Set default number/emails in a new text message/email sent via unity

Hello all,

Here the code I'm using to send message :

 using UnityEngine;
 using System.Collections;
 public class ShareApp : MonoBehaviour {
  
 string subject = "eg. subject";
 string body = "eg. body text";
 string numbers = "0600000000,060000001";
 string emails = "emailOne, emailTwo";
  
 public void shareText()
     {
         //execute the below lines if being run on a Android device
         #if UNITY_ANDROID
         //Reference of AndroidJavaClass class for intent
         AndroidJavaClass intentClass = new AndroidJavaClass ("android.content.Intent");
         //Reference of AndroidJavaObject class for intent
         AndroidJavaObject intentObject = new AndroidJavaObject ("android.content.Intent");
         //call setAction method of the Intent object created
         intentObject.Call<AndroidJavaObject>("setAction", intentClass.GetStatic<string>("ACTION_SEND"));
         //set the type of sharing that is happening
         intentObject.Call<AndroidJavaObject>("setType", "text/plain");
         //add data to be passed to the other activity i.e., the data to be sent
         intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_SUBJECT"), subject);
         intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TEXT"), body);
         //get the current activity
         AndroidJavaClass unity = new AndroidJavaClass ("com.unity3d.player.UnityPlayer");
         AndroidJavaObject currentActivity = unity.GetStatic<AndroidJavaObject>("currentActivity");
         //start the activity by sending the intent data
         currentActivity.Call ("startActivity", intentObject);
         #endif
      
     }
  
 }

My problem right now is ... I'm really not an android developer :) , I really have any idea t set the numbers in text message or emails contacts in email ...

I'm am pretty lost ! Any help will be great Tks alex