ArrayAdapter的简单使用

1、创建一个类继承ArrayAdapter

 1 private class MyAdapter extends ArrayAdapter {
 2         LayoutInflater in;
 3         Context context;
 4         int resource;
 5         List<Student> students;
 6 
 7         public MyAdapter(Context context, int resource, List<Student> students) {
 8             super(context, resource, students);
 9             this.context = context;
10             this.resource = resource;
11             this.students = students;
12         }
13 
14         @Override
15         public int getCount() {
16             return students.size();
17         }
18 
19         @Override
20         public View getView(int position, View convertView, ViewGroup parent) {
21 
22             in = LayoutInflater.from(context);
23             if (convertView == null) {
24                 Log.d("MyAdapter", "创建新的convertView" + position);
25                 convertView = in.inflate(resource, null);
26             } else {
27                 Log.d("MyAdapter", "复用原来的convertView" + position);
28             }
29 
30             TextView name = (TextView) convertView.findViewById(R.id.name);
31             TextView sex = (TextView) convertView.findViewById(R.id.sex);
32             TextView Student_id = (TextView) convertView.findViewById(R.id.Student_id);
33             TextView Myclass = (TextView) convertView.findViewById(R.id.Myclass);
34 
35             Student student = students.get(position);
36 
37             name.setText(student.name);
38             sex.setText(student.sex);
39             Student_id.setText(student.Student_id + "");
40             Myclass.setText(student.aClass.name);
41             return convertView;
42         }
43 
44     }

2、在Activity中

 1                 List<Student> students=.........
 2                 ListView listView = (ListView) findViewById(R.id.listView);
 3                 listView.setAdapter(new MyAdapter(MainActivity.this, R.layout.list_item, students));
 4                 listView.setOnItemClickListener(new OnItemClickListener() {
 5 
 6                     @Override
 7                     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
 8                         Toast.makeText(getApplicationContext(), position + "", 0).show();
 9 
10                     }
11                 });