Relative Layout Code Review

relative_layout.xml

<?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"
    android:padding="8dp"
    tools:context=".RelativeLayoutExampleActivity">

    <TextView android:id="@+id/label"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:text="Email" />

    <EditText android:id="@+id/inputEmail"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/label" />

    <Button android:id="@+id/login"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/inputEmail"
        android:layout_alignParentLeft="true"
        android:layout_marginRight="10px"
        android:text="Login" />

    <Button android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/cancel"
        android:layout_toRightOf="@id/login"
        android:layout_alignTop="@id/login"
        android:text="Cancel" />

    <Button android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/register"
        android:layout_alignParentBottom="true"
        android:text="Register new Account"
        android:layout_centerHorizontal="true"/>


</RelativeLayout>

RelativeLayoutActivity.java

package com.example.arslan.bs_app;

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

public class RelativeLayoutExampleActivity extends AppCompatActivity implements View.OnClickListener {

    //views fields
    private Button loginButton , registerButton , cancelButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_linear_layout_example);

        loginButton = findViewById(R.id.login);
        registerButton = findViewById(R.id.register);
        cancelButton = findViewById(R.id.cancel);

        loginButton.setOnClickListener(this);
        registerButton.setOnClickListener(this);
        cancelButton.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {

        switch (view.getId()){

            case R.id.login:
                Toast.makeText(this , "No Logic for login",Toast.LENGTH_SHORT).show();
                break;
            case R.id.cancel:
                finish();
                break;
            case R.id.register:
                Toast.makeText(this , "No Logic for register",Toast.LENGTH_SHORT).show();
                break;
            default:
                break;
        }
    }
}