Create New Android Project In Main Activity :
package com.multilayerexpandable;
import java.util.ArrayList;
import android.app.ExpandableListActivity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.Toast;
public class MainActivity extends ExpandableListActivity implements
OnChildClickListener {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ExpandableListView expandbleLis = getExpandableListView();
expandbleLis.setDividerHeight(2);
expandbleLis.setGroupIndicator(null);
expandbleLis.setClickable(true);
setGroupData();
setChildGroupData();
NewAdapter mNewAdapter = new NewAdapter(groupItem, childItem);
mNewAdapter
.setInflater(
(LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE),
this);
getExpandableListView().setAdapter(mNewAdapter);
expandbleLis.setOnChildClickListener(this);
}
public void setGroupData() {
groupItem.add("Android");
groupItem.add("Extras");
}
ArrayList<String> groupItem = new ArrayList<String>();
ArrayList<Object> childItem = new ArrayList<Object>();
public void setChildGroupData() {
/**
* Add Data For Android
*/
ArrayList<String> child = new ArrayList<String>();
child.add("Cupcake");
child.add("Donut");
child.add("Eclair");
child.add("Froyo");
child.add("Gingerbread");
child.add("Honeycomb");
child.add("Ice Cream Sandwich");
child.add("Jelly Bean");
childItem.add(child);
/**
* Add Data For Extras_
*/
child = new ArrayList<String>();
child.add("Dj-Android");
child.add("Dhaval Sodha Parmar");
childItem.add(child);
}
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
Toast.makeText(MainActivity.this, "Clicked On Child",
Toast.LENGTH_SHORT).show();
return true;
}
}
Class NewAdapter.java
package com.multilayerexpandable;
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.CheckedTextView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
@SuppressWarnings("unchecked")
public class NewAdapter extends BaseExpandableListAdapter {
public ArrayList<String> groupItem, tempChild;
public ArrayList<Object> Childtem = new ArrayList<Object>();
public LayoutInflater minflater;
public Activity activity;
public NewAdapter(ArrayList<String> grList, ArrayList<Object> childItem) {
groupItem = grList;
this.Childtem = childItem;
}
public void setInflater(LayoutInflater mInflater, Activity act) {
this.minflater = mInflater;
activity = act;
}
@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, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
tempChild = (ArrayList<String>) Childtem.get(groupPosition);
TextView text = null;
ImageView img = null;
if (convertView == null) {
convertView = minflater.inflate(R.layout.childrow, null);
}
text = (TextView) convertView.findViewById(R.id.textView1);
img = (ImageView) convertView.findViewById(R.id.childImage);
text.setText(tempChild.get(childPosition));
if (childPosition == (tempChild.size() - 1)) {
img.setImageResource(R.drawable.dh);
}
if (childPosition == tempChild.size()) {
img.setImageResource(R.drawable.dj);
}
convertView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(activity, tempChild.get(childPosition),
Toast.LENGTH_SHORT).show();
}
});
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return ((ArrayList<String>) Childtem.get(groupPosition)).size();
}
@Override
public Object getGroup(int groupPosition) {
return null;
}
@Override
public int getGroupCount() {
return groupItem.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 View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = minflater.inflate(R.layout.grouprow, null);
}
((CheckedTextView) convertView).setText(groupItem.get(groupPosition));
((CheckedTextView) convertView).setChecked(isExpanded);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return false;
}
}
Grouprow.xml
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="60dp"
android:layout_marginLeft="5dp"
android:gravity="center_vertical"
android:padding="10dp"
android:text="@string/hello_world"
android:textColor="#FFFFFF"
android:textSelectHandleLeft="@string/hello_world"
android:textSize="14sp"
android:textStyle="bold" />
childrow.xml
<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="40dp"
android:background="@android:color/black"
android:clickable="true"
android:orientation="vertical"
android:paddingLeft="40dp"
tools:context=".MainActivity" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="39dp"
android:gravity="center_vertical" >
<ImageView
android:id="@+id/childImage"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_margin="5dp"
android:background="@drawable/ic_launcher"
android:contentDescription="@string/hello_world" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:text="@string/hello_world"
android:textColor="#FFFFFF"
android:textSize="14sp"
android:textStyle="bold" />
</LinearLayout>
</LinearLayout>
Android Manifest file :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.multilayerexpandable"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:theme="@android:style/Theme.NoTitleBar"
android:name="com.multilayerexpandable.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
This code is working first time when i click on group but when i click on second group it shows abnormal behaviour as image appear in both group in different position.
ReplyDeleteThere is no Toast showing in my code.
ReplyDeleteCan you help me with that?
Thanks
you get any error??? if yes tem Past its below, if any other issue then show me you code
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