Android ExpandableListView with child elements using Layout fil Example.
Author : Ishtek

Using Android API Level : 7 
Some of the screen shots of this application are as follows:
Android-ExpandableListView-Layout-Example/.classpath

<?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src"/> <classpathentry kind="src" path="gen"/> <classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/> <classpathentry kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/> <classpathentry kind="output" path="bin/classes"/> </classpath>


Android-ExpandableListView-Layout-Example/.project

<?xml version="1.0" encoding="UTF-8"?> <projectDescription> <name>ExampleExpandableListView</name> <comment></comment> <projects> </projects> <buildSpec> <buildCommand> <name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name> <arguments> </arguments> </buildCommand> <buildCommand> <name>com.android.ide.eclipse.adt.PreCompilerBuilder</name> <arguments> </arguments> </buildCommand> <buildCommand> <name>org.eclipse.jdt.core.javabuilder</name> <arguments> </arguments> </buildCommand> <buildCommand> <name>com.android.ide.eclipse.adt.ApkBuilder</name> <arguments> </arguments> </buildCommand> </buildSpec> <natures> <nature>com.android.ide.eclipse.adt.AndroidNature</nature> <nature>org.eclipse.jdt.core.javanature</nature> </natures> </projectDescription>


Android-ExpandableListView-Layout-Example/AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="net.techiecommunity.exampleexpandablelistview" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="7" android:targetSdkVersion="15" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/title_activity_main" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>


Android-ExpandableListView-Layout-Example/project.properties

# This file is automatically generated by Android Tools. # Do not modify this file -- YOUR CHANGES WILL BE ERASED! # # This file must be checked in Version Control Systems. # # To customize properties used by the Ant build system edit # "ant.properties", and override values to adapt the script to your # project structure. # # To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home): #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt # Project target. target=android-7


Android-ExpandableListView-Layout-Example/res/layout/activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="fill_parent" tools:context=".MainActivity" > <ExpandableListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignParentRight="true" > </ExpandableListView> </RelativeLayout>


Android-ExpandableListView-Layout-Example/res/layout/expandable_child_1_layout.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="horizontal" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Name"/> <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:width="150dp"/> </LinearLayout>


Android-ExpandableListView-Layout-Example/res/layout/expandable_child_2_layout.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="horizontal" > <RadioGroup android:layout_width="wrap_content" android:layout_height="wrap_content"> <RadioButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Male"/> <RadioButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Female"/> </RadioGroup> </LinearLayout>


Android-ExpandableListView-Layout-Example/res/layout/expandable_child_layout.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:id="@+id/txtChld1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Test" android:background="#ee66ff"/> </LinearLayout>


Android-ExpandableListView-Layout-Example/res/layout/expandable_group_layout.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:id="@+id/txt1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Test...." android:background="#EEAA00"/> </LinearLayout>


Android-ExpandableListView-Layout-Example/res/menu/activity_main.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/menu_settings" android:title="@string/menu_settings" android:orderInCategory="100" /> </menu>


Android-ExpandableListView-Layout-Example/res/values/strings.xml

<resources> <string name="app_name">ExampleExpandableListView</string> <string name="hello_world">Hello world!</string> <string name="menu_settings">Settings</string> <string name="title_activity_main">MainActivity</string> </resources>


Android-ExpandableListView-Layout-Example/res/values/styles.xml

<resources> <style name="AppTheme" parent="android:Theme.Light" /> </resources>


Android-ExpandableListView-Layout-Example/src/net/techiecommunity/exampleexpandablelistview/MainActivity.java

/** * @author Ishteak * @Contact reaching@techiecommunity.net * THESE SOURCE CODE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THESE * SOURCE CODE. */ package net.techiecommunity.exampleexpandablelistview; import android.app.ExpandableListActivity; import android.content.Context; import android.database.DataSetObserver; import android.graphics.Color; import android.os.Bundle; import android.view.LayoutInflater; import android.view.Menu; import android.view.View; import android.view.ViewGroup; import android.widget.ExpandableListAdapter; import android.widget.TextView; public class MainActivity extends ExpandableListActivity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ExampleAdapter adapter = new ExampleAdapter(this, getLayoutInflater()); setListAdapter(adapter); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } } class ExampleAdapter implements ExpandableListAdapter { Context context; LayoutInflater layoutInflater; public ExampleAdapter(Context context, LayoutInflater layoutInflater) { this.context = context; this.layoutInflater = layoutInflater; } @Override public boolean areAllItemsEnabled() { return true; } @Override public Object getChild(int groupPosition, int childPosition) { return null; } @Override public long getChildId(int groupPosition, int childPosition) { return 0; } @Override public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { View v = null; if(groupPosition == 0) { v = View.inflate(context, R.layout.expandable_child_layout, null); TextView txtView = (TextView) v.findViewById(R.id.txtChld1); txtView.setText("Green"); txtView.setTextSize(15f); txtView.setBackgroundColor(Color.GREEN); } if(groupPosition == 1) { v = View.inflate(context, R.layout.expandable_child_1_layout, null); } if(groupPosition == 2) { v = View.inflate(context, R.layout.expandable_child_2_layout, null); } if(groupPosition == 3) { v = View.inflate(context, R.layout.expandable_child_layout, null); TextView txtView = (TextView) v.findViewById(R.id.txtChld1); txtView.setText("Purple"); txtView.setTextSize(15f); } v.invalidate(); return v; } @Override public int getChildrenCount(int groupPosition) { return 1; } @Override public long getCombinedChildId(long groupId, long childId) { return 0; } @Override public long getCombinedGroupId(long groupId) { return 0; } @Override public Object getGroup(int groupPosition) { return null; } @Override public int getGroupCount() { return 4; } @Override public long getGroupId(int groupPosition) { return 0; } @Override public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { View v = convertView.inflate(context, R.layout.expandable_group_layout, null); TextView txtView = (TextView) v.findViewById(R.id.txt1); if(groupPosition == 0) { txtView.setText("Group Head 1"); txtView.setTextSize(15f); } if(groupPosition == 1) { txtView.setText("Group Head 2"); txtView.setTextSize(15f); } if(groupPosition == 2) { txtView.setText("Group Head 3"); txtView.setTextSize(15f); } if(groupPosition == 3) { txtView.setText("Group Head 4"); txtView.setTextSize(15f); } v.invalidate(); return v; } @Override public boolean hasStableIds() { return false; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return true; } @Override public boolean isEmpty() { return false; } @Override public void onGroupCollapsed(int groupPosition) { } @Override public void onGroupExpanded(int groupPosition) { } @Override public void registerDataSetObserver(DataSetObserver observer) { } @Override public void unregisterDataSetObserver(DataSetObserver observer) { } }


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Please enter same number as shown here 863

Name: UsingframeworksDated: 2013-11-22 18:44:25
Is there any ways to achieve this scenarios:

1. Handle any event that is raised on action from user, such as selecting a radio button etc. and 
   handling it to change value in another item in another child view. In short passing data and event across child views for separate Headers.

2. Placing a X button at the extreme right of the child and parent list item, and on click of it
   that particular item would be deleted from the Listview, and won't come back again even if this application is restarted after some time.

Thanks in advance..    
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Name: YogeshDated: 2013-12-05 10:12:52
Is there any ways to handle expand and contract events if any, of child elements/items within the expandable listview,
while any group is expanded or closed while working with ExpandableListView class from Android Platform.    
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Name: YogitaDated: 2015-05-28 12:10:43
Can You please help me to open new Activity after clicking on child item.?
Actually I want to open new Activity after clicking on Child item.plz help me out.
thank you.    
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Name: yesDated: 2015-10-30 12:14:28
very good    
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Name: @androidDated: 2016-01-27 12:30:36
after collapsing the expandable listview edittext value getting erased entered by user.    
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Name: GopinathDated: 2016-02-14 11:32:16
good    
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Name: BasilDated: 2016-03-07 08:58:30
I would like to get a sample example of this ExpandableListView    
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Name: khalilDated: 2016-08-28 01:18:22
thank you    
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