Listview 设置不同类型的item

要想设置不同的item需要在adapter里面重写两个方法

getItemViewType() 需要注意这个个类型是0开始

getViewTypeCount();

  1 package com.example.listview_01;
  2
  3 import java.util.List;
  4
  5 import android.content.Context;
  6 import android.view.LayoutInflater;
  7 import android.view.View;
  8 import android.view.ViewGroup;
  9 import android.widget.BaseAdapter;
 10 import android.widget.TextView;
 11
 12 public class MyAdapter extends BaseAdapter {
 13
 14     private Context context;
 15     private List<ViewItem> list;
 16     private LayoutInflater inflater;
 17
 18     public MyAdapter(Context context, List<ViewItem> list) {
 19         this.context = context;
 20         this.list = list;
 21         inflater = LayoutInflater.from(context);
 22     }
 23
 24     @Override
 25     public int getCount() {
 26         return list.size();
 27     }
 28
 29     @Override
 30     public Object getItem(int position) {
 31         return list.get(position);
 32     }
 33
 34     @Override
 35     public long getItemId(int position) {
 36         return position;
 37     }
 38
 39     @Override
 40     public int getItemViewType(int position) {
 41         return list.get(position).getType();
 42     }
 43
 44     @Override
 45     public int getViewTypeCount() {
 46         return 2;
 47     }
 48
 49     @Override
 50     public View getView(int position, View convertView, ViewGroup parent) {
 51         HolderType1 holderType1 = null;
 52         HolderType2 holderType2 = null;
 53         int type = getItemViewType(position);
 54         if (convertView == null) {
 55             // 根据不同的type设置不同的布局
 56             switch (type) {
 57             case 0:
 58                 convertView = inflater.inflate(R.layout.activity_item, null);
 59                 holderType1 = new HolderType1(convertView);
 60                 convertView.setTag(holderType1);
 61                 break;
 62
 63             case 1:
 64                 convertView = inflater.inflate(R.layout.activity_item2, null);
 65                 holderType2 = new HolderType2(convertView);
 66                 convertView.setTag(holderType2);
 67                 break;
 68             }
 69         } else {
 70             // 根据不同的布局设置不同的holder
 71             switch (type) {
 72             case 0:
 73                 holderType1 = (HolderType1) convertView.getTag();
 74                 break;
 75             case 1:
 76                 holderType2 = (HolderType2) convertView.getTag();
 77                 break;
 78             }
 79         }
 80
 81         ViewItem item = list.get(position);
 82         // 根据不同的布局给控件填充数据
 83         switch (type) {
 84         case 0:
 85             holderType1.addressTxt.setText(item.getAddress());
 86             holderType1.nameTxt.setText(item.getName());
 87             holderType1.ageTxt.setText(item.getAge());
 88             break;
 89         case 1:
 90             holderType2.titleTxt.setText(item.getTitle());
 91             break;
 92         }
 93         return convertView;
 94     }
 95
 96     private class HolderType1 {
 97         public TextView nameTxt;
 98         public TextView ageTxt;
 99         public TextView addressTxt;
100
101         public HolderType1(View convertView) {
102             nameTxt = (TextView) convertView.findViewById(R.id.name);
103             ageTxt = (TextView) convertView.findViewById(R.id.age);
104             addressTxt = (TextView) convertView.findViewById(R.id.address);
105         }
106     }
107
108     private class HolderType2 {
109         public TextView titleTxt;
110
111         public HolderType2(View convertView) {
112             titleTxt = (TextView) convertView.findViewById(R.id.title);
113         }
114     }
115
116 }