Diep Nguyen

Just a guy who do stuffs

case study Featured

The Journey of A System

It has been a long time since my last blog, the world has seen lots of changes, including technology innovation, pandemic and especially the way we communicate with each other and with digital product. This post is brief to the journey for one of our product which we involved a

story Featured

Transforming a weird WordPress instance into a Ghost one

Hello 2017, hope everyone will have an interesting year ahead. It has been a long time since last post of us, due to several personal stuffs. So today, I would like to come back, and with a very first news about CodenTrick: We have transformed our WordPress instance into a

fcm

Integrate Firebase Cloud Messaging with NodeJS

Next post in our Firebase series, today I want to help you with the integration Firebase Cloud Messaging (FCM) with your backend server. A typical usecase, is you want to have your users register push notification with Firebase, and from backend, you can trigger push on specific event (like new

Implementing Firebase Cloud Messaging (FCM) into your iOS App

One problem with any mobile project which using push notification, is developers must handle both Google Cloud Messaging for Android and Apple Push Notification for iOS at their back-end. Using third-party solutions like Firebase Cloud Messaging (FCM) simplifies this process by making push notification work -as-a-service seamlessly between both Android

ios

Create Certificate for iOS Push Notification

For an iOS app, the push notification certification preparation always make me annoying. Not just because I have to prepare too many certifications, but also sometimes I did a step fail, and the certification does not work at all. But I only realize that when backend code does not work

Multiple Chat Integrations with Smooch

In e-commerce systems, support channel is a must. Especially in mobile era, where customers have various chat apps in their smartphones: Messenger, Viber, Line, etc. Smooch is a immediate platform, allow you to connect your users with support team by using any messaging app you prefer. Today, we want to

AWS Series: Create EC2 Instance

Begining with Amazon Web Services always start with Elastic Cloud Compute. This post will assume that you have already registered an account for AWS, and already logged into AWS Management Console. We are going to create EC2 instance for demonstration and give you an introduction about how EC2 works. The

aws

AWS Series: Amazon Web Services Overview

A few month ago, I have introduced with you about cloud computing. You know about three main forms of cloud computing, including IaaS, PaaS and Saas. You has been familiar with cloud provider like Amazon, Microsoft, RedHat and IBM. Today I want to give you an overview and introduction about

Part 4: Android RecyclerView: Grid

RecyclerView: Grid Using RecyclerView, we are free to use a predefined LayoutManager, or create our own manager to place and layout each item inside on screen. In this post, we want to talk about an alternative version of GridView on Android: RecyclerView: Grid. The result should look like this: [ To

RecyclerView Part 3: Android RecyclerView OnClick

Continue with our series about RecyclerView, we known about basic element of a RecyclerView. Today we are going to make our RecyclerView’s items clickable, which was a trivial task with ListView. However, if you are just moving to use RecyclerView, you will find it is so complicated to implement

recyclerview

RecyclerView Part 2: Android RecyclerView Adapter

This is the second post in our Android RecyclerView series. In previous post, you have find a very basic example about the RecyclerView in Android development. In this post, we will go deeper about one important element with RecyclerView: the Adapter. Please refer to the source code which has been

recyclerview

RecyclerView Part 1: Android RecyclerView Example

Today, we want to introduce to you the first post in our series about new shiny collection view in Android: RecyclerView. Android Developer page give us a definition: A flexible view for providing a limited window into a large data set. Several Terms * Adapter: A subclass of RecyclerView.Adapter responsible

android

What's New in Android 6.0 Marshmallow

Earlier this year Google unveiled its new version of Android  — code named Android M —  and like with Android Lollipop, we also got a developer preview. The Android M developer preview gave developers a clear timeline to test their apps, and an opportunity to explore the new features the latest version

What's New from XCode 7, iOS 9 and Swift 2

Since WWDC 2015, there are a lot changes in iOS development world. Now the release date of next version of iOS, as well as the new iPhones is coming closer, I would like to share with you about, what is new from the IDE – XCode 7, the language – Swift 2,

ios

iOS9 App Transport Security

Warning: this post is indented for temporarily resolve problem about apps, which do not use HTTPS internally for working with iOS9. Please update your app with HTTPS and remove the workaround, if you have ever applied. What the hell is App Transport Security? At WWDC 2015, Apple announced “App Transport

animation

Create a Rotation Animation for Album Artwork in Swift

We love minor animation, which is something we feel extraterrestrial. Today we want to show you the way we create a nicely animation for album artwork view inside our next project: ![Rotation_AlbumArt](h As you can see, the artwork is a circle image view, we also have to smaller

animation

Animate Time Count Down in Swift

We have just finished a piece in our UI for next project, and we are excited to share with you today. This is what it look like: ![Morph_CountDown](htt As you can see, the label display timestamp, which is suitable with duration field. And it count down to zero

beacon

Beacon Detector on Android with Third-Party Library

In previous post, we are able to scan for BLE devices using Android native BluetoothAdapter. For beacon detector, we also use scan record byte array to identify layout and data frame of beacon. In this post, we are going to implement the same feature but by using a third-party library.

beacon

Beacon Detector on Android

Beacon is one of the most trending technologies now. As retailers are always looking for the next great way to generate sales. Beacons are one technology that have taken the spotlight. Beacons have been featured in the news, mostly under the name “iBeacon” – Apple’s protocol using Beacon technologies. To

ios

Using Shimmer Effect to Indicate Music Buffering in iOS

While developing a music app, which play your songs over the internet, you are likely to meet a normal case, if your music need to be buffered before it can be playable. You can open a random YouTube video and see the buffer indicator like this: [ So with normal music,

core data

CoreData Syncing with Swift

When developing an app which its data is fetched from remote server and need to be cached inside for faster data displaying, you should really go with an efficient way in both performance and code involved. Here we have several requirements for our latest iOS app: * Data should be fetched

app review

Alive - Another Video of Instagram

I quite like photography and video app, that’s why I like to browse on App Store to see any interesting everyday. Today, I found Alive. My first impression is “Wow, another Instagram”, but after using a few minutes, I found it still has much more features which I would

android studio

Beauty Me Case Study: Android Powered By Studio

In previous post, we had talked about iOS app of Beauty Me project. We had used XCode with new and shiny language Swift to provide a modern syntax and configuration for our project. Today, we will talk about Android counterpart. Which will involve the “official” Android IDE from Google: Android

android studio

Quickly Create Parcelable Class in Android Studio

Passing primitive data types like string, integer, float, etc. through intents is quite easy in Android. All you have to do is put the data with unique key in intents and send it to another activity. If a user wants to send Java objects through intent, Java class should be

xcode

XCode Plugin Management with Alcatraz

XCode is a powerful IDE within OS X. It has nice interface builder as well as intelligent compiler. However, it sucks at many other handful tasks, like most users will find its auto-complete is stupid, while Objective-C or even Swift are likely to have very long function name. ![XCode_About]