Day 2 of Challenge

//Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="day2.rungene.com.puttextra2" >

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

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

</manifest>

//Activity_One.Java
package day2.rungene.com.puttextra2;

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

public class Activity_One extends AppCompatActivity {

    private EditText etEmail;
    private EditText etPass;
    private Button btnA;

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

        etEmail = (EditText) findViewById(R.id.etEmail);
        etPass = (EditText) findViewById(R.id.etPass);

        btnA = (Button) findViewById(R.id.btnA);

        btnA.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //validation
                String newEmail = etEmail.getText().toString();
                String newPass = etPass.getText().toString();

                boolean samr = validEmail(newEmail);

                if ((newEmail.equals("")|| newEmail.equals(null))
                        || newPass.equals("") || newPass.equals(null)|| samr==false){
                    Toast.makeText(getApplicationContext(),"Acces Denied" + newEmail,Toast.LENGTH_LONG).show();
                }else {
                    if (newEmail.equals("samrr@yahoo.com") && newPass.equals("123")){

                        Intent intent = new Intent(Activity_One.this, Activity_Two.class);
                        intent.putExtra("email", newEmail);
                        intent.putExtra("pass", newPass);
                        Activity_One.this.startActivity(intent);
                    }else {
                        Toast.makeText(getApplication(),"Emai or Password Incorrect", Toast.LENGTH_SHORT).show();
                    }
                }
            }


        });
    }
    private boolean validEmail(String email) {
        if (email.contains("@")){
            return true;

        }else {
            return false;
        }
    }
}

//Activity_Two.Java
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

public class Activity_Two extends AppCompatActivity {

    private TextView tvEmail;
    private TextView tvPass;

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

        tvEmail = (TextView) findViewById(R.id.tvEmail);
        tvPass = (TextView) findViewById(R.id.tvPass);

        Intent getIntA = getIntent();
        String getEmail = getIntA.getStringExtra("email");
        String getPass = getIntA.getStringExtra("pass");

        String newEmail = tvEmail.getText().toString();
        String newPass  = tvPass.getText().toString();

        tvEmail.setText(newEmail + " " + getEmail);
        tvPass.setText(newPass + " "+getPass);
    }

}

//activity_one.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:id="@+id/activity__one"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context="day2.rungene.com.puttextra2.Activity_One">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="LOGIN"
        android:gravity="center_horizontal"
        android:textSize="25dp"
        android:textStyle="bold"
        android:layout_marginTop="15dp"
        android:id="@+id/textView"
        />
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/etEmail"
        android:hint="Enter ur email"
        android:padding="10dp"
        android:layout_marginTop="10dp"
        android:backgroundTint="@color/colorAccent"
        android:layout_below="@+id/textView"
        />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/etPass"
        android:hint="Enter ur pass"
        android:padding="10dp"
        android:layout_marginTop="10dp"
        android:backgroundTint="@color/colorAccent"
        android:layout_below="@+id/etEmail"
        />
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/btnA"
        android:text="LOGIN"
        android:layout_marginTop="10dp"
        android:background="@color/colorPrimaryDark"
        android:textColor="@color/white"
        android:textStyle="bold"
        android:layout_below="@+id/etPass"
        />

</RelativeLayout>

//activity_two.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:tools="http://schemas.android.com/tools"
    android:paddingBottom="16dp"
    android:paddingLeft="64dp"
    android:paddingRight="64dp"
    android:paddingTop="16dp"
    tools:context="day2.rungene.com.puttextra2.Activity_Two">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tvWelcom"
        android:layout_marginTop="15dp"
        android:text="Welcome Bro"
        android:textStyle="bold"
        android:textSize="20dp"
        />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tvEmail"
        android:layout_marginTop="15dp"
        android:text="Ur Email:"
        android:textStyle="bold"
        android:textSize="20dp"
        android:layout_below="@+id/tvWelcom"
        />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/tvPass"
        android:layout_marginTop="10dp"
        android:text="Ur Password:"
        android:textStyle="bold"
        android:textSize="20dp"
        android:layout_below="@+id/tvEmail"
        />


</RelativeLayout>