Phone ContactList display in ListView

Your MainActivity.java like this;

package com.example.contactdisplay;

import java.util.ArrayList;

import android.os.Bundle;
import android.provider.ContactsContract;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;

public class MainActivity extends Activity {


EditText edt_text;
Button btn_add;
Context context = this;
ListView listview1;


ArrayAdapter<String> adapter;
ArrayList<String> arraylist;
ArrayList<String> searchedName;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

edt_text = (EditText) findViewById(R.id.edt_search);
listview1 = (ListView) findViewById(R.id.list);

arraylist = new ArrayList<String>();
searchedName = new ArrayList<String>();

ContentResolver cr = getContentResolver();
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI, null,
null, null, null);

if (cur.getCount() > 0) {
while (cur.moveToNext()) {

String name = cur
.getString(cur
.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
Log.i("Name", name);

arraylist.add(name);

// For get Email address

/*
* Cursor
* emailcur=cr.query(ContactsContract.CommonDataKinds.Email
* .CONTENT_URI
* ,null,ContactsContract.CommonDataKinds.Email.CONTACT_ID
* +"="+id, null, null);
*
* while (emailcur.moveToNext()) {
*
* // This would allow you get several email addresses String
* emailAddress = emailcur .getString(emailcur
* .getColumnIndex(ContactsContract
* .CommonDataKinds.Email.DATA));
*
* Log.e("email==>", emailAddress); arraylist.add(emailAddress);
* // emaildata
* +=" "+emailAddress+" "+"--------------------------------------"
* ; }
*/

}

Log.i("Total Contacts", "" + arraylist.size());

adapter = new ArrayAdapter<String>(context,
android.R.layout.simple_list_item_1, arraylist);

listview1.setAdapter(adapter);

}

// You can use phone number also to display in ListView through below
// code

/*
* cursor.moveToFirst(); do {
*
* String phoneNumber = cursor.getString(phoneNumberIdx);
*
* Log.i("Name is........", phoneNumber); arraylist.add(phoneNumber);
*
* } while (cursor.moveToNext());
*/

edt_text.addTextChangedListener(new TextWatcher() {

@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
// TODO Auto-generated method stub

}

@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub

}

@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
Log.i("Text changed", s.toString());
getFilterContacts(s);
}
});
}

public void getFilterContacts(CharSequence nameKey) {
if (nameKey.toString().length() == 0) {
adapter = new ArrayAdapter<String>(context,
android.R.layout.simple_list_item_1, arraylist);

listview1.setAdapter(adapter);

return;
}

searchedName = new ArrayList<String>();
for (int i = 0; i < arraylist.size(); i++) {
String contactName = arraylist.get(i);

searchedName.add(contactName);

}
// searchedName;
adapter = new ArrayAdapter<String>(context,
android.R.layout.simple_list_item_1, searchedName);

listview1.setAdapter(adapter);
}


}

Your activity_main like this;

<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:orientation="vertical"
    tools:context=".MainActivity" >

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <EditText
            android:id="@+id/edt_search"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ems="9"
            android:hint="search here.." />

        <Button
            android:id="@+id/btn_search"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="ADD" />
    </LinearLayout>

    <ListView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="fill_parent" >
    </ListView>


</LinearLayout>

App like this;