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[Intermediate] Creating a Coin Price Monitoring App (Android Kotlin)

Are you tired of making the same old TODO list / CRUD example apps every time? This is a course for hands-on practice with various technologies, building a Coin Price Monitoring App in a fun way.

(4.9) 29 reviews

390 learners

  • bokchi
android
안드로이드
안드로이드앱
코틀린
앱개발
Kotlin
Android

Reviews from Early Learners

What you will learn!

  • Android Splash API

  • Navigation

  • ViewModel

  • LiveData

  • Retrofit

  • DataStore

  • Lottie

  • Room

  • WorkManager

  • Foreground Service

  • BootReceiver

  • ViewBinding

Android Kotlin App Development, Now in Practice 📲

Learning through practice
Implementing Android features!

Do you want to create a project with the skills necessary to implement Android Kotlin features? (ViewModel, WorkManager, Retrofit, Room, Coroutine...)

A simple To-Do app, instead of the obvious CRUD examples!
Let's practice various techniques by creating a fun coin price monitoring app example.

💰 Implement your own coin price monitoring app

Implementing an intro screen using Splash Screen API & Lottie

Implement distinctive screens using Navigation, Lottie, and DataStore.

Detecting DB changes using Room and Coroutine Flow

Detects real-time changes in [coins of interest / coins of no interest] data stored in the local DB and displays them to the user.

Collecting Coin of Interest Information in the Background with WorkManager

It calls the API in the background to save the price information of coins that the user is interested in, and compares the current data with previously saved data to show whether the coin price has risen or fallen.

Creating an Always Floating Notification with Foreground Service

Let's implement a UI that always notifies users of coin price fluctuation information in the form of notifications.

This course is most helpful for these people 🙋‍♀️

  • Anyone who wants to implement various functions of commercial apps that we actually use
  • Anyone who wants to work on a project using Retrofit, Room, WorkManager, Foreground Service, BootReceiver, etc.
  • For those of you who are tired of seeing basic app creation examples every time.

This class won't help these people 🙅‍♂️

  • For those new to Android app development
  • For those who can't find what they don't know through search
  • For those who want to apply the strict design pattern M(Model) - V(View) - X(Whatever) (Most of them are in the live coding format, so they do not develop strictly following a specific design pattern.)

Just the essentials, quickly ,
More vivid live

💡 200% practical lectures to gain hands-on experience

This is a live coding-centered lecture with a focus on practice. We boldly omit repetitive parts and quickly proceed with technology implementation. Rather than covering theories in detail about the technologies used, we only mention the core outline of the general technologies and then proceed with the class focusing on 'how to use them directly'. Simple layout (XML) coding and adding dependencies are also saved through copy/paste.

If you are looking for a lecture that explains the theory in more detail, please refer to the lecture below.

Section 1 - Creating the Intro Screen

Create an intro screen to introduce your app to users using Android Splash Screen / Lottie / Jetpack Navigation.

Section 2 - Preparing to move to the main screen

Use DataStore/Room to store user information in a local DB.

Section 3 - Customizing the Main Screen (List of Coins of Interest)

Use BottomNavigation / Room / LiveData / Fragment / Coroutine / ViewModel to configure the main screen that the user sees. Users can save and cancel desired coin information.

Section 4 - Customizing the Main Screen (Prices of Coins of Interest)

We use WorkManager / Retrofit / Room to store the coin price information that the user is interested in to the local DB. We compare the stored data with the current data and tell you whether the coin price has gone up or down.

Section 5 - Service/Receiver Application

We use Foreground Service and Receiver to provide users with coin price information in the form of notifications. We also use BootReceiver to detect events when the device is restarted.


Created this course
Knowledge sharer is 👨‍💻

Gaebogchi developer

Since founding the startup in 2015, we have carried out various development projects.
I am currently developing Android apps for a fintech company.


Q&A 💬

Q. Is player knowledge required?

Basic knowledge of Kotlin and Android is required.
If you encounter an error or something you don't know, it would be best to take this course before working on a personal project if you are able to solve the problem and understand what you don't know by Googling.

Q. This is my first time developing an Android app. Is it okay if I give it a try?

If you are a beginner, you may find it difficult. We are currently creating lectures based on difficulty level, so please refer to them.

  1. [Introduction] Kotlin Grammar for Android
  2. [Beginner's Guide] Learn Android Kotlin while creating 8 apps
  3. [Intermediate] Kind JETPACK Introduction <Part 1>
  4. [Intermediate] Creating a Coin Price Monitoring App
  5. [Intermediate] Introduction to Kind JETPACK <Part 2>

Q. Do you provide the source code and images used in the lecture?

At the end of each section, we provide you with a completed code. If you encounter any errors, compare it to the completed code.
(You can download the source code by clicking on the cloud shape on the right side of the lecture video.)

Q. In the case of XML coding, there are cases where copy/paste is done in the lecture, so I would like to have a code that provides only this part.

Section 0. You can download it from Lesson 2 [Images/Layout Files Used in the Lecture].

Q. There are many online lectures that I cannot complete because I encountered errors before taking the class. Is this lecture different?

To help you complete the course, please leave a question in [Community] and we can help you. Please include the information below.

1) What part of the class are you taking?
2) What I tried
3) What error message appears?

Recommended for
these people

Who is this course right for?

  • Those who want to do Android practical projects

  • Those wanting to quickly try various technologies before personal project development

Need to know before starting?

  • Understanding Android / Kotlin syntax

  • Self-directed learning of unknown lecture content.

Hello
This is

6,270

Learners

379

Reviews

1,368

Answers

4.8

Rating

11

Courses

2015년 스타트업 창업을 계기로 다양한 개발 프로젝트를 진행하였습니다.

현재는 평범한 직장인 개발자입니다

Curriculum

All

49 lectures ∙ (5hr 20min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

29 reviews

4.9

29 reviews

  • soparifly9338님의 프로필 이미지
    soparifly9338

    Reviews 1

    Average Rating 5.0

    5

    31% enrolled

    • baekground님의 프로필 이미지
      baekground

      Reviews 4

      Average Rating 5.0

      5

      100% enrolled

      一人でググりながらAndroidの勉強をしていたのですが、개복치開発者さんの講義がとても役に立ちました。 勉強した概念を実際に使ってみたり、また、すべての概念について完璧に説明されているわけではなかったので、気になる部分は別途さらに調べてみる過程がかえってとても役に立つように思います。 良い講義、ありがとうございます!

      • bokchi
        Instructor

        レビューありがとうございます! 実践型の講座ですので、どうしても理論の説明は少なくなっていますが https://www.inflearn.com/course/%ED%8F%AC%ED%8A%B8%ED%8F%B4%EB%A6%AC%EC%98%A4-%EC%95%88%EB%93%8C%EB%A1%9C%EC%9D%B4%EB%93%9C-%EC%95%B5%EA%B0%9C%EB%B0%9C-%EC%9D%B4%EB%A1%A0 理論的な講座をご希望でしたら、そちらの講座も参考にしていただけると幸いです! ありがとうございます!

    • imdevelop님의 프로필 이미지
      imdevelop

      Reviews 12

      Average Rating 5.0

      5

      100% enrolled

      • bokchi
        Instructor

        受講評価ありがとうございます!

    • ilab2849님의 프로필 이미지
      ilab2849

      Reviews 2

      Average Rating 5.0

      5

      61% enrolled

      アプリ開発は初めてですが、大変参考になります!ありがとうございます、先生 :)

      • bokchi
        Instructor

        受講レビューありがとうございます!

    • pabeba3314님의 프로필 이미지
      pabeba3314

      Reviews 3

      Average Rating 5.0

      5

      100% enrolled

      とても面白い機能をたくさん知ることができました!

      • bokchi
        Instructor

        受講レビューありがとうございます!

    $51.70

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