Kotlin Beginners

This article reviews some of the courses available with the EduTools Plugin in IntelliJ IDEA where you can read up on the theory and then practise completing exercises directly in the IDE. The advantage of this approach is that you are applying what you have learnt straight away. You also…

Planning to get started in Android development? To build a strong building it's important to lay a foundation. If you are planning to get started, take a look at the core concepts that I will be discussing here. Please keep up with this article and find out whether you are…

Halo semua. Pada artikel kali ini saya akan menjelaskan Control Flow pada Kotlin. Apa itu Control Flow? Control flow adalah cara mengontrol alur dari sebuah program berdasarkan kondisi saat program tersebut berjalan dengan kata lain digunakan untuk menjalankan cabang kode yang berbeda berdasarkan kondisi tertentu. …

What is a Singleton? A Singleton is an object that can only be instantiated once during the life of an application; also known as a “single” instance. This is useful when only one object instance is desired to handle accessing functionality of a class. How to create a Singleton in Kotlin Creating a Singleton is quick and easy. simply declare a…

在蠻多App上都會有一些無限撥放且可滑動的banner，像是蝦皮或是PChome這種電商平台，很愛放這種廣告輪播的方式吸引消費者，或是傳遞消息 可以發現在滑動這些元件的時候，在最後一頁滑動後，會跳回第一頁，相反的從第一頁往左滑也能到最後一頁，但是ViewPager2 本身並沒有提供這種功能，所以是如何做到的? 這邊就單純提供我自己實作成功的方法分享給大家~ 那在實現功能之前，這邊就要稍微了解一下ViewPager2 是如何實現滑動的 ViewPager2 滑動機制 假如今天我們使用的adapter是 FragmentStateAdapter 來切換不同Fragement 去監聽其生命週期，看看這些Fragment在過程中是如何被生成 剛進到載入頁面的時候，第一個畫面被生成，此時還未生成其他Fragment

Halo semua 😅☝️. Pada kesempatan kali ini saya akan menjelaskan Tipe Data dan Variabel pada Kotlin. Dalam Kotlin semuanya adalah sebuah object dalam artian bahwa member function dan property dapat dipanggil pada variable apapun. Setiap nilai/value dalam Kotlin pasti memiliki sebuah tipe data. …

To bridge the gap between user expectation and system behaviour, we use ViewModel, onSaveInstanceState and local/remote storage to persist the UI state in our android application. onSaveInstanceState(): The onSaveInstanceState() callback stores data needed to reload the state of a UI controller, such as an activity or a fragment, if the…

Studying record A list is a collection of items with a specific order. There are two types of lists in Kotlin: Read-only list: List cannot be modified after you create it. Mutable list: MutableList can be modified after you create it, meaning you can add, remove, or update its elements. …

When you call such a function on an object with a lambda expression provided, it forms a temporary scope. In this scope, you can access the object without its name. Such functions are called scope functions. There are five of them: let, run, with, apply, and also. Here’s a typical…