22 Program to implement Explicit Intent in Android Studio

AndroidManifest.xml:

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

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.explicitintent">



    <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/AppTheme">

        <activity android:name=".activity_2"></activity>

        <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>

MainActivity.java: 

package com.example.explicitintent;



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 {



    Button btn;



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);



        btn = findViewById(R.id.button);

        btn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                callSecondActivity(view);

            }

        });

    }



    public void callSecondActivity(View view) {

        Intent i = new Intent(getApplicationContext(), activity_2.class);

        i.putExtra("Value1", "Android by CodingAtharva");

        i.putExtra("Value2", "Atharva Agrawal");

        startActivity(i);

    }

}

activity_main.xml:

<?xml version= "1.0" encoding= "utf-8" ?>
<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:padding="20dp"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/tv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="First Activity"
        android:textAlignment="center"
        android:textSize="40dp" />


    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv"
        android:layout_marginTop="174dp"
        android:text="Call 2nd Activity" />
</RelativeLayout>

activity_2.java:

package com.example.explicitintent;

import androidx.appcompat.app.AppCompatActivity;

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

public class activity_2 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_2);

        Bundle extras = getIntent().getExtras();
        String value1 = extras.getString("Value1");
        String value2 = extras.getString("Value2");

        Toast.makeText(getApplicationContext(),"Values are:\n First Value: "+value1+"\n Second Value:"+value2 , Toast.LENGTH_LONG).show();

    }

    public void callFirstActivity(View view){
        Intent i = new Intent(getApplicationContext(), MainActivity.class);
        startActivity(i);
    }
}

}

activity_2.xml:

<?xml version= "1.0" encoding= "utf-8" ?>
<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:padding="20dp"
    tools:context=".activity_2">

    <TextView
        android:id="@+id/tv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Second Activity"
        android:textAlignment="center"
        android:textSize="40dp" />


    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/tv"
        android:layout_marginTop="174dp"
        android:onClick="callFirstActivity"
        android:text="Call 1st Activity" />
</RelativeLayout>

Output:

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