如何使图像按钮仅在单击列表视图项目时出现？

Question

Screenshot with no item clicked

What i want to achieve:

Answer 1

This will work:

  lv.setOnItemClickListener(new OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position,
                        long id) {
                    btn.setVisibility(view.VISIBLE);
                }
            });