Android ListView ImageView实现单选按钮实例

1 if (lastposition == position){
2           viewHolder.setImageResource(R.id.iv_yuandian1,R.mipmap.ic_button_checked);
3         } else {
4           viewHolder.setImageResource(R.id.iv_yuandian1,R.mipmap.ic_button_unchecked);
5         }

lv_choosecompany.setOnItemClickListener(new AdapterView.OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
        //把当前选中的条目加上选中效果
        old_imageView = (ImageView) view.findViewById(R.id.iv_yuandian1);
        old_imageView.setImageResource(R.mipmap.ic_button_checked);

        new_imageView = (ImageView)view.findViewById(R.id.iv_yuandian1);
        if (lastposition != -1 && lastposition != position){
          //如果已经单击过条目并且上次保存的item位置和当前位置不同
          new_imageView.setImageResource(R.mipmap.ic_button_unchecked);//把上次选中的样式去掉
        }
        new_imageView = old_imageView;//把当前的条目保存下来
        lastposition = position;//把当前的位置保存下来

        listViewAdapter.notifyDataSetChanged();

      }

    });