Android ListView中 每一项都有不同的布局

先前我写的一篇 每一项都有不同布局的 博客，那种方法并不常用，这里的方法是最常用的方法。

实现代码

Adapter的代码

其中:ViewHolder分别是三个不同的布局,也就是ListView中每一项的布局

TYPE_1...是三种类型.

在使用不同布局的时候,getItemViewType和getViewType不能少,一般是不用这两个函数的重载的

 class RunRankAdapter extends BaseAdapter {
     ArrayList> ls;
     Context mContext;
     LinearLayout linearLayout = null;
     LayoutInflater inflater;
     TextView tex;
     final int VIEW_TYPE = 3;
     final int TYPE_1 = 0;
     final int TYPE_2 = 1;
     final int TYPE_3 = 2;

     public RunRankAdapter(Context context,
             ArrayList> list) {
         ls = list;
         mContext = context;
     }

     @Override
     public int getCount() {
         return ls.size();
     }

     @Override
     public Object getItem(int position) {
         return ls.get(position);
     }

     @Override
     public long getItemId(int position) {
         return 0;
     }

     // 每个convert view都会调用此方法，获得当前所需要的view样式
     @Override
     public int getItemViewType(int position) {
         int p = position;
         if (p == 0)
             return TYPE_1;
         else if (p == 1)
             return TYPE_2;
         else
             return TYPE_3;
     }

     @Override
     public int getViewTypeCount() {
         return 3;
     }

     @Override
     public View getView(int position, View convertView, ViewGroup parent) {
         ViewHolder1 holder1 = null;
         ViewHolder2 holder2 = null;
         ViewHolder3 holder3 = null;
         int type = getItemViewType(position);
         if (convertView == null) {
             inflater = LayoutInflater.from(mContext);
             // 按当前所需的样式，确定new的布局
             switch (type) {
             case TYPE_1:

                 convertView = inflater.inflate(R.layout.item_runrank1,
                         parent, false);
                 holder1 = new ViewHolder1();
                 holder1.rank1 = (TextView) convertView
                         .findViewById(R.id.tv_list1_rank);
                 holder1.time1 = (TextView) convertView
                         .findViewById(R.id.tv_list1_time);
                 convertView.setTag(holder1);
                 break;
             case TYPE_2:
                 convertView = inflater.inflate(R.layout.item_runrank2,
                         parent, false);
                 holder2 = new ViewHolder2();
                 holder2.rank2 = (TextView) convertView
                         .findViewById(R.id.tv_list2_rank);
                 holder2.time2 = (TextView) convertView
                         .findViewById(R.id.tv_list2_time);
                 convertView.setTag(holder2);
                 break;
             case TYPE_3:
                 convertView = inflater.inflate(R.layout.item_runrank3,
                         parent, false);
                 holder3 = new ViewHolder3();
                 holder3.rank3 = (TextView) convertView
                         .findViewById(R.id.tv_list3_rank);
                 holder3.time3 = (TextView) convertView
                         .findViewById(R.id.tv_list3_time);
                 convertView.setTag(holder3);
                 break;
             default:
                 break;
             }

         } else {
             switch (type) {
             case TYPE_1:
                 holder1 = (ViewHolder1) convertView.getTag();
                 break;
             case TYPE_2:
                 holder2 = (ViewHolder2) convertView.getTag();
                 break;
             case TYPE_3:
                 holder3 = (ViewHolder3) convertView.getTag();
                 break;
             }
         }
         // 设置资源
         switch (type) {
         case TYPE_1:
             holder1.rank1.setText("" + (position + 1));
             holder1.time1.setText(ls.get(position).get("time").toString());
             break;
         case TYPE_2:
             holder2.rank2.setText("" + (position + 1));
             holder2.time2.setText(ls.get(position).get("time").toString());
             holder2.totaldistance2.setText(ls.get(position)
             break;
         case TYPE_3:
             holder3.rank3.setText("" + (position + 1));
             holder3.time3.setText(ls.get(position).get("time").toString());
             break;
         }

         return convertView;
     }

     public class ViewHolder1 {
         TextView rank1;
         TextView time1;
     }

     public class ViewHolder2 {
         TextView rank2;
         TextView time2;
     }

     public class ViewHolder3 {
         TextView rank3;
         TextView time3;
     }
 }

使用方式:

声明并定义自己的Adapter,在ListView中设置他的Adapter

 private RunRankAdapter runRankAdapter;
 ArrayList> runRank;
 ListView lv_runRank;
 runRank = new ArrayList>();
 runRankAdapter = new RunRankAdapter(this, runRank);
 lv_runRank = (ListView) findViewById(R.id.lv_runRank);
 lv_runRank.setAdapter(runRankAdapter);

还有一种方法：

在主布局文件中包含一个LinearLayout. 并且设置android:orientation="vertical"
定义两种不同的布局文件，然后代码中,根据不同条件调用.addview向LinearLayout加载就可以了

转自：http://blog.csdn.net/lllkey/article/details/9093107