我试图用阵列适配器显示一个列表视图。我从数据库中获取的数组。

Am trying to display a listview using array adapter. I get the array from the database.

ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
   android.R.layout.simple_list_item_1, ArrayofName);
ListView myListView = (ListView) ll.findViewById(R.id.list1);
myListView.setAdapter(adapter);

现在我想用头对其进行分类。我尝试添加另一个阵列适配器。但它不工作的头。

Now i want to categorize them using the headers. I tried to add another array adapter. But it doesnt work for the headers.

ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
                android.R.layout.simple_list_item_1, ArrayofName);
ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(getActivity(),
                android.R.layout.simple_list_item_1, ArrayofName);
ListView myListView = (ListView) ll.findViewById(R.id.list1);
myListView.addHeaderView(adapter1);
myListView.setAdapter(adapter);

我怎样才能得到这个工作？

How can i get this to work?

PS：我使用的是片段。

PS : I am using a fragment.

推荐答案

排序要与在项目之间的报头（SectionItem）显示它们在你的顺序适配器的项目。

Sort the items in your adapter in the order you want to display them with the headers (SectionItem) in between the items.

创建了一个Person类和SectionItem类。

Create a Person class and a SectionItem class.

每个名字的第一个字母人员和部分适配器的例子：

Example of an adapter with persons and sections per first letter of the name:

- A (SectionItem)
- Adam (Person)
- Alex (Person)
- Andre (Person)
- B (SectionItem)
- Ben (Person)
- Boris (Person)
...

在adapter.getViewTypeCount回报2。 在adapter.getItemViewType（位置）返回0 SectionItems和1人。 在getView（...）返回一个SectionItem或个人视图。

In the adapter.getViewTypeCount return 2. In the adapter.getItemViewType(position) return 0 for SectionItems and 1 for Persons. In the getView(...) return a view for a SectionItem or a Person.

例如：

public class SectionedAdapter extends BaseAdapter {

    ....

    @Override
    public int getViewTypeCount() {
        return 2; // The number of distinct view types the getView() will return.
    }

    @Override
    public int getItemViewType(int position) {
        if (getItem(position) instanceof SectionItem){
            return 0;   
        }else{
            return 1;
        }
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        Object item = getItem(position);
        if (item instanceof SectionItem) {
            if (convertView == null) {
                convertView = getInflater().inflate(R.layout.section, null);
            }
            // Set the section details.
        } else if (item instanceof Person) {
            if (convertView == null) {
                convertView = getInflater().inflate(R.layout.person, null);
            }
            // Set the person details.
        }
        return convertView;
    }
}