How to create on click event for children in Expandable list

Question

I am playing around with this example. http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/ExpandableList2.html

I cannot figure

Answer 1

You should specify location of items in expandable list like this

listView.setOnChildClickListener(new OnChildClickListener()
{
    @Override
    public boolean onChildClick(ExpandableListView parent, View v, int group_position, int child_position, long id)
    {
        if(group_position==0 && child_position==0){
            TryFragment secondFragment = (TryFragment) SampleActivity.this.getFragmentManager().findFragmentById(R.id.tryFragment);
            secondFragment.getView().setVisibility(View.VISIBLE);
        } else if(group_position==2 && child_position==2){
            TryFragment secondFragment = (TryFragment) SampleActivity.this.getFragmentManager().findFragmentById(R.id.tryFragment);
            secondFragment.getView().setVisibility(View.VISIBLE);
        }
        return false;
    }
});