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How to make image buttons only appear when listview item is clicked?

Screenshot with no item clicked 在此处输入图片说明

What i want to achieve: 在此处输入图片说明

This will work:

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

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