Happic

Since 2021 - 07

Contribution 45%

This is a team that participated in the 30th Sopt app jam. This is a platform where you can write your daily diary in a simple card format and save rewards, photos, etc. There are also elements that develop characters, such as the moon and clouds. I was in charge of Android development. There has been a lot of development, but it has not been released.

Weathy

Since 2021 - 01

Contribution 40%

This is a project carried out in charge of Android development at the 27th SOPT App Jam. Basically, it is a service that provides the weather, records outfits and emotions for each weather, and allows you to receive notifications about similar weather. Demonstration video https://www.youtube.com/watch?v=GiWxNUl2zTo This page was organized by a designer who worked on the project together. https://leeyeseul.tistory.com/43#:~:text=%EC%9B%A8%EB%94%94%EB%8A%94%2C%20%EA%B7%B8%EB%9F%B0%20%EC%88%98%EC%B9%98%ED%99%94%EB%90%9C,%EC%B2%B4%EA%B0%90%20%EC%A0%95%EB%B3%B4%EB%A5%BC%20%EB%8F%8C%EB%A0%A4%EC%A4%80%EB%8B%A4

Fundito

Since 2019 - 12

Contribution 33%

This is an application called Fundito that was developed while participating in the 25th class of SOPT, a university IT start-up club, and holding App Jam, a mid-term camp hackathon. Fundito was about investing in the restaurant you wanted and doing something, but I don't remember the plan. I remember using Coroutine, which I was studying, to my heart's content and beautifully implementing architecture and asynchrony. We also developed a CustomView for various investments. We also developed a View that turns the investment dial on the attached image and a Custom View that displays a graph showing how much has been invested. At this time, MotionLayout was used on the restaurant details screen to express a Collapsing effect that gives a CoordinatorLayout-like effect. This was my first time using MotionLayout, an advanced version of ConstraintLayout, and it was really fun. We have also implemented a function that allows you to make an investment by obtaining the SSID depending on the current WIFI connection status and checking whether the restaurant is using the WIFI.

BEATFLO

Since 2019 - 10

Contribution 70%

Bitflow is an application developed by Choreography Factory, Inc. Bitflow is a revenue-generating platform for non-mainstream dancers, influencers, and musicians. During the development process, we had a lot of trouble handling video-related tasks. Basically, most of the functions of AAC were used and developed with an MVVM structure. Currently, View Binding is supported starting from Android Gradle 3.6, but since we developed with 3.5, we structured the architecture using data binding as much as possible. We were able to easily handle background asynchronous tasks by actively utilizing WorkManager (RxWorker) in processing such as video uploads. As an aside, Kotlin is really easy to use and is the most complete language.

Pick Place

Since 2019 - 08

Contribution 25%

This is an entry in the Seoul City App Contest. I was eliminated from the preliminaries. I worked quite hard on it. I created a custom MapFragment using the Google maps API and captured the location using the Reverse geocoding API. It was a long time ago, so I don't remember what features were included, but it was a quite fun project to participate in.

Favorite

Since 2019 - 06

Contribution 100%

This was our first outsourced development, and we did it because they preferred a diary-like design. I created the server myself with Django DRF.

SOVS2

Since 2019 - 05

Contribution 100%

Following SOVS, SOVS2 was also released, and unlike SOVS, which was distributed for a fee, it was equipped with the function of selling packs through IAP. In addition, it was released not only on the Play Store but also on the Galaxy Store and One Store, abstracting the IAP process. I wasn't very good at developing camera performance, but managing the common modules of SOVS and SOVS2 in one project and building and distributing them as application modules was quite a new experience. I also liked the abstraction architecture used in the process of attaching multiple IAPs. The company is now bankrupt.

SOVS

Since 2019 - 03

Contribution 100%

This is the first Android app I developed properly. Android is the first platform on which I developed an actual product at my company, and I studied it for about 4 months at the time. Because it was a camera utility app, there wasn't much to worry about architecturally, but I studied a lot by carefully applying the first architectural methodologies. I should have saved the camera, post-processed the image, and saved it in the gallery, but I had a lot of trouble because I had no understanding of the concept of real-time filtering using image processing, and the result was not good. I seriously considered learning OpenGL on my own, but I was able to implement some of the functions myself using Android's RenderScript API. C99 is an amazing language. When I was at the company, I developed SOVS 1, 2, Android and iOS alone and managed 4 of them.

GIST - Free Friday!

Since 2019 - 01

Contribution 100%

Around 2019, I learned Android development technology and developed an application at GIST, the school I attend, to make it easy to schedule and share class information and to enable pre-registration to prevent course registration wars. At that time, many students used it. I'm still not good at it, but since I couldn't develop any more, I had no idea how to do full-stack development. So I borrowed a lot from Firebase, and because I wanted to create a REST API, I studied DRF separately and built a server. This is an application that contains a lot of memories. I did all the design, starting with the logo design, so it's just hideous.