如何给gridview的注脚添加onclick事件

如何给gridview的注脚添加onclick事件
public class SinglePaneContainer extends FrameLayout implements Container { private ItemListView listView; public SinglePaneContainer(Context context, AttributeSet attrs) { super(context, attrs); } @Override protected void onFinishInflate() { super.onFinishInflate(); listView = (ItemListView) getChildAt(0); } public boolean onBackPressed() { if (!listViewAttached()) { removeViewAt(0); addView(listView); return true; } return false; } @Override public void showItem(String item) { if (listViewAttached()) { removeViewAt(0); View.inflate(getContext(), R.layout.detail, this); } MyDetailView detailView = (MyDetailView) getChildAt(0); detailView.setItem(item); } private boolean listViewAttached() { return listView.getParent() != null; } }