Create an application for demonstration of Explicitly Starting New Activity using Intent

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="wrap_content"

    tools:context=".MainActivity" >

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_alignParentRight="true"

        android:layout_below="@+id/textView1"

        android:layout_marginTop="111dp"

        android:text="@string/b1" />

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="50dp"

        android:text="@string/t1"

        android:textAppearance="?android:attr/textAppearanceLarge" />

</RelativeLayout>

Activity_Main2.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"

    tools:context=".MainActivity2" >

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="83dp"

        android:text="@string/t2"

        android:textAppearance="?android:attr/textAppearanceLarge" />

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_alignParentRight="true"

        android:layout_below="@+id/textView1"

        android:layout_marginTop="71dp"

        android:text="@string/b2" />

</RelativeLayout>

MainActivity.java

package com.example.prac10;

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener{

    @Override

     protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

       

       Button  b1 = (Button )findViewById(R.id.button1);

       b1.setOnClickListener(this);

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.activity_main, menu);

 

        return true;

    }

            @Override

            public void onClick(View arg0) {

                        Intent i = new Intent(getApplicationContext(),MainActivity2.class);

                        i.putExtra("value1","Cick Here To Call 2nd Activity");

                        i.putExtra("value2","Chaitu");

                        startActivity(i);

                       

            }

   

}

MainActivity2.java

package com.example.prac10;

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity2 extends Activity implements OnClickListener{

            @Override

            protected void onCreate(Bundle bundel) {

                        super.onCreate(bundel);

                        setContentView(R.layout.activity_main_activity2);              

                        Bundle extra = getIntent().getExtras();

                        String val1 =extra.getString("value1");

                        String val2 =extra.getString("value2");

                       

                       

            Toast.makeText(getApplicationContext(), val1+" "+val2,Toast.LENGTH_LONG).show();

                        Button b2 = (Button)findViewById(R.id.button1);

                        b2.setOnClickListener(this);

            }

            @Override

            public boolean onCreateOptionsMenu(Menu menu) {

                        getMenuInflater().inflate(R.menu.activity_main_activity2, menu);

                        return true;

            }

            @Override

            public void onClick(View arg0) {

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

                        startActivity(i);

            }

}