Listview 设置不同类型的item

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 }