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Here is source code of the Program to Pick Contacts Using Intent in Andorid. The program is successfully compiled and run on a Windows system using Eclipse Ide. The program output is also shown below.

MainActivity.java

package com.example.pickcontactsusingintents;
 
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
 
public class MainActivity extends Activity {
 
    private static int PICK_CONTACT = 0;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button pick = (Button) findViewById(R.id.butpick);
        pick.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                pickContact();
            }
        });
    }
 
    private void pickContact() {
        Intent intent = new Intent(Intent.ACTION_PICK,
                ContactsContract.Contacts.CONTENT_URI);
        startActivityForResult(intent, PICK_CONTACT);
    }
 
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        TextView resultTextView = (TextView) findViewById(R.id.result);
        if ((requestCode == PICK_CONTACT) && (resultCode == RESULT_OK)) {
            resultTextView.setText(data.getData().toString());
        }
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
}

Activity_main.xml

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >
 
    <TextView
        android:id="@+id/result"
        android:layout_width="fill_parent"
        android:layout_height="60dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:text="@string/hello_world" />
 
    <Button
        android:id="@+id/butpick"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="39dp"
        android:text="Pick Contact" />
 
</RelativeLayout>

AndoridManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.pickcontactsusingintents"
    android:versionCode="1"
    android:versionName="1.0" >
 
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
 
    <uses-permission android:name="android.permission.READ_CONTACTS" />
 
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.pickcontactsusingintents.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>

Java Android Program to Pick Contacts Using Intent