ListView多条目加载

1. /** 
2.  * listview多条目加载,使用项目使用imageloader,butterknife; 
3.  */  
4. public class MainActivity extends AppCompatActivity {  
5.     @BindView(R.id.lv)  
6.     ListView lv;  
7.   
8.     private ArrayList<Goods> goodsList;  
9.     String imgUrl = "http://image.tianjimedia.com/uploadImages/2012/067/N80N0GUA36N0.jpg";  
10.     private ImageView img;  
11.   
12.     @Override  
13.     protected void onCreate(Bundle savedInstanceState) {  
14.         super.onCreate(savedInstanceState);  
15.         setContentView(R.layout.activity_main);  
16.         //使用butterKnife来注解控件;  
17.         ButterKnife.bind(this);  
18.         initData();  
19.   
20.     }  
21.   
22.     private void initData() {  
23.         goodsList = new ArrayList<Goods>();  
24.         goodsList.add(new Goods("商品1", "21", 0));  
25.         goodsList.add(new Goods("商品3", "23", 0));  
26.         goodsList.add(new Goods("商品4", "24", R.drawable.hu, 1));  
27.         goodsList.add(new Goods("商品2", "22", R.drawable.hu, 1));  
28.         goodsList.add(new Goods("商品5", "25", 0));  
29.         goodsList.add(new Goods("商品6", "26", R.drawable.hu, 1));  
30.         goodsList.add(new Goods("商品21", "21", 0));  
31.         goodsList.add(new Goods("商品5", "25", 0));  
32.         goodsList.add(new Goods("商品22", "22", R.drawable.hu, 1));  
33.         goodsList.add(new Goods("商品23", "23", 0));  
34.         goodsList.add(new Goods("商品24", "24", R.drawable.hu, 1));  
35.         goodsList.add(new Goods("商品25", "25", 0));  
36.         goodsList.add(new Goods("商品26", "26", R.drawable.hu, 1));  
37.         goodsList.add(new Goods("商品31", "21", 0));  
38.         goodsList.add(new Goods("商品32", "22", R.drawable.hu, 1));  
39.         goodsList.add(new Goods("商品34", "24", R.drawable.hu, 1));  
40.         goodsList.add(new Goods("商品36", "26", R.drawable.hu, 1));  
41.         goodsList.add(new Goods("商品33", "23", 0));  
42.         goodsList.add(new Goods("商品35", "25", 0));  
43.   
44.         //把数据配置给listview  
45.         lv.setAdapter(new MBaseAdapter());  
46.     }  
47.   
48.     class MBaseAdapter extends BaseAdapter {  
49.   
50.         private final int type1 = 0;  
51.         private final int type2 = 1;  
52.   
53.         @Override  
54.         public int getCount() {  
55.             return goodsList.size();  
56.         }  
57.   
58.         @Override  
59.         public Object getItem(int i) {  
60.             return goodsList.get(i);  
61.         }  
62.   
63.         @Override  
64.         public long getItemId(int i) {  
65.             return i;  
66.         }  
67.   
68.         @Override  
69.         public View getView(int i, View convertView, ViewGroup viewGroup) {  
70.             int typeId = goodsList.get(i).getTypeId();  
71.             switch (typeId) {  
72.                 case type1:  
73.                     Holder1 holder1 = null;  
74.                     if (convertView == null) {  
75.                         holder1 = new Holder1();  
76.                         convertView = View.inflate(MainActivity.this, R.layout.lv_item_1, null);  
77.                         holder1.textView1 = convertView.findViewById(R.id.textView1);  
78.                         holder1.textView2 = convertView.findViewById(R.id.textView2);  
79.                         convertView.setTag(holder1);  
80.                     } else {  
81.                         holder1 = (Holder1) convertView.getTag();  
82.                     }  
83.                     holder1.textView1.setText(goodsList.get(i).getName());  
84.                     holder1.textView2.setText(goodsList.get(i).getPrice());  
85.                     break;  
86.                 case type2:  
87.                     Holder2 holder2 = null;  
88.                     if (convertView == null) {  
89.                         holder2 = new Holder2();  
90.                         convertView = View.inflate(MainActivity.this, R.layout.lv_item_2, null);  
91.                         holder2.textView1 = convertView.findViewById(R.id.textView1);  
92.                         holder2.textView2 = convertView.findViewById(R.id.textView2);  
93.                         holder2.imageView1 = convertView.findViewById(R.id.imageView1);  
94.                         convertView.setTag(holder2);  
95.                     } else {  
96.                         holder2 = (Holder2) convertView.getTag();  
97.                     }  
98.                     holder2.textView1.setText(goodsList.get(i).getName());  
99.                     holder2.textView2.setText(goodsList.get(i).getPrice());  
100.   
101. //                            holder2.imageView1.setImageResource(R.drawable.hu);  
102.                     ImageLoader.getInstance().displayImage(imgUrl, holder2.imageView1);  
103.                     break;  
104.   
105.             }  
106.             return convertView;  
107.         }  
108.   
109.         //返回条目有多少种类型  
110.         @Override  
111.         public int getViewTypeCount() {  
112.             return 2;  
113.         }  
114.   
115.         //返回条目的类型  
116.         @Override  
117.         public int getItemViewType(int position) {  
118.             return goodsList.get(position).getTypeId();  
119.         }  
120.     }  
121.   
122.   
123.     class Holder1 {  
124.         TextView textView1, textView2;  
125.     }  
126.   
127.     class Holder2 {  
128.         TextView textView1, textView2;  
129.         ImageView imageView1;  
130.     }  
131.   
132. }