RecyclerView programmatically click

Question

I'm trying to programmatically click on an item of a recyclerView. I'm using:

recyclerView.findViewHolderForAdapterPosition(index).itemView.performClick();

This perfectly works when the index is of a visible item. If the item is not visible (at the last position of the recyclerview, for istance), an Exception is thrown.

What can I do?

Answer 1

I just had a similar question with yours.And I had solve it! Here is what I did.

xxx.mRecyclerView.postDelayed(new Runnable() {
            @Override
            public void run() {
                xx.mRecyclerView.scrollToPosition(position);
            }
        },300);


        xxx.mRecyclerView.postDelayed(new Runnable() {
            @Override
            public void run() {
                xxx.mRecyclerView.findViewHolderForAdapterPosition(position).itemView.performClick();
                }
            },400);
        }

You can scroll to the specific item, then perform click. Because the doc say

If the item at the given position is not laid out, it will not create a new one.

But I know the adapter has the data, so scroll to it first, and findViewHolderForAdapterPositionwill not be null.

One more thing, I do not know how you use the RecyclerView. In my application, I use it in a fragment, and I don not know why we should delay it scroll and perform click. (Maybe it is because of the life circle?).But this really works.