Refactored to Class Based Component.

AlbumList.js

import React, { Component } from 'react';
import { Text, View } from 'react-native';

class AlbumList extends Component {
  render() {
    return (
      <View>
        <Text> AlbumList!!! </Text>
      </View>
    );
  }
}

export default AlbumList;

Class based Componets are more complex and we write more code.
Lot more capability.
Used for fetching data and they're easier to use to write large components and easier to organize large amount of code with them cuz we get Class based struture and add many helper methods with them.

ES6 Classes extends components.
Render method is must return some amount of JSX.

Benefits of class based components, Unique advantage over functional components..
called LifeCycle Methods
In functional some data goes in and JSX comes out. but in ClassBased: which have alot more knowledge k kab render hona hai kab remove hona hai.. and notification can be received.
One of the LC method is componentWillMount()