Android - ListView - performItemClick

Question

I\'m facing some difficults when I try to use the performItemClick funcion of the ListView.

All I want to do is to perform a click programatically i

Answer 1

just should use performItemClick() and it's okay.

listView.performItemClick(listView.getAdapter().getView(listView.getSelectedItemId, null, null), listView.getSelectedItemId, listView.getAdapter().getItemId(listView.getSelectedItemId));

Answer 2

I tried the code below and it worked.

getListView().performItemClick(null, 0, getListAdapter().getItemId(0));

The first parameter (view) can be null.

Answer 3

I just meet this freak problem today , and I try me best to deal with it. My condition is , when I first init the layout , I need make some item checked. But when I use gridView.getChildAt(position) , always return null. I met this problem before , caused by Not finishing drawing layout . So I send a post message . handler.postDelayed( .. , ..) , It works. Thanks who motion this Exception.

Answer 4

This works best for me. Run this on the main thread.

new Handler().post(new Runnable() {
    @Override
    public void run() {
        mList.performItemClick(
                mList.getChildAt(mActivePosition),
                mActivePosition,
                mList.getAdapter().getItemId(mActivePosition));
    }
});

This is similar to Arun Jose's answer, but it will queue a message to the main thread to give the ListView some time to initiate.

Answer 5

At Firstly I tried to use this code in my Fragment(Master/Detail -> NameListFragment)

getListView().performItemClick(null, 0, getListView().getAdapter().getItemId(0));

But it didn't work. When I did @Override onStart() method in fragment and I moved my code to onStart(). After that it works properly for me.

Answer 6

This work for me If you would get weird result when using getView, this is because the list item you want does not exist within visible parts. Use below:

private View getViewFromAdapterByPosition(int position, ListView listView) 
{
        View view;
        int firstVisiblePos = listView.getFirstVisiblePosition();
        int lastVisiblePos = listView.getLastVisiblePosition();

        if (position < firstVisiblePos || position > lastVisiblePos) {
            view = listView.getAdapter().getView(position, null, listView);
        } else {
            view = listView.getChildAt(position - firstVisiblePos);
        }
        return view;
    }

And then,

listView.performItemClick(getViewFromAdapterByPosition(index, listView), index, 0);