android - In custom LayoutManager (extends RecyclerView.LayoutManager) RecyclerView.getChildViewHolderInt NullPointerException issue -

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after trying similar (simplify version):

    @override     public void onlayoutchildren(recyclerview.recycler recycler, recyclerview.state state) {          ....          addview(new textview(mrecyclerview.getcontext()))     }

i have exception:

    java.lang.nullpointerexception         @ android.support.v7.widget.recyclerview.getchildviewholderint(recyclerview.java:2497)         @ android.support.v7.widget.recyclerview$layoutmanager.addviewint(recyclerview.java:4807)         @ android.support.v7.widget.recyclerview$layoutmanager.addview(recyclerview.java:4803)         @ android.support.v7.widget.recyclerview$layoutmanager.addview(recyclerview.java:4791)

i can't add recyclerview child view without viewholder?

new children should never added recyclerview directly in layout manager. views adds should obtained attached recyclerview.adapter, accounted , have valid viewholder attached.


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