android 级联菜单

android listview级联三菜单选择地区，本地数据库sqlite级联地区，item选中不变色

 

适配器  核心代码如下：

public class ListAdapter extends BaseAdapter {

    private Context context;

    private List<item> myList;

    private LayoutInflater mInflater;

    private int selectedPosition = -1;// 选中的位置

    public ListAdapter(Context context, List<item> myList,int selected) {

        this.context = context;

        this.myList = myList;

        this.mInflater = LayoutInflater.from(this.context);

        selectedPosition=selected;

    }

 

    public int getCount() {

        return myList.size();

    }

 

    public Object getItem(int position) {

        return myList.get(position);

    }

 

    public long getItemId(int position) {

        return position;

    }

    public void setSelectedPosition(int position) {

        selectedPosition = position;

    }

 

    public View getView(final int position,  View convertView, final ViewGroup parent) {

         

         ViewHolder holder = null;

        if (convertView == null) {

            holder = new ViewHolder();

            convertView = mInflater.inflate(R.layout.block_list_item, null);

 

            convertView.setTag(holder);

        } else {

            holder = (ViewHolder) convertView.getTag();

        }

        final View cView=convertView;

        final ViewHolder cHolder=holder;

        holder.iLayout=(LinearLayout) convertView.findViewById(R.id.ll_root);

        holder.name = (TextView) convertView.findViewById(R.id.tv_name);

        holder.img = (ImageView) convertView.findViewById(R.id.iv_right);

        holder.name.setText(myList.get(position).getName());

        System.out.println(Item值为：+selectedPosition);

        System.out.println(自带的为：+position);

        if (selectedPosition == position) {

            holder.iLayout.setSelected(true);

            holder.iLayout.setPressed(true);

            holder.iLayout.setBackgroundColor(Color.RED);

        } else {

            holder.iLayout.setSelected(false);

            holder.iLayout.setPressed(false);

            holder.iLayout.setBackgroundColor(Color.TRANSPARENT);  

 

        }

 

        return convertView;

    }

     

    class ButtonView {

        int layoutViewId;

 

        ButtonView(int tId) {

            layoutViewId = tId;

        }

    }

      

 

    public final class ViewHolder {

        public TextView name;

        public ImageView img;

        public LinearLayout iLayout;

    }

 

}

 

参考：http://www.2cto.com/kf/201407/321095.html