自定义适配器

public abstract class ItemAdapter<T> extends BaseAdapter {

继承BaseAdapter并重载4个方法且定义两个成员变量
    protected Context context;
    protected List<T> list;

    public ItemAdapter(Context context) {
        this.context = context;
    }

    @Override
    public int getCount() {
        return null == list ? 0 : list.size();
    }

    @Override
    public T getItem(int position) {
        return list.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

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

    public List<T> getList() {
        return list;
    }

    public void setList(List<T> list) {
        this.list = list;

注意要刷新
        notifyDataSetChanged();}

其他适配器需要继承此适配器