Android's Expandablelistview

Activity_main.xml

<relativelayout xmlns:android= "Http://schemas.android.com/apk/res/android"      xmlns:tools= "Http://schemas.android.com/tools"     android:layout_width= "Match_parent"     android:layout_height= "Match_parent"     android:paddingbottom= "@ Dimen/activity_vertical_margin "    android:paddingleft=" @dimen/activity_horizontal_margin "     android:paddingright= "@dimen/activity_horizontal_margin"      android:paddingtop= "@dimen/activity_vertical_margin"     tools:context= " Com.example.expandablelistview.MainActivity " >    <ExpandableListView          android:id= "@+id/expandablelistview1_1"          android:layout_width= "Match_parent"          android:layout_height= "Wrap_content"   &nbsP;    android:layout_alignparentleft= "true"         Android:layout_alignparenttop= "true"        android:groupindicator= "@null"                          >             </ExpandableListView></RelativeLayout><!--  android:groupindicator= "@null" Get rid of your own arrow icons  -->

Group_item.xml

<?xml version= "1.0"  encoding= "Utf-8"? ><linearlayout xmlns:android= "http// Schemas.android.com/apk/res/android "    android:layout_width=" Match_parent "     android:layout_height= "wrap_content"     android:orientation= "Horizontal"   >        <ImageView         android:id= "@+id/imageviewgroup_1"          android:layout_ Width= "Wrap_content"         android:layout_height= "Wrap_content"          android:src= "@drawable/ic_launcher"          />    <textview     android:id= "@+id/ Textviewgroup_1 "    android:layout_width=" Wrap_content "    android: layout_height= "Wrap_content"       /></linearlayout> 

Child_item.xml

<?xml version= "1.0"  encoding= "Utf-8"? ><linearlayout xmlns:android= "http// Schemas.android.com/apk/res/android "    android:layout_width=" Match_parent "     android:layout_height= "wrap_content"     android:orientation= "Horizontal"   >             <ImageView         android:id= "@+id/imageviewchild_1"           android:layout_width= "Wrap_content"         android: layout_height= "Wrap_content"         android:src= "@drawable/ic_launcher "        android:padding=" 10DP "         />    <textview     android:id= "@+id/ Textviewchild_1 "    androiD:layout_width= "Wrap_content"     android:layout_height= "Wrap_content"      android:text= "Sdfds"     android:padding= "10DP"   /></LinearLayout>

Mainactivity

package com.example.expandablelistview;import android.app.activity;import android.os.bundle; import android.view.menu;import android.view.menuitem;import android.view.view;import  android.view.viewgroup;import android.widget.baseexpandablelistadapter;import  android.widget.expandablelistview;import android.widget.imageview;import android.widget.textview; public class mainactivity extends activity {private expandablelistview  Expandablelistview, @Overrideprotected  void oncreate (bundle savedinstancestate)  { Super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); expandablelistview= ( Expandablelistview)  findviewbyid (r.id.expandablelistview1_1); Expandablelistview.setadapter (new  Myexpandablelistadapter ());} @Overridepublic  boolean oncreateoptionsmenu (Menu menu)  {// inflate the menu ;  this adds items to the action bar if it is present.getmenuinflater (). Inflate (R.menu.main, menu); Return true;} @Overridepublic  boolean onoptionsitemselected (Menuitem item)  {// handle action  bar item clicks here. The action bar will// automatically  handle clicks on the home/up button, so long// as you  specify a parent activity in androidmanifest.xml.int id =  Item.getitemid ();if  (id == r.id.action_settings)  {return true;} return super.onoptionsitemselected (item);} class myexpandablelistadapter extends baseexpandablelistadapter{private string[]  skills = new string[]{             " WORD ", " EXCEL ", " EMAIL ", " PPT "    };p Rivate string[][] groups = new string[][]{            {" Document editing ", " Document Layout ", " Document Processing ", " Document Printing "},             {"Table edit",  "table layout",  "Table Processing",  "Table printing"},             {"Send and receive mail",  "Manage Mailbox",  "Login Logout",  "register binding"},             {"Demo Edit",  "presentation Layout",  "demo Process",  "Demo print"},    }; @Overridepublic  int getgroupcount ()  {// TODO Auto-generated method  Stubreturn skills.length;} Number of Level two lists @overridepublic int getchildrencount (int groupposition)  {// TODO  Auto-generated method stubreturn groups[groupposition].length;} Returns the object for each group @overridepublic object getgroup (int groupposition)  {// TODO  auto-generated method stubreturn&Nbsp;skills[groupposition];} Returns the list items in each group @overridepublic object getchild (int groupposition, int childposition)  {// todo auto-generated method stubreturn groups[groupposition][childposition];} @Overridepublic  long getgroupid (int groupposition)  {// TODO Auto-generated  Method stubreturn groupposition;} @Overridepublic  long getchildid (int groupposition, int childposition)  {//  Todo auto-generated method stubreturn childposition;} @Overridepublic  boolean hasstableids ()  {// TODO Auto-generated method  Stubreturn true;} @Overridepublic  view getgroupview (int groupposition, boolean isexpanded,view  Convertview, viewgroup parent)  {// todo auto-generated method stubif ( Convertview==null) {convertview=getlayoutinflater (). Inflate (R.layout.group_item,&nbsP;null);} imageview imageview= (ImageView)  convertview.findviewbyid (r.id.imageviewgroup_1); textview textview= (TextView)  convertview.findviewbyid (r.id.textviewgroup_1); Imageview.setimageresource (R.drawable.ic_launcher); Textview.settext (Skills[groupposition]);return  Convertview;} @Overridepublic  view getchildview (int groupposition, int childposition,boolean  Islastchild, view convertview, viewgroup parent)  {// todo auto-generated  METHOD STUBIF (convertview==null) {convertview=getlayoutinflater (). Inflate (R.layout.child_item,  NULL); imageview imageview= (ImageView)  convertview.findviewbyid (r.id.imageviewchild_1); textview textview= (TextView)  convertview.findviewbyid (r.id.textviewchild_1); Imageview.setimageresource (R.drawable.ic_launcher); Textview.settext (Groups[groupposition][childposition]);} Return convertview;} @Overridepublic  boolean ischildselectable (Int&nbsP;groupposition, int childposition)  {// TODO Auto-generated method  Stubreturn true;}}}

650) this.width=650; "Src=" Http://s2.51cto.com/wyfs02/M00/8B/8C/wKioL1hQ_y3CFvIhAACn1k8Opfw784.png-wh_500x0-wm_3 -wmp_4-s_3195450789.png "title=" _D6RSG) 9w%l35h[w8o (_9c.png "alt=" Wkiol1hq_y3cfvihaacn1k8opfw784.png-wh_50 "/>

This article is from the "matengbing" blog, make sure to keep this source http://matengbing.blog.51cto.com/11395502/1882709

Android's Expandablelistview