ListView_split 分割

  

/**
 * 主界面
 *
 * @author lilin
 * @date 2011-12-12 下午11:13:20
 * @ClassName: MainView
 */
public class MainView extends Activity {
    // 主界面的ListView
    private ListView mainListView;
    // 浏览部分的Adapter
    private ItemListViewAdp mytoolAdp;
    // 收藏部分的Adapter
    private ItemListViewAdp libraryAdp;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 隐藏标题栏
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.mainview);
        initView();
    }

    // 初始化
    private void initView() {
        mainListView = (ListView) findViewById(R.id.HomeListView);
    }

    // 用可点击的项填充主界面上的ListView
    private void fillMainListView() {
        mytoolAdp = new ItemListViewAdp(this);
        libraryAdp = new ItemListViewAdp(this);

        // 声明MainListView的适配器
        SplitListViewAdp mainListViewAdp = new SplitListViewAdp(this);

        mainListViewAdp.addItems("我的收藏", libraryAdp);
        mainListViewAdp.addItems("常用工具", mytoolAdp);
        mainListView.setAdapter(mainListViewAdp);
        // 初始化每一部分的内容
        initItemContent(libraryAdp, mytoolAdp);

        // MainListView的单击事件
        mainListView.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> adapterView, View view,
                    int index, long time) {
                IListViewItemClickListener listener = ((ItemsModel) adapterView
                        .getAdapter().getItem(index)).getItemClickListener();
                if (listener != null) {
                    listener.itemClick();
                }
            }
        });
    }

    public void initItemContent(ItemListViewAdp item1, ItemListViewAdp item2) {

        /*-----------------------我的工具部分-----------------------------------*/
        ArrayList<ItemsModel> mytoolList = new ArrayList<ItemsModel>();
        // 搜索项：
        // 实现点击该项的事件接口
        IListViewItemClickListener mainListViewClickListener = new IListViewItemClickListener() {
            public void itemClick() {
                ShowMsg.showToast(MainView.this, "点击了搜索");
            }
        };
        // 初始化MainItemModel：需要实现点击接口
        ItemsModel mainItemModel = new ItemsModel(R.drawable.list_search,
                "搜索", mainListViewClickListener);
        mytoolList.add(mainItemModel);

        // 下载项:
        // 只用内存卡存在是才显示下载项
        if (SDCard.hasSDcard()) {
            mytoolList.add(new ItemsModel(R.drawable.list_download, "下载",
                    new IListViewItemClickListener() {
                        public void itemClick() {
                            ShowMsg.showToast(MainView.this, "点击了下载");
                        }
                    }));
        }

        /*-----------------------我的收藏部分------------------------------------*/
        ArrayList<ItemsModel> libraryList = new ArrayList<ItemsModel>();
        libraryList.add(new ItemsModel(R.drawable.list_playlist, "歌曲列表",
                new IListViewItemClickListener() {
                    public void itemClick() {
                        // PlaylistView.launch(MainView.this, Mode.Normal);
                        ShowMsg.showToast(MainView.this, "歌曲列表");
                    }
                }));
        // 热门歌曲项：
        libraryList.add(new ItemsModel(R.drawable.list_top, "热门歌曲",
                new IListViewItemClickListener() {
                    public void itemClick() {
                        ShowMsg.showToast(MainView.this, "点击了热门歌曲");
                    }
                }));
        // 电台项：
        libraryList.add(new ItemsModel(R.drawable.list_radio, "电台",
                new IListViewItemClickListener() {
                    public void itemClick() {
                        ShowMsg.showToast(MainView.this, "点击了电台");
                    }
                }));

        // 获得配置参数：用户名
        final String userName = PreferenceManager.getDefaultSharedPreferences(
                this).getString("user_name", null);
        // 如果用户名不空，添加相册项
        if (userName != null && userName.length() > 0) {
            libraryList.add(new ItemsModel(R.drawable.list_cd, "相册",
                    new IListViewItemClickListener() {
                        public void itemClick() {
                            ShowMsg.showToast(MainView.this, "相册");
                        }
                    }));
        }
        // 设置收藏部分的内容
        item1.setList(libraryList);
        // 设置我的工具的内容
        item2.setList(mytoolList);
    }

    protected void onResume() {
        fillMainListView();
        super.onResume();
    }
}

 适配器：

主适配器：

/**
 * MainListView的适配器
 *
 * @author lilin
 * @date 2011-12-24 下午08:05:22
 * @ClassName: SplitListViewAdp
 */
public class SplitListViewAdp extends BaseAdapter {
    // 每一部分
    public final Map<String, Adapter> sections = new LinkedHashMap<String, Adapter>();
    // 每一部分的标题
    public final ArrayAdapter<String> sectiontitle;
    public final static int TYPE_SECTION_HEADER = 0;

    // 构造函数
    public SplitListViewAdp(Context context) {
        sectiontitle = new ArrayAdapter<String>(context,
                R.layout.mainlistview_title);
    }

    // 添加项目
    public void addItems(String itemname, Adapter adapter) {
        this.sectiontitle.add(itemname);
        this.sections.put(itemname, adapter);
    }

    public Object getItem(int position) {
        for (Object section : this.sections.keySet()) {
            Adapter adapter = sections.get(section);
            int size = adapter.getCount() + 1;

            // 检查position是否在当前的section
            if (position == 0)
                return section;
            if (position < size)
                return adapter.getItem(position - 1);

            // 否则跳到下一section
            position -= size;
        }
        return null;
    }

    // 获得部分的数量
    public int getCount() {
        int total = 0;
        for (Adapter adapter : this.sections.values())
            total += adapter.getCount() + 1;
        return total;
    }

    public int getViewTypeCount() {
        // assume that sectiontitle count as one, then total all sections
        int total = 1;
        for (Adapter adapter : this.sections.values())
            total += adapter.getViewTypeCount();
        return total;
    }

    public int getItemViewType(int position) {
        int type = 1;
        for (Object section : this.sections.keySet()) {
            Adapter adapter = sections.get(section);
            int size = adapter.getCount() + 1;

            // check if position inside this section
            if (position == 0)
                return TYPE_SECTION_HEADER;
            if (position < size)
                return type + adapter.getItemViewType(position - 1);

            // otherwise jump into next section
            position -= size;
            type += adapter.getViewTypeCount();
        }
        return -1;
    }

    public boolean areAllItemsSelectable() {
        return false;
    }

    public boolean isEnabled(int position) {
        return (getItemViewType(position) != TYPE_SECTION_HEADER);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        int sectionnum = 0;
        for (Object section : this.sections.keySet()) {
            Adapter adapter = sections.get(section);
            int size = adapter.getCount() + 1;

            // check if position inside this section
            if (position == 0)
                return sectiontitle.getView(sectionnum, convertView, parent);
            if (position < size)
                return adapter.getView(position - 1, convertView, parent);

            // otherwise jump into next section
            position -= size;
            sectionnum++;
        }
        return null;
    }

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

}

 

部分适配器：继承了基础适配器

/**
 * MainListView的每一项的适配器
 *
 * @author lilin
 * @date 2011-12-24 下午08:48:43
 * @ClassName: SectionListViewAdp
 */
public class ItemListViewAdp
// 继承了BaseListViewAdp
        extends BaseListViewAdp<ItemsModel> {

    public ItemListViewAdp(Activity context) {
        super(context);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            LayoutInflater inflater = mActivity.getLayoutInflater();
            convertView = inflater.inflate(R.layout.mainlistview_item, null);

            holder = new ViewHolder();
            holder.myimageview = (ImageView) convertView
                    .findViewById(R.id.item_myimageview);
            holder.item_content = (TextView) convertView
                    .findViewById(R.id.item_content);

            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        // 设置item_content
        if (mArrayList.get(position).getContent() != null) {
            // 设置Text
            holder.item_content.setText(mArrayList.get(position).getContent());
        }

        // 设置myimageview
        if (mArrayList.get(position).getImgID() != null) {
            // 有：就设置图片
            holder.myimageview.setImageResource(mArrayList.get(position).getImgID());
        } else {
            // 没有：就设置不可见
            holder.myimageview.setVisibility(View.GONE);
        }

        return convertView;
    }

    static class ViewHolder {
        ImageView myimageview;
        TextView item_content;
    }

}

 

基础适配器：

package com.lilin.splitlistview.adapter;

import java.util.ArrayList;

import android.app.Activity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;

public abstract class BaseListViewAdp<T> extends BaseAdapter {

    protected ArrayList<T> mArrayList;
    protected Activity mActivity;
    protected ListView mListView;

    // 构造方法
    public BaseListViewAdp(Activity mActivity) {
        this.mActivity = mActivity;
    }

    @Override
    public int getCount() {
        if (mArrayList != null)
            return mArrayList.size();
        else
            return 0;
    }

    @Override
    public Object getItem(int position) {
        return mArrayList == null ? null : mArrayList.get(position);
    }

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

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

    public void setList(ArrayList<T> list) {
        this.mArrayList = list;
        notifyDataSetChanged();
    }

    public ArrayList<T> getList() {
        return mArrayList;
    }

    public void setList(T[] list) {
        ArrayList<T> arrayList = new ArrayList<T>(list.length);
        for (T t : list) {
            arrayList.add(t);
        }
        setList(arrayList);
    }

    public ListView getListView() {
        return mListView;
    }

    public void setListView(ListView listView) {
        mListView = listView;
    }

}

 接口和Modal

package com.lilin.splitlistview.Interface;

/**
 * ListView每一项单击事件的接口
 *
 * @author lilin
 * @date 2011-12-24 下午08:51:08
 * @ClassName: IMainListViewClickListener
 */
public interface IListViewItemClickListener {
    public void itemClick();
}

 

package com.lilin.splitlistview.modal;

import com.lilin.splitlistview.Interface.IListViewItemClickListener;

/**
 * 封装了主界面上ListView每一项的数据
 *
 * @author lilin
 * @date 2011-12-24 下午06:49:33
 * @ClassName: MainModel
 */
public class ItemsModel {
    // 图片
    private Integer imgID;
    // 内容
    private String content;
    // ID
    private String itemID;
    // 单击事件接口
    private IListViewItemClickListener itemClickListener;

    // 构造方法
    public ItemsModel(Integer imgID, String content,
            IListViewItemClickListener iMainItemClickListener) {
        this.imgID = imgID;
        this.content = content;
        itemClickListener = iMainItemClickListener;
    }

    public Integer getImgID() {
        return imgID;
    }

    public void setImgID(Integer imgID) {
        this.imgID = imgID;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public String getItemID() {
        return itemID;
    }

    public void setItemID(String itemID) {
        this.itemID = itemID;
    }

    public IListViewItemClickListener getItemClickListener() {
        return itemClickListener;
    }

    public void setItemClickListener(
            IListViewItemClickListener itemClickListener) {
        this.itemClickListener = itemClickListener;
    }

}