Pick Contact | Android Studio | Java

 Implement Contact Pick feature in and Android App

To allow the user to pick a contact from the phone's contacts list, we can use contact intent. You will get all information of the contact e.g. Name, Phone Number(s), Address, Thumbnail, Email, etc. You can use get the specific information according to your requirement. To pick a contact we need to READ_CONTACTS permission.

Check for Kotlin

Video Tutorial:

Add permission in AndroidMenifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.blogspot.atifsoftwares.pickcontact">

    <!--Read contact permission-->
    <uses-permission android:name="android.permission.READ_CONTACTS"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.PickContact">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="10dp"
    tools:context=".MainActivity">

    <!--ImageView: Show contact thumbnail-->
    <ImageView
        android:id="@+id/thumbnailIv"
        android:layout_width="120dp"
        android:layout_height="120dp"
        android:src="@drawable/ic_person"
        android:layout_centerHorizontal="true"/>

    <!--TextView: Show contact info-->
    <TextView
        android:id="@+id/contactTv"
        android:layout_below="@id/thumbnailIv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

    <!--FloatingActionButton: Click to pick contact-->
    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/addFab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:src="@drawable/ic_person_add"
        android:layout_alignParentEnd="true"
        android:layout_margin="10dp"/>

</RelativeLayout>

MainActivity.java

package com.blogspot.atifsoftwares.pickcontact;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.material.floatingactionbutton.FloatingActionButton;

public class MainActivity extends AppCompatActivity {

    //UI Views
    private ImageView thumbnailIv;
    private TextView contactTv;
    private FloatingActionButton addFab;

    private static final int CONTACT_PERMISSION_CODE = 1;
    private static final int CONTACT_PICK_CODE = 2;

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

        //init UI Views
        thumbnailIv = findViewById(R.id.thumbnailIv);
        contactTv = findViewById(R.id.contactTv);
        addFab = findViewById(R.id.addFab);

        //handle click, to pick contact
        addFab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //first we need to check read contact permission
                if (checkContactPermission()){
                    //permission granted, pick contact
                    pickContactIntent();
                }
                else {
                    //permission not granted, request
                    requestContactPermission();
                }
            }
        });
    }

    private boolean checkContactPermission(){
        //check if contact permission was granted or not
        boolean result = ContextCompat.checkSelfPermission(
                this,
                Manifest.permission.READ_CONTACTS) == (PackageManager.PERMISSION_GRANTED
        );

        return result;  //true if permission granted, false if not
    }

    private void requestContactPermission(){
        //permissions to request
        String[] permission = {Manifest.permission.READ_CONTACTS};

        ActivityCompat.requestPermissions(this, permission, CONTACT_PERMISSION_CODE);
    }

    private void pickContactIntent(){
        //intent to pick contact
        Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
        startActivityForResult(intent, CONTACT_PICK_CODE);
    }


    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        //handle permission request result
        if (requestCode == CONTACT_PERMISSION_CODE){
            if (grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
                //permission granted, can pick contact now
                pickContactIntent();
            }
            else {
                //permission denied
                Toast.makeText(this, "Permission denied...", Toast.LENGTH_SHORT).show();
            }
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        //handle intent results
        if (resultCode == RESULT_OK){
            //calls when user click a contact from list

            if (requestCode == CONTACT_PICK_CODE){
                contactTv.setText("");

                Cursor cursor1, cursor2;

                //get data from intent
                Uri uri = data.getData();

                cursor1 = getContentResolver().query(uri, null, null, null, null);

                if (cursor1.moveToFirst()){
                    //get contact details
                    String contactId = cursor1.getString(cursor1.getColumnIndex(ContactsContract.Contacts._ID));
                    String contactName = cursor1.getString(cursor1.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                    String contactThumnail = cursor1.getString(cursor1.getColumnIndex(ContactsContract.Contacts.PHOTO_THUMBNAIL_URI));
                    String idResults = cursor1.getString(cursor1.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));
                    int idResultHold = Integer.parseInt(idResults);

                    contactTv.append("ID: "+contactId);
                    contactTv.append("\nName: "+contactName);

                    if (idResultHold == 1){
                        cursor2 = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                                null,
                                ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+contactId,
                                null,
                                null
                        );
                        //a contact may have multiple phone numbers
                        while (cursor2.moveToNext()){
                            //get phone number
                            String contactNumber = cursor2.getString(cursor2.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                            //set details

                            contactTv.append("\nPhone: "+contactNumber);
                            //before setting image, check if have or not
                            if (contactThumnail != null){
                                thumbnailIv.setImageURI(Uri.parse(contactThumnail));
                            }
                            else {
                                thumbnailIv.setImageResource(R.drawable.ic_person);
                            }
                        }
                        cursor2.close();
                    }
                    cursor1.close();
                }
            }

        }
        else {
            //calls when user click back button | don't pick contact
        }
    }
}

That's it, tun project and check, here are some screenshots...