How to switch between Activities in Android Example

MainActivity.java

package kantapp.switchbetweenactivitiesinandroid;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity
{

    EditText inputName;
    EditText inputEmail;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        inputName = (EditText) findViewById(R.id.name);
        inputEmail = (EditText) findViewById(R.id.email);
        Button button = (Button) findViewById(R.id.send);


        button.setOnClickListener(new View.OnClickListener() {

            public void onClick(View view) {

                Intent nextScreen = new Intent(getApplicationContext(), Activity2.class);


                nextScreen.putExtra("name", inputName.getText().toString());
                nextScreen.putExtra("email", inputEmail.getText().toString());

                Log.e("kantapp", inputName.getText()+"."+ inputEmail.getText());

                startActivity(nextScreen);

            }
        });
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="kantapp.switchbetweenactivitiesinandroid.MainActivity">

    <TextView android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Name: "/>
    <EditText android:id="@+id/name"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="10dip"/>
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Email: "
        />
    <EditText android:id="@+id/email"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="10dip"/>
    <Button android:id="@+id/send"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Send to Next Screen"
        android:layout_marginTop="15dip"/>
</LinearLayout>

Activity2.java

package kantapp.switchbetweenactivitiesinandroid;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class Activity2 extends AppCompatActivity
{

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

        TextView txtName = (TextView) findViewById(R.id.txtName);
        TextView txtEmail = (TextView) findViewById(R.id.txtEmail);


        Intent i = getIntent();

        String name = i.getStringExtra("name");
        String email = i.getStringExtra("email");
        Log.e("Second Screen", name + "." + email);


        txtName.setText(name);
        txtEmail.setText(email);




        Button button=(Button)findViewById(R.id.exit);
        button.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                startActivity(new Intent(getApplicationContext(),MainActivity.class));
                finish();
            }
        });

    }

}

activity_2.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="kantapp.switchbetweenactivitiesinandroid.Activity2">

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dip"
        android:gravity="center"
        android:text="Your Detail"
        android:textSize="25dip" />

    <TextView
        android:id="@+id/txtName"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dip"
        android:textSize="18dip"
        android:text="name" />

    <TextView
        android:id="@+id/txtEmail"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dip"
        android:textSize="18dip"
        android:text="email" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Back"
        android:id="@+id/exit" />

</LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="kantapp.switchbetweenactivitiesinandroid">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".Activity2"></activity>
    </application>

</manifest>

Download Project :https://userscloud.com/q5fj29q7tftr

Only Source Code:https://userscloud.com/hgayo0xhi221

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