how to sent one intent to other navigate the page usig android app (android project work with source code)

how to sent one intent to other navigate the page usig android app 

xml source code 

<?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"
    tools:context=".child">

    <Button
        android:id="@+id/button2"
        android:layout_width="402dp"
        android:layout_height="53dp"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentBottom="true"
        android:text="Back"
        android:background="#47b04b"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.074"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.935"
        tools:ignore="MissingConstraints" />

    <Button
        android:id="@+id/search"
        android:layout_width="408dp"
        android:layout_height="261dp"
        android:layout_above="@+id/button2"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="46dp"
        android:layout_marginEnd="0dp"
        android:layout_marginRight="0dp"
        android:layout_marginBottom="371dp"
        android:background="@drawable/search"
        android:text=""
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.121"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.278" />

    <Button
        android:id="@+id/sms"
        android:layout_width="390dp"
        android:layout_height="242dp"
        android:layout_above="@+id/button2"
        android:layout_alignParentStart="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_marginStart="0dp"

        android:layout_marginLeft="0dp"
        android:layout_marginTop="176dp"
        android:layout_marginEnd="21dp"
        android:layout_marginRight="21dp"
        android:layout_marginBottom="60dp"
        android:background="@drawable/sms"
        android:text=""
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent" />


</RelativeLayout>

Main activity source code

package sherazkhan801.blogspot.test;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btn=(Button)findViewById(R.id.btn1);
        Button btn2=(Button)findViewById(R.id.button2);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent=new  Intent(view.getContext(),child.class);
                startActivity(intent);
            }
        });
    }
}



intent activity
package sherazkhan801.blogspot.test;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import java.security.AccessController;

public class child extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_child);
        final Button serch=(Button)findViewById(R.id.search);
        Button smsto=(Button)findViewById(R.id.sms);
        Button btn2=(Button)findViewById(R.id.button2);
     btn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent=new  Intent(view.getContext(),MainActivity.class);
                startActivity(intent);
            }
        });
     serch.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
             Uri webpage=Uri.parse("https://www.google.com");
             Intent search=new Intent(Intent.ACTION_VIEW,webpage);
             if (search.resolveActivity(getPackageManager())!=null)
              startActivity(search);

         }
     });
        smsto.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Uri smsto=Uri.parse("smsto:03472943510");
                Intent sms=new Intent(Intent.ACTION_SENDTO,smsto);
                sms.putExtra("sms_body","Hi this is me sheraz khan");
                if (sms.resolveActivity(getPackageManager())!=null)
                    startActivity(sms);

            }
        });

    }
}