android - 导航抽屉列表视图中的部分标题

Question

我想实现类似于海盗湾使用的部分标题

基本上是这样的Listview：

标题 名称列表 项目列表 项目列表 项目列表 项目标题 名称列表 项目列表 项目列表 项目

实现这一目标的最佳方法是什么？我已经阅读了节标题和合并适配器，但它们不能满足我的需要......我将如何实现节标题

Answer 1

这是我解决它的方法：

我教我的自定义 ListAdapter 返回标题行和详细信息行，这涉及覆盖 ListAdapter 中的 getViewTypeCount() 和 getItemViewType() 方法，而且我得到了 getView() 以了解行类型之间的区别。下面的代码应该给你一个提示.. ListViewAdapter 的代码（注释大部分）

public class ListViewAdapter extends ArrayAdapter<ListViewItemModel> {

public ListViewAdapter(Context context) {
    super(context, 0);
}

public void addHeader(int title) { //expects The Title for the header as an Arugment to it
    add(new ListViewItemModel(title, -1, true));//add the object to the Bottom of the array
}

public void addItem(int title, int icon) {
    add(new ListViewItemModel(title, icon, false));
}

public void addItem(ListViewItemModel itemModel) {
    add(itemModel);
}

@Override
public int getViewTypeCount() {  //Returns the number of types of Views that will be created by getView(int, View, ViewGroup).
    return 2; //we will create 2 types of views
}

@Override
public int getItemViewType(int position) { //framework calls getItemViewType for row n, the row it is about to display.
    //Get the type of View that will be created by getView(int, View, ViewGroup) for the specified item.
    return getItem(position).isHeader ? 0 : 1; // get position passes (n) and accertain  is its a header  or not
}

@Override
public boolean isEnabled(int position) {
    return !getItem(position).isHeader;
}

public static class ViewHolder {
    public final TextView textHolder;
    public final ImageView imageHolder;

    public ViewHolder(TextView text1, ImageView image1) {
        this.textHolder = text1;
        this.imageHolder = image1;
    }
}

public View getView(int position, View convertView, ViewGroup parent) {
  //Abstract View --> Get a View that displays the data at the specified position in the data set.
    ListViewItemModel item = getItem(position);
    ViewHolder holder = null;
    View view = convertView;

    if (view == null) {
        int layout = R.layout.list_view_row;
        if (item.isHeader)
            layout = R.layout.list_view_row_header;

        view = LayoutInflater.from(getContext()).inflate(layout, null);

        TextView text1 = (TextView) view.findViewById(R.id.menurow_title);
        ImageView image1 = (ImageView) view.findViewById(R.id.menurow_icon);
        view.setTag(new ViewHolder(text1, image1));
    }

    if (holder == null && view != null) {
        Object tag = view.getTag();
        if (tag instanceof ViewHolder) {
            holder = (ViewHolder) tag;
        }
    }

    if (item != null && holder != null) {
        if (holder.textHolder != null)
            holder.textHolder.setText(item.title);

        if (holder.imageHolder != null) {
            if (item.iconRes > 0) {

                holder.imageHolder.setVisibility(View.VISIBLE);
                holder.imageHolder.setImageResource(item.iconRes);
            } else {
                holder.imageHolder.setVisibility(View.GONE);
            }
        }
    }

    return view;
}

}

以及供 ArrayAdapter 使用的模型

 public class ListViewItemModel {

public int title;
public int iconRes;
public boolean isHeader;

public ListViewItemModel(int title, int iconRes, boolean header) {
    this.title = title;
    this.iconRes = iconRes;
    this.isHeader = header;
}

public ListViewItemModel(int title, int iconRes) {
    this(title, iconRes, false);
}

}

现在在我将在导航中使用此自定义列表视图的课程中

ListViewAdapter mAdapter = new ListViewAdapter(this);// Add First Header        
mAdapter.addHeader(R.string.menu_data);
menu_One = getResources().getStringArray(R.array.menu_one); // Load list view data     array strings
    String[] menuOneIcons =   getResources().getStringArray(R.array.menu_two_one);// Load list view image array strings


    int oneIcons = 0;
    for (String item : menuItemsData) { //enhanced For loop, iterate on elements from the collection named menuItemsData

        int id_menu_one = getResources().getIdentifier(item, "string",this.getPackageName());

        int id_menu_one_icons = getResources().getIdentifier(menuOneIcons[oneIcons], "drawable",this.getPackageName());



        ListViewItemModel mItem = new ListViewItemModel(id_data_title,id_data_icon);

        mAdapter.addItem(mItem);
        oneIcons++;
    }
    // Add second header

    mAdapter.addHeader(R.string.menu_two); //second Header here

    menu_Two = getResources().getStringArray(R.array.menu_two);
    String[] menuTwoIcons = getResources().getStringArray(R.array._menu_two_icons);


    int twoIcons = 0;
    for (String item : menu_Two) {

        int id_menu_two = getResources().getIdentifier(item, "string",this.getPackageName());

        int id_menu_two_icons = getResources().getIdentifier(enuTwoIcons[twoIcons], "drawable",this.getPackageName());


        // creating drawer menu model
        ListViewItemModel mItem = new ListViewItemModel(id_menu_two,id_menu_two_icons);

        mAdapter.addItem(mItem);
        twoIcons++;
    }

Answer 2

只需使用每个标题一组的 ExpandableListView。