How to save contacts to the phone contacts in android

We can easily save the contacts to the phone contacts without having any database of own . The code is very simple.

import android.app.Activity;
import android.app.AlertDialog;
import android.content.ComponentName;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Contacts;
import android.provider.Contacts.People;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {
 protected static final int PICK_CONTACT = 0;
 EditText edt1,edt2;
 Button btn;
 String s1,s2;

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

  edt1=(EditText)findViewById(R.id.editText1);
  edt2=(EditText)findViewById(R.id.editText2);
  btn=(Button)findViewById(R.id.button1);
  
  btn.setOnClickListener(new OnClickListener() {
   
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    s1=edt1.getText().toString();
    s2=edt2.getText().toString();
     ContentValues values = new ContentValues();
           values.put(People.NUMBER, s2);
           values.put(People.TYPE, Phone.TYPE_CUSTOM);
           values.put(People.LABEL, s1);
           values.put(People.NAME, s1);
           Uri dataUri = getContentResolver().insert(People.CONTENT_URI, values);
           Uri updateUri = Uri.withAppendedPath(dataUri, People.Phones.CONTENT_DIRECTORY);
           
           values.clear();
           values.put(People.Phones.TYPE, People.TYPE_MOBILE);
           values.put(People.NUMBER, s2);
           updateUri = getContentResolver().insert(updateUri, values);
           
           
           Intent i = new Intent(Intent.ACTION_INSERT_OR_EDIT);
                 i.setType(ContactsContract.Contacts.CONTENT_ITEM_TYPE);   

                 startActivity(i);
        
   }
  });
 }
 
 
}

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="com.example.phonecontacts.MainActivity$PlaceholderFragment" >



    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_alignParentTop="true"

        android:layout_marginLeft="33dp"

        android:layout_marginTop="46dp"

        android:text="Name" />



    <EditText

        android:id="@+id/editText1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignBaseline="@+id/textView1"

        android:layout_alignBottom="@+id/textView1"

        android:layout_marginLeft="39dp"

        android:layout_toRightOf="@+id/textView1"

        android:ems="10" >



        <requestFocus />

    </EditText>



    <TextView

        android:id="@+id/textView2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_below="@+id/editText1"

        android:layout_marginTop="48dp"

        android:layout_toLeftOf="@+id/editText1"

        android:text="Phone No" />



    <EditText

        android:id="@+id/editText2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/editText1"

        android:layout_alignTop="@+id/textView2"

        android:inputType="number"

        android:ems="10" />



    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_below="@+id/editText2"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="82dp"

        android:text="Submit" />



</RelativeLayout>

On clicking the submit button the contacts will be saved to the phone contacts.