rows, parent);

to

convertView  = inflator.inflate(R.layout.child_rows, null);

UPDATE

Instead of not using a parent at all, you should simply tell the Inflater not to attach the inflated view to the parent with

convertView = inflator.inflate(R.layout.child_rows, parent, false); 

See also this answer.

The reason is that adapter takes care of attaching views to parent itself.

Answer 3

Note that you can also get this error when your layout xml is invalid.

Answer 4

According to Android Lint your child view should always provide a reference to its parent view when inflated. I had the exact same error in my code. Is was occurring because the TextView was placed inside the ExpandableListView. When I rearranged my xml layout the error stopped appearing.

Answer 5

This error can also be caused because of instant run feature. I was working on listview and because of this error app kept crashing. Uninstalling the app and running again resolved the error.