Android 開發(fā) listview QQ多級列表的實現(xiàn)

1、android 開發(fā) listview qq多級列表的實現(xiàn)代碼 主類package com.android.qu.antking.list; import android.app.activity;import android.content.context;import android.os.bundle;import android.view.layoutinflater;import android.view.view;import android.view.viewgroup;import android.widget.baseexpandablelistadapter;import

2、android.widget.expandablelistview;import android.widget.imageview;import android.widget.textview; import java.util.*; public class mymain extends activity /author antkingwei private list> parentlist=new arraylist>(); private list>> childlist = new arraylist>>(); expendadapter adapt

3、er; expandablelistview exlist; private string listname = new string"我的好友","高中學(xué)生","高校學(xué)生","移動開發(fā)","網(wǎng)站建設(shè)","一般伴侶"private string childtitle= new string"丫寧","王八銳","小鳥","連超","董二丫"private string chil

4、dmood= new string"我喜愛王銳","我就是王八","我也喜愛王銳","上邊一群傻帽","同樓上"private int headimage=new intr.drawable.ning,r.drawable.rui,r.drawable.niao,r.drawable.lianchao,r.drawable.xiaoxiao; public void oncreate(bundle savedinstancestate) super.oncreate(savedinstances

5、tate); setcontentview(r.layout.main); exlist = (expandablelistview) this.findviewbyid(r.id.expandablelistview1); parentlist =getparentlist(); childlist = getchildlist(); adapter = new expendadapter(mymain.this, parentlist, childlist); exlist.setadapter(adapter); exlist.setgroupindicator(null); exlis

6、t.setdivider(null); public list> getparentlist() list> list = new arraylist>(); for(int i=0;i map curgroupmap = new hashmap(); list.add(curgroupmap); curgroupmap.put("list", listnamei); return list; public list>> getchildlist() list>> list1 = new arraylist>>(); f

7、or (int i = 0; i list> children = new arraylist>(); for (int j = 0; j map curchildmap = new hashmap(); children.add(curchildmap); curchildmap.put("title", childtitlej); curchildmap.put("mood", childmoodj); curchildmap.put("head", headimagej); list1.add(children);

8、return list1; 復(fù)制代碼代碼 自定義的adapterpackage com.android.qu.antking.list; import android.content.context;import android.view.layoutinflater;import android.view.view;import android.view.viewgroup;import android.widget.baseexpandablelistadapter;import android.widget.imageview;import android.widget.textview

9、;import android.widget.toast; import java.util.*; public class expendadapter extends baseexpandablelistadapter private layoutinflater layoutinflater; private context mcontext; private list> parentlist = new arraylist>(); private list>> childlist = new arraylist>>(); public expendad

10、apter(context mcontext,list> parentlist,list>> childlist) this.mcontext = mcontext; this.parentlist = parentlist; this.childlist = childlist; layoutinflater = layoutinflater.from(mcontext);public object getchild(int groupposition, int childposition) / todo auto-generated method stubreturn c

11、hildlist.get(groupposition).get(childposition).get("title").tostring(); overridepublic long getchildid(int groupposition, int childposition) return childposition; overridepublic view getchildview(int groupposition, int childposition,boolean islastchild, view convertview, viewgroup parent)

12、if(convertview =null)convertview = layoutinflater.inflate(r.layout.childlist, null); final imageview head=(imageview)convertview.findviewbyid(r.id.headimage); head.setimageresource(integer.valueof(childlist.get(groupposition).get(childposition).get("head").tostring(); final textview title=

13、(textview)convertview.findviewbyid(r.id.title); title.settext(childlist.get(groupposition).get(childposition).get("title").tostring(); final textview mood =(textview)convertview.findviewbyid(r.id.mood); mood.settext(childlist.get(groupposition).get(childposition).get("mood").tost

14、ring(); return convertview; overridepublic int getchildrencount(int groupposition) / todo auto-generated method stubreturn childlist.get(groupposition).size(); overridepublic object getgroup(int groupposition) / todo auto-generated method stubreturn parentlist.get(groupposition).get("list"

15、).tostring(); overridepublic int getgroupcount() / todo auto-generated method stubreturn parentlist.size(); overridepublic long getgroupid(int groupposition) / todo auto-generated method stubreturn groupposition; overridepublic view getgroupview(int groupposition, boolean isexpanded,view convertview

16、, viewgroup parent) if(convertview=null)convertview=layoutinflater.inflate(r.layout.parentlist, null); final textview list = (textview) convertview.findviewbyid(r.id.list); list.settext(parentlist.get(groupposition).get("list").tostring(); return convertview; overridepublic boolean hasstab

17、leids() / todo auto-generated method stubtoast.maketext(mcontext,"nihao",toast.length_short).show();return true; overridepublic boolean ischildselectable(int groupposition, int childposition) toast.maketext(mcontext, "這是第"+groupposition+"組，第"+childposition+"個"

18、, toast.length_short).show();return true; 復(fù)制代碼代碼 主布局文件 android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="drawable/back1" > 復(fù)制代碼代碼 parentlist布局 xmlns:android=" android:layout_width=

19、"fill_parent" android:orientation="horizontal" android:id="+id/parentlist" android:layout_height="wrap_content"> android:layout_width="60px" android:layout_height="60px" android:src="drawable/user_group" /> android:id="

20、+id/list" android:textsize="20px" android:layout_width="wrap_content" android:layout_height="wrap_content"/> 復(fù)制代碼代碼 childlist布局 xmlns:android=" android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="+id/childlist" android:orientation="horizontal" > android:paddingleft="20px" android:id="+id/headimage" android:src