// Target角色，适配目标public interface FiveVolt{ publicint getVolt5();} //Adaptee角色，需要被转换的对象publicclassVolt220{ publicint getVolt220(){ return220; }} // adapter角色publicclassClassAdapter extends Volt220 implements FiveVolt{ @Override publicint getVolt5(){ return5; }}publicclassTest{ publicstaticvoid main(String[] args){ ClassAdapter adapter =newClassAdapter(); System.out.println("输出电压 : "+ adapter.getVolt5()); }}// Target角色，适配目标public interface FiveVolt{ publicint getVolt5();} // Adaptee角色,需要被转换的对象publicclassVolt220{ publicint getVolt220(){ return220; }} // 对象适配器publicclassObjectAdapter implements FiveVolt{ Volt220 mVolt220; publicObjectAdapter(Volt220 adaptee){ mVolt220 = adaptee; } publicint getVolt220(){ return mVolt220.getVolt220(); } @Override publicint getVolt5(){ return5; } }publicclassTest{ publicstaticvoid main(String[] args){ ClassAdapter adapter =newClassAdapter(); System.out.println("输出电压 : "+ adapter.getVolt5()); }}// 代码省略ListView myListView =(ListView)findViewById(listview_id);// 设置适配器myListView.setAdapter(newMyAdapter(context, myDatas)); // 适配器publicclassMyAdapter extends BaseAdapter{ privateLayoutInflater mInflater; List<String> mDatas ; publicMyAdapter(Context context,List<String> datas){ this.mInflater =LayoutInflater.from(context); mDatas = datas ; } @Override publicint getCount(){ return mDatas.size(); } @Override publicString getItem(int pos){ return mDatas.get(pos); } @Override publiclong getItemId(int pos){ return pos; } // 解析、设置、缓存convertView以及相关内容 @Override publicView getView(int position,View convertView,ViewGroup parent){ ViewHolder holder = null; // Item View的复用 if(convertView == null){ holder =newViewHolder(); convertView = mInflater.inflate(R.layout.my_listview_item, null); // 获取title holder.title =(TextView)convertView.findViewById(R.id.title); convertView.setTag(holder); }else{ holder =(ViewHolder)convertView.getTag(); } holder.title.setText(mDatas.get(position)); return convertView; } }原文：http://www.cnblogs.com/Doing-what-I-love/p/5621184.html