Whatsapp send in Android

 àWhatsapp Message send:-

Xml code:-

<?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout 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"

    tools:context=".MainActivity">



  <Button

      android:layout_width="match_parent"

      android:layout_height="wrap_content"

      android:id="@+id/btn"

      android:text="click"

      android:onClick="open1"/>



</androidx.constraintlayout.widget.ConstraintLayout>

 

Java code:-

package com.example.message;



import androidx.appcompat.app.AppCompatActivity;



import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.net.Uri;

import android.os.Bundle;

import android.telephony.PhoneNumberUtils;

import android.util.Log;

import android.view.View;



public class MainActivity extends AppCompatActivity {



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);



    }

    public static void open(Context context, String number, String message)

    {

        try {

            number = number.replace("","").replace("+","");

            Intent intent = new Intent("android.intent.action.MAIN");

            intent.setType("text/plan");

            intent.putExtra(Intent.EXTRA_TEXT,message);

            intent.setComponent(new ComponentName("com.whatsapp","com.whatsapp.Conversation"));

            intent.putExtra("jid", PhoneNumberUtils.stripSeparators(number)+"@s.whatsapp.net");

            context.startActivities(new Intent[]{intent});



        } catch (Exception e) {



        }



    }

    public  void openWhatsAppConversationUsingUri(Context context,String number,String message)

    {

        Uri uri = Uri.parse("https://api.whatsapp.com/send?phone="+number+"&text="+message);

        Intent intent = new Intent(Intent.ACTION_VIEW,uri);

        context.startActivities(new Intent[]{intent});

    }



    public void open1(View view) {

        open(MainActivity.this,"9315146427","hello niranjan");

    }

}