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布局文件

<?xml version="1.0" encoding="utf-8"?>  

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"       android:layout_width="fill_parent"       android:layout_height="fill_parent"       android:orientation="horizontal" >       <ExpandableListView         android:id="@+id/el_list"         android:layout_width="120dp"         android:layout_height="715dp"         android:layout_gravity="left"         android:background="#ffffff"         android:cacheColorHint="#abcdefff"         android:listSelector="#cdefabdc" >      <!--       android:cacheColorHint="#00000000"，这个设置拖动view时背景色           android:listSelector="#00000000" ，设置选中时的底色 -->       </ExpandableListView>            <ExpandableListView              android:id="@+id/el_list2"              android:layout_width="120dp"              android:layout_height="698dp"              android:background="#ffffff"              android:cacheColorHint="#abcdefff"              android:listSelector="#cdefabdc" >      <!--       android:cacheColorHint="#00000000"，这个设置拖动view时背景色           android:listSelector="#00000000" ，设置选中时的底色 -->       </ExpandableListView>       <ExpandableListView              android:id="@+id/el_list3"              android:layout_width="120dp"              android:layout_height="698dp"              android:background="#ffffff"              android:cacheColorHint="#abcdefff"              android:listSelector="#cdefabdc" >      <!--       android:cacheColorHint="#00000000"，这个设置拖动view时背景色           android:listSelector="#00000000" ，设置选中时的底色 -->       </ExpandableListView>           <Button          android:layout_width="120dp"         android:layout_height="wrap_content"         android:layout_weight="1"         android:text="返回"/>     

</LinearLayout>

主函数

package com.example.test;

import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.BaseExpandableListAdapter; import android.widget.ExpandableListView; import android.widget.ExpandableListView.OnChildClickListener; import android.widget.LinearLayout; import android.widget.TextView; public class TestExpandableListView2 extends Activity {      private  ExpandableListView mView;     private  ExpandableListView mView2;    private  ExpandableListView mView3;    private String[] generalsTypes = new String[] { "作物: " };      //子视图显示文字      private String[][] generals = new String[][] {              { "小麦", "玉米", "花生", "高粱", "水稻", "大豆" }};      private String[] generalsTypes2 = new String[] { "/亩" };      //子视图显示文字      private String[][] generals2 = new String[][] {              { "200-250kg", "250-300kg", "300-400kg", "400-500kg" }};     private String[] generalsTypes3 = new String[] { "施肥模式" };      //子视图显示文字      private String[][] generals3 = new String[][] {              { "化肥", "复合肥", "配方肥"}};      @Override       protected void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           setContentView(R.layout.expandable_listview2);           mView =(ExpandableListView) findViewById(R.id.el_list);           mView.setAdapter(new MyAdapter());                   mView2 =(ExpandableListView) findViewById(R.id.el_list2);          mView2.setAdapter(new MyAdapter2());                   mView3 =(ExpandableListView) findViewById(R.id.el_list3);          mView3.setAdapter(new MyAdapter3());        //点击子条目的时候更新主条目的文字         mView.setOnChildClickListener(new OnChildClickListener() {             public boolean onChildClick(ExpandableListView v, View arg1, int group,       int child, long arg4) {       if(child==0){       generalsTypes = new String[] { "作物:小麦" };       mView.setAdapter(new MyAdapter());       }       if(child==1){       generalsTypes = new String[] { "作物:玉米" };       mView.setAdapter(new MyAdapter());       }       if(child==2){       generalsTypes = new String[] { "作物:花生" };       mView.setAdapter(new MyAdapter());       }       if(child==3){       generalsTypes = new String[] { "作物:高粱" };       mView.setAdapter(new MyAdapter());       }       if(child==4){       generalsTypes = new String[] { "作物:水稻" };       mView.setAdapter(new MyAdapter());       }if(child==5){       generalsTypes = new String[] { "作物:大豆" };       mView.setAdapter(new MyAdapter());       }               return false;       }       });                  mView2.setOnChildClickListener(new OnChildClickListener() { public boolean onChildClick(ExpandableListView v, View arg1, int group, int child, long arg4) { if(child==0){ generalsTypes2 = new String[] { "200-250kg/亩" }; mView2.setAdapter(new MyAdapter2()); } if(child==1){ generalsTypes2 = new String[] { "250-300kg/亩" }; mView2.setAdapter(new MyAdapter2()); } if(child==2){ generalsTypes2 = new String[] { "300-400kg/亩" }; mView2.setAdapter(new MyAdapter2()); } if(child==3){ generalsTypes2 = new String[] { "400-500kg/亩" }; mView2.setAdapter(new MyAdapter2()); }     return false; } });          mView3.setOnChildClickListener(new OnChildClickListener() { public boolean onChildClick(ExpandableListView v, View arg1, int group, int child, long arg4) { if(child==0){ generalsTypes3 = new String[] { "化肥" }; mView3.setAdapter(new MyAdapter3()); } if(child==1){ generalsTypes3 = new String[] { "复合肥" }; mView3.setAdapter(new MyAdapter3()); } if(child==2){ generalsTypes3 = new String[] { "配方肥" }; mView3.setAdapter(new MyAdapter3()); }   return false; } });     }              class MyAdapter extends BaseExpandableListAdapter {                //自己定义一个获得textview的方法           TextView getTextView() {          //设置条目的宽高             AbsListView.LayoutParams lp = new AbsListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, 50);               TextView textView = new TextView(TestExpandableListView2.this);               textView.setLayoutParams(lp);               textView.setGravity(Gravity.CENTER_VERTICAL);               textView.setPadding(36, 0, 0, 0);               textView.setTextSize(20);               textView.setTextColor(Color.BLACK);               return textView;           }                 @Override           public int getGroupCount() {               return generalsTypes.length;                        }              @Override           public int getChildrenCount(int groupPosition) {               return generals[groupPosition].length;           }              @Override           public Object getGroup(int groupPosition) {              //返回的数据在后面填主条目充用         return generalsTypes[groupPosition];           }              @Override           public Object getChild(int groupPosition, int childPosition) {              //返回的数据在后面填充子条目用         return generals[groupPosition][childPosition];           }              @Override           public long getGroupId(int groupPosition) {               return groupPosition;           }              @Override           public long getChildId(int groupPosition, int childPosition) {               return childPosition;           }              @Override           public boolean hasStableIds() {               return true;           }              @Override  //获得主条目view对象         public View getGroupView(int groupPosition, boolean isExpanded,                   View convertView, ViewGroup parent) {                LinearLayout ll = new LinearLayout(TestExpandableListView2.this);                ll.setOrientation(0);   //             ImageView logo = new ImageView(ExpandableList.this);   //             logo.setImageResource(logos[groupPosition]);   //             logo.setPadding(50, 0, 0, 0);   //             ll.addView(logo);                TextView textView = getTextView();                textView.setTextColor(Color.BLUE);                textView.setText(getGroup(groupPosition).toString());                ll.addView(textView);                ll.setPadding(6, 0, 0, 0);                return ll;           }              @Override //将子条目内容加载到childview          public View getChildView(int groupPosition, int childPosition,                   boolean isLastChild, View convertView, ViewGroup parent) {                LinearLayout ll = new LinearLayout(TestExpandableListView2.this);                ll.setOrientation(0);                TextView textView = getTextView();                textView.setText(getChild(groupPosition, childPosition).toString());                ll.addView(textView);                return ll;           }       public boolean isChildSelectable(int groupPosition, int childPosition) {               return true;           }           }          class MyAdapter2 extends BaseExpandableListAdapter {         //自己定义一个获得textview的方法         TextView getTextView() {        //设置条目的宽高           AbsListView.LayoutParams lp = new AbsListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, 50);             TextView textView = new TextView(TestExpandableListView2.this);             textView.setLayoutParams(lp);             textView.setGravity(Gravity.CENTER_VERTICAL);             textView.setPadding(36, 0, 0, 0);             textView.setTextSize(20);             textView.setTextColor(Color.BLACK);             return textView;         }         @Override         public int getGroupCount() {             return generalsTypes2.length;                    }         @Override         public int getChildrenCount(int groupPosition) {             return generals2[groupPosition].length;         }         @Override         public Object getGroup(int groupPosition) {            //返回的数据在后面填主条目充用       return generalsTypes2[groupPosition];         }         @Override         public Object getChild(int groupPosition, int childPosition) {            //返回的数据在后面填充子条目用       return generals2[groupPosition][childPosition];         }         @Override         public long getGroupId(int groupPosition) {             return groupPosition;         }         @Override         public long getChildId(int groupPosition, int childPosition) {             return childPosition;         }         @Override         public boolean hasStableIds() {             return true;         }        //获得主条目view对象,一个textview用于显示主条目       public View getGroupView(int groupPosition, boolean isExpanded,                 View convertView, ViewGroup parent) {              LinearLayout ll = new LinearLayout(TestExpandableListView2.this);              ll.setOrientation(0);               TextView textView = getTextView();              textView.setTextColor(Color.BLUE);              textView.setText(getGroup(groupPosition).toString());              ll.addView(textView);              ll.setPadding(6, 0, 0, 0);              return ll;         }         @Override //将子条目内容加载到childview        public View getChildView(int groupPosition, int childPosition,                 boolean isLastChild, View convertView, ViewGroup parent) {              LinearLayout ll = new LinearLayout(TestExpandableListView2.this);              ll.setOrientation(0);              TextView textView = getTextView();              textView.setText(getChild(groupPosition, childPosition).toString());              ll.addView(textView);              return ll;         }     public boolean isChildSelectable(int groupPosition, int childPosition) {             return true;         }       }      class MyAdapter3 extends BaseExpandableListAdapter {         //自己定义一个获得textview的方法         TextView getTextView() {        //设置条目的宽高           AbsListView.LayoutParams lp = new AbsListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, 50);             TextView textView = new TextView(TestExpandableListView2.this);             textView.setLayoutParams(lp);             textView.setGravity(Gravity.CENTER_VERTICAL);             textView.setPadding(36, 0, 0, 0);             textView.setTextSize(20);             textView.setTextColor(Color.BLACK);             return textView;         }         @Override         public int getGroupCount() {             return generalsTypes3.length;                    }         @Override         public int getChildrenCount(int groupPosition) {             return generals3[groupPosition].length;         }         @Override         public Object getGroup(int groupPosition) {            //返回的数据在后面填主条目充用       return generalsTypes3[groupPosition];         }         @Override         public Object getChild(int groupPosition, int childPosition) {            //返回的数据在后面填充子条目用       return generals3[groupPosition][childPosition];         }         @Override         public long getGroupId(int groupPosition) {             return groupPosition;         }         @Override         public long getChildId(int groupPosition, int childPosition) {             return childPosition;         }         @Override         public boolean hasStableIds() {             return true;         }        //获得主条目view对象,一个textview用于显示主条目       public View getGroupView(int groupPosition, boolean isExpanded,                 View convertView, ViewGroup parent) {              LinearLayout ll = new LinearLayout(TestExpandableListView2.this);              ll.setOrientation(0);               TextView textView = getTextView();              textView.setTextColor(Color.BLUE);              textView.setText(getGroup(groupPosition).toString());              ll.addView(textView);              ll.setPadding(6, 0, 0, 0);              return ll;         }         @Override //将子条目内容加载到childview        public View getChildView(int groupPosition, int childPosition,                 boolean isLastChild, View convertView, ViewGroup parent) {              LinearLayout ll = new LinearLayout(TestExpandableListView2.this);              ll.setOrientation(0);              TextView textView = getTextView();              textView.setText(getChild(groupPosition, childPosition).toString());              ll.addView(textView);              return ll;         }     public boolean isChildSelectable(int groupPosition, int childPosition) {             return true;         }       }    }  

源码地址   http://download.csdn.net/detail/fei900724/8705943

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