Jeff Sharkey Listview

Question

我对Android和Java比较陌生，所以如果这是一个愚蠢的问题请原谅我。我正在使用Jeff Sharkeys SeperatedListAdapter，我想创建一个如下所示的列表，其中 HEAD item_complex.xml，list_item.xml，item_complex.xml另一个 HEADER ...等等，但我无法理解为实现这一目标需要做些什么。很可能是由于我缺乏android和java知识。有人可以帮帮我吗？

如果它有帮助......代码......

package com.biosonik.iceland.news;

import java.util.LinkedHashMap;
import java.util.Map;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Adapter;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import com.biosonik.iceland_planner.R;

public class SeparatedListAdapter extends BaseAdapter {  

    public final Map<String,Adapter> sections = new LinkedHashMap<String,Adapter>();  
    public final ArrayAdapter<String> headers;  
    public final static int TYPE_SECTION_HEADER = 0;  

    public SeparatedListAdapter(Context context) {  
        headers = new ArrayAdapter<String>(context, R.layout.list_header);  
    }  

    public void addSection(String section, Adapter adapter) {  

             this.headers.add(section);

        this.sections.put(section, adapter);  
    }  

    public Object getItem(int position) {  
        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 section;  
            if(position < size) return adapter.getItem(position - 1);  

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

    public int getCount() {  
        // total together all sections, plus one for each section header  
        int total = 0;  
        for(Adapter adapter : this.sections.values())  
            total += adapter.getCount() + 1;  
        return total;  
    }  

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

    @Override
    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;  
    }  

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

    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 headers.getView(sectionnum, convertView, parent);  
            if(position < size) return adapter.getView(position - 1, convertView, parent);  

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


        }  
        return null;  
    }  

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

}  

...活性

@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


        setContentView(R.layout.planner_list);



        List<Map<String,?>> security = new LinkedList<Map<String,?>>();  
    week34.add(createItem("62","Monday 19th Novermber","C1P1 Change-Over Day 1", "text text text text",String.valueOf(R.drawable.lsnow),"9C"));  
    week35.add(createItem("52","Monday 19th Novermber", "C1P1 Change-Over Day 2", "text text text text",String.valueOf(R.drawable.hsnow),"12C"));  



    // create our list and custom adapter  
    SeparatedListAdapter adapter = new SeparatedListAdapter(this);  


    adapter.addSection("Week 34", 
            new SimpleAdapter(DisplayNewsActivity.this, week34, R.layout.list_complex,  
                    new String[] {ITEM_UID, ITEM_DATE, ITEM_HEADLINE, ITEM_GRAB_LINE, ITEM_WEATHER_TEMP, ITEM_WEATHER_ICON }, new int[] {R.id.uid, R.id.date, R.id.headline, R.id.grab_line,R.id.weather_icon,R.id.weather_temp }));  
    adapter.addSection("UNWANTED HEADER", new ArrayAdapter<String>(this,  
        R.layout.list_item, new String[] { "SIMPLE LIST ENTRY" })); 

    adapter.addSection("Week 35", 
            new SimpleAdapter(DisplayNewsActivity.this, week35, R.layout.list_complex,  
                    new String[] {ITEM_UID, ITEM_DATE, ITEM_HEADLINE, ITEM_GRAB_LINE, ITEM_WEATHER_TEMP, ITEM_WEATHER_ICON }, new int[] {R.id.uid, R.id.date, R.id.headline, R.id.grab_line,R.id.weather_icon,R.id.weather_temp }));  


    list=(ListView)findViewById(R.id.list); 
    list.setAdapter(adapter);  

Answer 1

在getViewTypeCount()中，为什么假设标头计为一个？在我看到这种方法的方式中，每个部分都会有两种不同的视图，所以例如，对于2个部分，你将有4种类型的视图而不是3种，因为它是由这段代码（为我的英语道歉）