Tutorials, how to’s with large content


Android Simple Section RecylerView

In this tutorial I will create a simple Sectioned RecyclerView that will show 2 sections and a few items in each section and how to move an item from one section to another. Note: For RecyclerView I used AndroidX imports and not android.support.v7.widget.RecyclerView Setup We need to import the recycler view from AndroidX. The build.gradle

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Solutions, Tutorial

Kotlin RecyclerView with Click Listener

Create a RecyclerView in Android with Kotlin – A Step-by-Step Guide In today’s tutorial we’ll learn how to create a RecyclerView in Kotlin for Android with items that are clickable. This approach, distinct from the traditional ListView, offers a more dynamic and flexible way to display a scrollable list. Read on to discover how to

Solutions, Tutorial

ListView with ViewHolder in Kotlin

In this post we will create a ListView with ViewHolder adapter but we will write the code in Kotlin. For creating xml files for ListView and list items, follow the steps from this post. Next, you have to create a new Kotlin class for the adapter. Name the new created file MyCustomAdapter MyCustomAdapter.kt import android.content.Context import


Kotlin – for, while, if, when

Control flow: for, while, if, when This post is for beginners who want to start learning Kotlin language and already know Java. We will show simple examples of for, while, if, when in both languages, in parallel, for an easier understanding. We will use Log.e in order to print string messages, as from our point of view,

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Android Add Game Leaderboard

In order to display leaderboards from your game you will have to set up your project and to be signed in. Below you will learn how to do this. Project Setup Download the Android samples from https://github.com/playgameservices/android-basic-samples Import BaseGameUtils into your project as module  Go to the directory where you downloaded android-basic-samples and select libraries -> BaseGameUtils If you get

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Android ViewPager Tutorial

In Android, if you need to swipe from right to left or vice-versa in order to see different data, you can use a ViewPager. In order to use it, you have to implement a PagerAdapter which will generate the pages that the view shows. ViewPager’s adapters We can use one of the 3 adapters provided:

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Android ViewPager Cube Animation

After trying some libraries in order to make a cube animation for my viewPager, I realized that is pretty easy to do this. Android provides an interface called ViewPager.PageTransformer and you just have to implement its method transformPage(). Below is the code, step by step. activity_main.xml <?xml version=”1.0″ encoding=”utf-8″?> <LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:tools=”http://schemas.android.com/tools” android:layout_width=”match_parent” android:layout_height=”match_parent” tools:context=”ro.helpproject.funcode.help.MainActivity”>

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