How to perform this action in Android Activity?

How to perform this action in Android Activity? - android

I have a ListView, where the ListItem contains student's registration number and their name. So, the following is the action I would like to perform.
When I click the ListItem, the ListItem expands (or a layout appears between the two ListItem or something like that happens) and the expanded section displays further information about that student (say his group, his age and stuffs like that). The expanded layout/block may also provide the option to receive feedback from the user (say, the teacher) who uses the app. I don't have the required reputation to post an Image. Please click the below link for a visual understanding of what I would like to develop.
http://tinyurl.com/q2auwuk
Unfortunately, I am yet to find how to perform such an action. I mean I am a newbie to android development. Hence may be I am short of various Android's View possibilities even to perform a successful google search. Any assistance would be of great help.

It sounds like you would want something like an ExpandableListView.
You can implement one like below. Scroll down for the link to the full tutorial on AndroidHive.
activity_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"
android:background="#f4f4f4" >
<ExpandableListView
android:id="#+id/lvExp"
android:layout_height="match_parent"
android:layout_width="match_parent"/>
</LinearLayout>
list_group.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="wrap_content"
android:orientation="vertical"
android:padding="8dp"
android:background="#000000">
<TextView
android:id="#+id/lblListHeader"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
android:textSize="17dp"
android:textColor="#f9f93d" />
</LinearLayout>
Create one more xml file named list_item.xml for child list item. This will contain simple TextView element.
list_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="55dip"
android:orientation="vertical" >
<TextView
android:id="#+id/lblListItem"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="17dip"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft" />
</LinearLayout>
Create a new class file called ExpandableListAdapter.java and extend this from BaseExpandableListAdapter. This class provides required methods to render listview.
ExpandableListAdapter.java
package info.androidhive.expandablelistview;
import java.util.HashMap;
import java.util.List;
import android.content.Context;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
#Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
#Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
#Override
public int getGroupCount() {
return this._listDataHeader.size();
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
Once you are done with customer adapter, open your MainActivity.java and do the following changes. In the following I created required data needed for list view and passed it to custom adapter.
MainActivity.java
package info.androidhive.expandablelistview;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ExpandableListView.OnGroupClickListener;
import android.widget.ExpandableListView.OnGroupCollapseListener;
import android.widget.ExpandableListView.OnGroupExpandListener;
import android.widget.Toast;
public class MainActivity extends Activity {
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// get the listview
expListView = (ExpandableListView) findViewById(R.id.lvExp);
// preparing list data
prepareListData();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
}
/*
* Preparing the list data
*/
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("Top 250");
listDataHeader.add("Now Showing");
listDataHeader.add("Coming Soon..");
// Adding child data
List<String> top250 = new ArrayList<String>();
top250.add("The Shawshank Redemption");
top250.add("The Godfather");
top250.add("The Godfather: Part II");
top250.add("Pulp Fiction");
top250.add("The Good, the Bad and the Ugly");
top250.add("The Dark Knight");
top250.add("12 Angry Men");
List<String> nowShowing = new ArrayList<String>();
nowShowing.add("The Conjuring");
nowShowing.add("Despicable Me 2");
nowShowing.add("Turbo");
nowShowing.add("Grown Ups 2");
nowShowing.add("Red 2");
nowShowing.add("The Wolverine");
List<String> comingSoon = new ArrayList<String>();
comingSoon.add("2 Guns");
comingSoon.add("The Smurfs 2");
comingSoon.add("The Spectacular Now");
comingSoon.add("The Canyons");
comingSoon.add("Europa Report");
listDataChild.put(listDataHeader.get(0), top250); // Header, Child data
listDataChild.put(listDataHeader.get(1), nowShowing);
listDataChild.put(listDataHeader.get(2), comingSoon);
}
}
Here's the full tutorial for reference.

Related

How put image in Expandable List View in different mood

to view sample image , please click
I want to use expandable list view With the following codes . but I want put 2 different image in header 1 and 2 different image in header 2 , also put 3 different image in sub item 1 ans 2 different image in sub item 2 . I'm use it in eclips Android Programing
Code ExpandableListAdapter:
package com.expand.test;
import java.util.HashMap;
import java.util.List;
import android.content.Context;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
#Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
#Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
#Override
public int getGroupCount() {
return this._listDataHeader.size();
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
MainActivity Code :
package com.expand.test;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ExpandableListView;
public class MainActivity extends Activity {
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// get the listview
expListView = (ExpandableListView) findViewById(R.id.lvExp);
// preparing list data
prepareListData();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
}
/*
* Preparing the list data
*/
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("Test1");
listDataHeader.add("Test2");
listDataHeader.add("Test3");
// Adding child data
List<String> top250 = new ArrayList<String>();
top250.add("SubItem1");
List<String> nowShowing = new ArrayList<String>();
nowShowing.add("SubItem1 ");
List<String> comingSoon = new ArrayList<String>();
comingSoon.add("SubItem1 ");
listDataChild.put(listDataHeader.get(0), top250); // Header, Child data
listDataChild.put(listDataHeader.get(1), nowShowing);
listDataChild.put(listDataHeader.get(2), comingSoon);
}
}
activity_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"
android:background="#f4f4f4" >
<ExpandableListView
android:id="#+id/lvExp"
android:layout_height="match_parent"
android:layout_width="match_parent" android:divider="#null"/>
</LinearLayout>
list_itme:
<?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="55dip"
android:orientation="vertical" >
<TextView
android:id="#+id/lblListItem"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:textSize="17dip"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft" android:textColor="#000000"/>
</LinearLayout>
list_group.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="wrap_content"
android:orientation="vertical"
android:padding="8dp"
android:background="#000000">
<TextView
android:id="#+id/lblListHeader"
android:layout_width="fill_parent"
android:layout_height="32dip"
android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
android:textSize="17dp"
android:textColor="#f9f93d" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" android:gravity="right">
<ImageView
android:id="#+id/ImageView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher" />
</LinearLayout>
</LinearLayout>

how to add expandable listview inside material design navigation drawer in android?

I want to add expandable listview inside material design navigation drawer in android? like this application https://play.google.com/store/apps/details?id=com.rarlab.rar

ExpandablelistViewActivity.java:
/**********Expandable Listview Inside Navigation Drawer************/
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.view.View;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ExpandableListView.OnGroupClickListener;
import android.widget.ExpandableListView.OnGroupCollapseListener;
import android.widget.ExpandableListView.OnGroupExpandListener;
import android.widget.FrameLayout;
import android.widget.Toast;
public class ExpandablelistViewActivity extends Activity {
private DrawerLayout mDrawerLayout;
FrameLayout actContent;
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_expandablelist_view);
/************* ExpandableListView **********/
expListView = (ExpandableListView) findViewById(R.id.lvExp);
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
prepareListData();
listAdapter = new ExpandableListAdapter(
ExpandablelistViewActivity.this, listDataHeader, listDataChild);
expListView.setAdapter(listAdapter);
//expandAll();
// Listview Group click listener
expListView.setOnGroupClickListener(new OnGroupClickListener() {
#Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
// mDrawerLayout.closeDrawers();
// Toast.makeText(getApplicationContext(),
// "Group Clicked " + listDataHeader.get(groupPosition),
// Toast.LENGTH_SHORT).show();
return false;
}
});
// Listview Group expanded listener
expListView.setOnGroupExpandListener(new OnGroupExpandListener() {
#Override
public void onGroupExpand(int groupPosition) {
// mDrawerLayout.closeDrawers();
/*Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Expanded",
Toast.LENGTH_SHORT).show();*/
}
});
// Listview Group collasped listener
expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {
#Override
public void onGroupCollapse(int groupPosition) {
mDrawerLayout.closeDrawers();
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Collapsed",
Toast.LENGTH_SHORT).show();
}
});
// Listview on child click listener
expListView.setOnChildClickListener(new OnChildClickListener() {
#Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
mDrawerLayout.closeDrawers();
// TODO Auto-generated method stub
Toast.makeText(
getApplicationContext(),
listDataHeader.get(groupPosition)
+ " : "
+ listDataChild.get(
listDataHeader.get(groupPosition)).get(
childPosition), Toast.LENGTH_SHORT)
.show();
return false;
}
});
}
// method to expand all groups
private void expandAll() {
int count = listAdapter.getGroupCount();
for (int i = 0; i < count; i++) {
expListView.expandGroup(i);
}
}
/*
* Preparing the list data
*/
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("Top 250");
listDataHeader.add("Now Showing");
listDataHeader.add("Coming Soon..");
// Adding child data
List<String> top250 = new ArrayList<String>();
top250.add("The Shawshank Redemption");
top250.add("The Godfather");
top250.add("The Godfather: Part II");
top250.add("Pulp Fiction");
top250.add("The Good, the Bad and the Ugly");
top250.add("The Dark Knight");
top250.add("12 Angry Men");
List<String> nowShowing = new ArrayList<String>();
nowShowing.add("The Conjuring");
nowShowing.add("Despicable Me 2");
nowShowing.add("Turbo");
nowShowing.add("Grown Ups 2");
nowShowing.add("Red 2");
nowShowing.add("The Wolverine");
List<String> comingSoon = new ArrayList<String>();
comingSoon.add("2 Guns");
comingSoon.add("The Smurfs 2");
comingSoon.add("The Spectacular Now");
comingSoon.add("The Canyons");
comingSoon.add("Europa Report");
listDataChild.put(listDataHeader.get(0), top250); // Header, Child data
listDataChild.put(listDataHeader.get(1), nowShowing);
listDataChild.put(listDataHeader.get(2), comingSoon);
}
}
ExpandablelistViewActivity Layout ::
/*********************ExpandablelistViewActivity Layout *****************************************/
<LinearLayout
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:background="#drawable/tropical"
tools:context="com.example.localization.ExpandablelistViewActivity" >
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<!-- Listview to display slider menu -->
<ExpandableListView
android:id="#+id/lvExp"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="#color/list_divider"
android:dividerHeight="1dp" />
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
ExpandableListAdapter.java:
/****************************ExpandableListAdapter*******************************************/
import java.util.HashMap;
import java.util.List;
import android.content.Context;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
#Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
#Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
#Override
public int getGroupCount() {
return this._listDataHeader.size();
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
// lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
list_group layout :
/********************* list_group layout*****************************/
<?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="wrap_content"
android:orientation="vertical"
android:padding="8dp" >
<TextView
android:id="#+id/lblListHeader"
android:layout_width="fill_parent"
android:layout_height="wrap_content" android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
android:textColor="#color/black"
android:textSize="17dp" />
</LinearLayout>
list_item layout:
/********************* list_item layout*****************************/
<?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="55dip"
android:orientation="vertical" >
<TextView
android:id="#+id/lblListItem"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="17dip"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:textColor="#color/black"
android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft" />
< / LinearLayout>

You can use DrawerLayout and inside it use AnimatedExpandableListView here
Example:
<FrameLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
<AnimatedExpandableListView
android:id="#+id/left_drawer_user_courses"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#color/side_menu_color"
android:choiceMode="singleChoice"
android:divider="#drawable/line_bettwen_courses"
android:groupIndicator="#drawable/expandable_list_indicator" />
<LinearLayout
android:id="#+id/right_drawer_user_info"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="end"
android:background="#color/side_menu_color"
android:divider="#android:color/transparent"
android:dividerHeight="0dp"
android:orientation="vertical">
<include layout="#layout/userinfo_side_menu"></include>
</LinearLayout>

How to add subitems in a Navigation Drawer

I want to add subitems in my navigation drawer but i am not able to execute it because i have no idea about the logic , i have tried some examples but i am able to display only the items.
i have tried the following code :
package com.example.demo_data1;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class NavDrawer extends Activity {
String[] menu;
DrawerLayout dLayout;
ListView dList;
ArrayAdapter<String> adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.third_page);
menu = new String[]{"Home","Android","Windows","Linux","Raspberry Pi","WordPress","Videos","Contact Us"};
dLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
dList = (ListView) findViewById(R.id.drawerList);
adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,menu);
dList.setAdapter(adapter);
dList.setSelector(android.R.color.holo_blue_dark);
dList.setOnItemClickListener(new OnItemClickListener(){
#Override
public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {
dLayout.closeDrawers();
Bundle args = new Bundle();
args.putString("Menu", menu[position]);
Intent i = new Intent(NavDrawer.this, NavDrawer.class);
switch(position){
case 0:
i = new Intent(NavDrawer.this, MainActivity.class);
break;
case 1:
i = new Intent(NavDrawer.this, Retrieve.class);
break;
}
i.putExtra(null, args);
startActivity(i);
}
});
}
}
Below is the xml layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<FrameLayout
android:id="#+id/mainContent"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
<ListView android:id="#+id/drawerList"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="#android:color/transparent"
android:dividerHeight="0dp"
android:background="#fff"></ListView>
</android.support.v4.widget.DrawerLayout>
I just want to add subitems to its respective item and the subitems should display on the right side of its parent.
So please anyone can help me with this m a bit new to android,
Thanks and regards.

You can add views to drawer in the xml. Try this:
<!-- Main layout -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/app_background"
android:orientation="vertical" >
<!-- Place your main screen items here -->
<TextView
android:id="#+id/tvText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Main" />
</LinearLayout>
<!-- Slider menu -->
<LinearLayout
android:id="#+id/menuDrawer"
android:layout_width="290dp"
android:layout_height="match_parent"
android:layout_gravity="end"
android:background="#color/app_background"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="#+id/btButton1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Button2" />
<Button
android:id="#+id/btButton2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Button2" />
</LinearLayout>
<ExpandableListView
android:id="#+id/elvItems"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>

Use Expandable listview in Drawer
Below is an example
public class MainActivity extends Activity {
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// get the listview
expListView = (ExpandableListView) findViewById(R.id.lvExp);
// preparing list data
prepareListData();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
// Listview Group click listener
expListView.setOnGroupClickListener(new OnGroupClickListener() {
#Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
// Toast.makeText(getApplicationContext(),
// "Group Clicked " + listDataHeader.get(groupPosition),
// Toast.LENGTH_SHORT).show();
return false;
}
});
// Listview Group expanded listener
expListView.setOnGroupExpandListener(new OnGroupExpandListener() {
#Override
public void onGroupExpand(int groupPosition) {
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Expanded",
Toast.LENGTH_SHORT).show();
}
});
// Listview Group collasped listener
expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {
#Override
public void onGroupCollapse(int groupPosition) {
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Collapsed",
Toast.LENGTH_SHORT).show();
}
});
// Listview on child click listener
expListView.setOnChildClickListener(new OnChildClickListener() {
#Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
Toast.makeText(
getApplicationContext(),
listDataHeader.get(groupPosition)
+ " : "
+ listDataChild.get(
listDataHeader.get(groupPosition)).get(
childPosition), Toast.LENGTH_SHORT)
.show();
return false;
}
});
}
/*
* Preparing the list data
*/
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("Top 250");
listDataHeader.add("Now Showing");
listDataHeader.add("Coming Soon..");
// Adding child data
List<String> top250 = new ArrayList<String>();
top250.add("The Shawshank Redemption");
top250.add("The Godfather");
top250.add("The Godfather: Part II");
top250.add("Pulp Fiction");
top250.add("The Good, the Bad and the Ugly");
top250.add("The Dark Knight");
top250.add("12 Angry Men");
List<String> nowShowing = new ArrayList<String>();
nowShowing.add("The Conjuring");
nowShowing.add("Despicable Me 2");
nowShowing.add("Turbo");
nowShowing.add("Grown Ups 2");
nowShowing.add("Red 2");
nowShowing.add("The Wolverine");
List<String> comingSoon = new ArrayList<String>();
comingSoon.add("2 Guns");
comingSoon.add("The Smurfs 2");
comingSoon.add("The Spectacular Now");
comingSoon.add("The Canyons");
comingSoon.add("Europa Report");
listDataChild.put(listDataHeader.get(0), top250); // Header, Child data
listDataChild.put(listDataHeader.get(1), nowShowing);
listDataChild.put(listDataHeader.get(2), comingSoon);
}}
Adapter
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context,
List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
#Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(
this._listDataHeader.get(groupPosition)).get(
childPosititon);
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public View getChildView(int groupPosition,
final int childPosition, boolean isLastChild,
View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition,
childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item,
null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(
this._listDataHeader.get(groupPosition)).size();
}
#Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
#Override
public int getGroupCount() {
return this._listDataHeader.size();
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group,
null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int groupPosition,
int childPosition) {
return true;
}
}

Only expandable listview showing up in activity

I'm making an android app for an automatic salad machine. The app lets you choose your ingredients and such, and then sends it to the machine. I set up an activity with an expandable listview to hold the ingredients, but I also need a next button on the activity and a nutritional information box below it. I added them to the activity, but when I run it only the expandable listview shows up.
Here's the code for the activity:
<?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"
android:weightSum="1">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Next"
android:id="#+id/button"
android:layout_gravity="right" />
<ExpandableListView
android:id="#+id/list"
android:layout_height="286dp"
android:layout_width="match_parent"
android:groupIndicator="#null"
android:divider="#A4C739"
android:dividerHeight="0.5dp"
android:layout_weight="1.15" />
<TextView
android:layout_width="match_parent"
android:layout_height="77dp"
android:text="Nutrition Facts:"
android:id="#+id/nutritionTV" />
</LinearLayout>
and here's the code for the class that goes with it:
package com.picknchew.companionapp;
import java.util.ArrayList;
import android.app.ExpandableListActivity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.widget.ExpandableListView;
public class ChooseIngredientsActivity extends ExpandableListActivity{
private ArrayList<String> parentItems = new ArrayList<String>();
private ArrayList<Object> childItems = new ArrayList<Object>();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// this is not really necessary as ExpandableListActivity contains an ExpandableList
//setContentView(R.layout.main);
ExpandableListView expandableList = getExpandableListView(); // you can use (ExpandableListView) findViewById(R.id.list)
expandableList.setDividerHeight(2);
expandableList.setGroupIndicator(null);
expandableList.setClickable(true);
setGroupParents();
setChildData();
MyExpandableAdapter adapter = new MyExpandableAdapter(parentItems, childItems);
adapter.setInflater((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE), this);
expandableList.setAdapter(adapter);
expandableList.setOnChildClickListener(this);
}
public void setGroupParents() {
parentItems.add("Lettuce");
parentItems.add("Protein");
parentItems.add("Fruit");
parentItems.add("Dressings");
}
public void setChildData() {
// Android
ArrayList<String> child = new ArrayList<String>();
child.add("Romain");
child.add("Iceberg");
child.add("Arugula");
child.add("Green");
childItems.add(child);
// Core Java
child = new ArrayList<String>();
child.add("Tofu");
child.add("Shredded Cheddar");
child.add("Sliced Eggs");
child.add("Beans");
child.add("Avocado");
childItems.add(child);
// Desktop Java
child = new ArrayList<String>();
child.add("Melon");
child.add("Watermelon");
child.add("Pineapple");
child.add("Grapefruit");
childItems.add(child);
// Enterprise Java
child = new ArrayList<String>();
child.add("Honey Mustard");
child.add("Ranch");
child.add("Caesar");
child.add("Vinaigrette");
childItems.add(child);
}
}
and finally here's the code for the expandable list view adapter, in case that's relevant:
package com.picknchew.companionapp;
import java.util.ArrayList;
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.CheckedTextView;
import android.widget.TextView;
import android.widget.Toast;
public class MyExpandableAdapter extends BaseExpandableListAdapter {
private Activity activity;
private ArrayList<Object> childtems;
private LayoutInflater inflater;
private ArrayList<String> parentItems, child;
public MyExpandableAdapter(ArrayList<String> parents, ArrayList<Object> childern) {
this.parentItems = parents;
this.childtems = childern;
}
public void setInflater(LayoutInflater inflater, Activity activity) {
this.inflater = inflater;
this.activity = activity;
}
#Override
public View getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
child = (ArrayList<String>) childtems.get(groupPosition);
CheckBox checkbox = null;
if (convertView == null) {
convertView = inflater.inflate(R.layout.group, null);
}
checkbox = (CheckBox) convertView.findViewById(R.id.checkBox2);
checkbox.setText(child.get(childPosition));
convertView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(activity, child.get(childPosition),
Toast.LENGTH_SHORT).show();
}
});
return convertView;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = inflater.inflate(R.layout.child, null);
}
((CheckedTextView) convertView).setText(parentItems.get(groupPosition));
((CheckedTextView) convertView).setChecked(isExpanded);
return convertView;
}
#Override
public Object getChild(int groupPosition, int childPosition) {
return null;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return 0;
}
#Override
public int getChildrenCount(int groupPosition) {
return ((ArrayList<String>) childtems.get(groupPosition)).size();
}
#Override
public Object getGroup(int groupPosition) {
return null;
}
#Override
public int getGroupCount() {
return parentItems.size();
}
#Override
public void onGroupCollapsed(int groupPosition) {
super.onGroupCollapsed(groupPosition);
}
#Override
public void onGroupExpanded(int groupPosition) {
super.onGroupExpanded(groupPosition);
}
#Override
public long getGroupId(int groupPosition) {
return 0;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return false;
}
}

Mixing fixed heights with weights won't work.
What you can do: set all elements' height to 0 and assign them weights.
What I would do: use a RelativeLayout, put the Button at the top, the TextView at the bottom (alignParentBottom="true") and the ListView inbetween like
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Next"
android:id="#+id/button" />
<TextView
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:layout_height="77dp"
android:text="Nutrition Facts:"
android:id="#+id/nutritionTV" />
<ExpandableListView
android:layout_above="#+id/nutritionTV"
android:layout_below="#+id/button"
android:id="#+id/list"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:groupIndicator="#null"
android:divider="#A4C739"
android:dividerHeight="0.5dp" />
</RelativeLayout>
Result:
EDIT: You have to actually use this layout, which you at the moment don't do:
// this is not really necessary as ExpandableListActivity contains an ExpandableList
//setContentView(R.layout.main);
Uncomment the setContentView line. Don't forget to assign the views correctly, ie
ExpandableListView expandableList = getExpandableListView(); // you can use (ExpandableListView) findViewById(R.id.list)
will become
ExpandableListView expandableList = (ExpandableListView) findViewById(R.id.list)

Android: CheckBox tree

In my application, I have a list and a button, in my list i want when i select parent item all of the child-item be selected indeed I want a Check-box tree. I use an Expandable List View but i have a problem in my code:
My code is:
list_group.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="wrap_content"
android:orientation="vertical"
android:padding="8dp"
android:background="#000000">
<CheckBox
android:id="#+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:layout_marginLeft="30dp"
android:layout_marginRight="2dp"
android:focusable="false"/>
<TextView
android:id="#+id/lblListHeader"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
android:textSize="17dp"
android:textColor="#ffffff" />
</LinearLayout>
list_item2.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="55dip"
android:orientation="horizontal"
android:background="#ffffff">
<CheckBox
android:id="#+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:layout_marginLeft="30dp"
android:layout_marginRight="2dp"
android:focusable="false"/>
<TextView
android:id="#+id/lblListItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="17dip"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:layout_marginLeft="-40dp"
android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft"/>
</LinearLayout>
backup_list.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#000000">
<ExpandableListView
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:id="#+id/expandableListView"/>
<Button
android:id="#+id/backup"
android:layout_gravity="center_horizontal"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:text="BackUp"
android:clickable="true" />
</LinearLayout>
How can i fix it?
ExpandableListAdapter:
package com.mCloud.android.ui.activity;
import java.util.HashMap;
import java.util.List;
import android.content.Context;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
import com.mCloud.android.R;
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
#Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item2, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
#Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
#Override
public int getGroupCount() {
return this._listDataHeader.size();
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded,View convertView, ViewGroup parent){
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition){
return true;
}
}
ParentActivity:
package com.mCloud.android.ui.activity;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.widget.ExpandableListView;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.MenuItem;
import com.mCloud.android.Log_OC;
import com.mCloud.android.R;
import com.mCloud.android.filters.MediaFilenameFilter;
public class ParentActivity extends SherlockFragmentActivity {
private static final String TAG = "mCloudPreferences";
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.backup_list);
ActionBar actionBar = getSherlock().getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
// get the listview
expListView = (ExpandableListView) findViewById(R.id.expandableListView);
// preparing list data
prepareListData();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
}
#Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
super.onMenuItemSelected(featureId, item);
Intent intent;
switch (item.getItemId()) {
case android.R.id.home:
intent = new Intent(getBaseContext(), DisplayInfoActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
break;
default:
Log_OC.w(TAG, "Unknown menu item triggered");
return false;
}
return true;
}
/*
* Preparing the list data
*/
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataHeader.add("Files");
listDataHeader.add("Apps");
listDataHeader.add("SMS");
listDataHeader.add("Contacts");
listDataHeader.add("Call Logs");
listDataHeader.add("Calender");
listDataHeader.add("Setting");
List<String> files = new ArrayList<String>();
File file = Environment.getExternalStorageDirectory();
String[] list = file.list(new MediaFilenameFilter());
if (list != null) {
for (String name : list)
files.add(name);
}
files.add("Advance Selection");
List<String> apps = new ArrayList<String>();
apps.add("All Apps");
List<String> sms = new ArrayList<String>();
sms.add("Inbox");
sms.add("Draft");
sms.add("Send");
List<String> contacts = new ArrayList<String>();
contacts.add("All Contacts");
List<String> calllogs = new ArrayList<String>();
calllogs.add("Resived");
calllogs.add("Missed");
calllogs.add("Dailed");
List<String> calender = new ArrayList<String>();
calender.add("All calender");
List<String> setting = new ArrayList<String>();
setting.add("All setting");
listDataChild = new HashMap<String, List<String>>();
listDataChild.put(listDataHeader.get(0), files);
listDataChild.put(listDataHeader.get(1), apps);
listDataChild.put(listDataHeader.get(2), sms);
listDataChild.put(listDataHeader.get(3), contacts);
listDataChild.put(listDataHeader.get(4), calllogs);
listDataChild.put(listDataHeader.get(5), calender);
listDataChild.put(listDataHeader.get(6), setting);
}
}

but you do understand that ExpandableListView work like what I asked you..?
when you press on parent the parent expands (unless you state otherwise) and when you clikc on it again the parent collapses..
if you want to be able to expand the parent and also be able to check and uncheck the parent checkbox you need to give two views in the same row of the parent, the first is the checkbox and the second is the parent title (which can be empty like "")
they should be side by side.
you can do somthing like this:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/Rl11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:background="#drawable/desserts_main_expand"
android:orientation="horizontal" >
<ImageView
android:id="#+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:clickable="true"
android:cropToPadding="true"
android:padding="4dp"
android:scaleType="fitXY"
android:src="#android:drawable/ic_menu_add" />
<TextView
android:id="#+id/ParentTextI"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
android:layout_toLeftOf="#+id/addIng"
android:layout_toRightOf="#+id/Side_image"
android:gravity="center_vertical"
android:scrollHorizontally="true"
android:text="dummy text"
android:textAlignment="center"
android:textColor="#color/white"
android:textSize="20sp"
android:textStyle="bold|italic" />
</RelativeLayout>
and then in the adapter:
declare a global variable
CheckBox checkbox;
**this is only for the parent checkbox part
public View getGroupView(int groupPosition, boolean isExpanded, View convertView,
ViewGroup parent) {
checkbox.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(checkbox.isChecked()=true)
{checkbox.setChecked(false);}
else checkbox.setChecked(true);
ParentActivity.checkall();
}
});
and then in ParentActivity:
add a function that checks every child of the same parent:
public static void checkall()
{
for(int j=0 ; j<files.size() ; j++)
{if (listAdapter.checkbox.isChecked()==true)
{files.get(j).setChecked(true)};
}
I have made the code specially for you so there might be some error cause i havnt checked it..
but it supposed to be somthing like this.

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

How to perform this action in Android Activity? - android

Related

How put image in Expandable List View in different mood

how to add expandable listview inside material design navigation drawer in android?

How to add subitems in a Navigation Drawer

Only expandable listview showing up in activity

Android: CheckBox tree

Categories

Resources