android -- ExpandableListView

package com.cq.expandable.listview01;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.TextView;
import android.widget.Toast;

public class ExpandableListView01Activity extends Activity {
    /** Called when the activity is first created. */

ExpandableListView expandablelistview;
public String [] tourism = {"ARRIVAL", "CITY", "SOCIABLE", "ENTERTAINMENT", "HOTEL", "MEDICAL TREATMENT"};
public String [] arrival = {"customs", "passport"};
public String [] city = {"general", "transport", "taxi"};
public String [] sociable = {"personal", "profession", "meeting", "language"};
public String [] entertainment = {"leisure", "theaters", "exhibition", "sports"};
public String [] hotel = {"general", "check-in", "staying", "check-out"};
public String [] medical = {"general", "surgeons", "dentist", "pharmacy"};

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
     
        expandablelistview = (ExpandableListView)findViewById(R.id.ExpandableListView01);
        expandablelistview.setAdapter(new TreeViewAdapter(this));
    }
 
 
    public class TreeViewAdapter extends BaseExpandableListAdapter {

    private LayoutInflater inflater;
    private LayoutInflater inflater1;
   
public TreeViewAdapter(
Context c) {
this.inflater = LayoutInflater.from(c);
this.inflater1 = LayoutInflater.from(c);
}



@Override
public Object getChild(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return childPosition;
}

@Override
public long getChildId(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return 0;
}

@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View myView = inflater1.inflate(R.layout.child, null);
final int a = groupPosition;
final int b = childPosition;
//myView.setBackgroundResource(R.drawable.monkey32);
TextView textview = (TextView) myView.findViewById(R.id.TextView001);

textview.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(ExpandableListView01Activity.this, "Group= "+ Integer.toString(a) + " , Child = " + Integer.toString(b), Toast.LENGTH_LONG).show();
Intent intent = new Intent();
intent.setClass(ExpandableListView01Activity.this, IntentView.class);
startActivity(intent);
}
});

if(groupPosition==0){
                textview.setText(arrival[childPosition]);
            }else if(groupPosition==1){
                textview.setText(city[childPosition]);
            }else if(groupPosition==2){
                textview.setText(sociable[childPosition]);  
            }else if(groupPosition==3){
                textview.setText(entertainment[childPosition]);  
            }else if(groupPosition==4){
                textview.setText(hotel[childPosition]);  
            }else if(groupPosition==5){
                textview.setText(medical[childPosition]);  
            }  

return myView;
}



@Override
public int getChildrenCount(int groupPosition) {
if(groupPosition==0){
               return arrival.length;
           }else if(groupPosition==1){
               return city.length;
           }else if(groupPosition==2){
               return sociable.length;
           }else if(groupPosition==3){
               return entertainment.length;
           }else if(groupPosition==4){
               return hotel.length;
           }else {
               return medical.length;
           }
}

@Override
public Object getGroup(int groupPosition) {
// TODO Auto-generated method stub
return null;
}

@Override
public int getGroupCount() {
// TODO Auto-generated method stub
return tourism.length;
}

@Override
public long getGroupId(int groupPosition) {
// TODO Auto-generated method stub
return groupPosition;
}

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
// TODO Auto-generated method stub

View myView = inflater.inflate(R.layout.father, null);
//myView.setBackgroundResource(R.drawable.group);
            TextView textview = (TextView) myView.findViewById(R.id.TextView01);
            textview.setText(tourism[groupPosition]);
            textview.setTextColor(Color.YELLOW);
            return myView;
}

@Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return false;
}

@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return false;
}
   
    }
 

 
}

*********************************************
Main.xml:


<?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="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />
 
    <ExpandableListView android:id="@+id/ExpandableListView01"
        android:layout_width="200dp"
        android:layout_height="fill_parent"
        android:layout_x="20dip"
        android:layout_y="30dip"
        android:groupIndicator="@null"
     
        android:clickable="true"
        android:scrollbarAlwaysDrawHorizontalTrack="true">
</ExpandableListView>
<!-- android:childDivider="@drawable/child_divider"  -->

</LinearLayout>



*********************************************
Father.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="match_parent"
    android:orientation="vertical" >

    <TextView android:id="@+id/TextView01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16px"
        android:gravity="center">
</TextView>

</LinearLayout>


＊＊＊＊＊＊＊＊
Child.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="match_parent"
    android:orientation="horizontal" >

    <ImageView android:id="@+id/ImageView01"
        android:layout_height="30dp"
        android:layout_width="30dp"
        android:background="@drawable/monkey32">
   </ImageView>
 
   <TextView android:id="@+id/TextView001"
       android:layout_height="fill_parent"
        android:layout_width="fill_parent"
        android:gravity="center">
   </TextView>

</LinearLayout>

******************************
IntentView.java


package com.cq.expandable.listview01;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class IntentView extends Activity{

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
TextView textview = new TextView (this);
textview.setText("I LOVE TATA");
setContentView(textview);
}

}