ArrayAdapter的简单使用

1、创建一个类继承ArrayAdapter

private class MyAdapter extends ArrayAdapter {
        LayoutInflater in;
        Context context;
        int resource;
        List<Student> students;

        public MyAdapter(Context context, int resource, List<Student> students) {
            super(context, resource, students);
            this.context = context;
            this.resource = resource;
            this.students = students;
        }

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

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {

            in = LayoutInflater.from(context);
            if (convertView == null) {
                Log.d("MyAdapter", "创建新的convertView" + position);
                convertView = in.inflate(resource, null);
            } else {
                Log.d("MyAdapter", "复用原来的convertView" + position);
            }

            TextView name = (TextView) convertView.findViewById(R.id.name);
            TextView sex = (TextView) convertView.findViewById(R.id.sex);
            TextView Student_id = (TextView) convertView.findViewById(R.id.Student_id);
            TextView Myclass = (TextView) convertView.findViewById(R.id.Myclass);

            Student student = students.get(position);

            name.setText(student.name);
            sex.setText(student.sex);
            Student_id.setText(student.Student_id + "");
            Myclass.setText(student.aClass.name);
            return convertView;
        }

    }

2、在Activity中

                List<Student> students=.........
                ListView listView = (ListView) findViewById(R.id.listView);
                listView.setAdapter(new MyAdapter(MainActivity.this, R.layout.list_item, students));
                listView.setOnItemClickListener(new OnItemClickListener() {

                    @Override
                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                        Toast.makeText(getApplicationContext(), position + "", 0).show();

                    }
                });