Mobile Development Forum

## Introduction ## In this tutorial, we will learn how to add swipe-to-remove and drag-to-reorder functionalities into RecyclerView. ## Goals ## At the end of the tutorial, you would have learned: 1. How to add swipe-to-remove and drag-to-reorder functionality to a RecyclerView. ## Tools Required ## 1. Android Studio. The …

## Introduction ## When using Navigation Components, you might have wondered how to pass arguments between destinations. We will learn how to do just that in this tutorial. This tutorial also builds upon the [Basic Navigation](https://www.daniweb.com/programming/mobile-development/tutorials/536923/android-native-how-to-use-navigation-component#post2282945) tutorial, so if you are not familiar with Navigation Components, I would recommend you …

## Introduction ## If you are working on a native Android app using the View system, then you might have come across a situation where you would need to add a Composable (`androidx.compose.runtime.Composable`) into your View hierarchy. In this tutorial, we will learn how to add a Composable into an …

## Introduction ## Among all of the animation API’s on Android, MotionLayout is one of the best classes to use to create complex animations. It can animate property and motion of multiple views at the same time. Other benefits include declarative style XML and the intuitive **Motion Editor** built right …

## Introduction ## If you are working with the latest Material 3 libraries on Android, you might have wondered how to use the **Bottom Navigation Bar** in your App. In this tutorial, we will learn how to use the Material 3 Bottom Navigation Bar (BNB). ## Goals ## At the …

## Introduction ## Proto DataStore is a great way to store the **permanent** state of your application, especially if you prefer type safety. In this tutorial, we will learn how to store our App state using the Proto DataStore. ## Goals ## At the end of the tutorial, you would …

## Introduction ## The **Storage Access Framework** (SAF) provides a great way to access files exposed by other applications via their own DocumentProviders. In this tutorial, we will learn how to use the SAF in our App. ## Goals ## At the end of the tutorial, you would have learned: …

## Introduction ## In Android development, the MediaStore API is a great API to use if you are building a music player. In this tutorial, we will learn how to query for audio files in the MediaStore database. ## Goals ## At the end of the tutorial, you would have …

## Introduction ## WorkManager is the preferred method of managing background tasks on Android. It also includes convenient extensions for RxJava3 and Kotlin Coroutines. In this tutorial, we will learn how to use WorkManager as well as how to observe the background task with the debugging tool Background Task Inspector. …

## Introduction ## Coil is a popular image loading library for Kotlin-first Android projects. It is lightweight, fast and is super easy to use. In this tutorial, we will learn how to use Coil to load images into our project. ## Goals ## At the end of the tutorial, you …

## Introduction ## In this tutorial, we will learn how to capture a picture with the new **ActivityResult** APIs(`androidx.activity.result`), which replace the `startActivityForResult()` and `onActivityResult()` APIs(*from Activity class*). Additionally, we will also learn about the ContentProvider **FileProvider**, which we will have to set up to save our images. ## Goal …

## Introduction ## Navigation component is an abstraction on top of FragmentManager, which simplifies navigation between fragments. In this tutorial, we will learn how to use the Navigation component in our App. ## Goal ## At the end of the tutorial, you would have learned: 1. How to use the …

## Introduction ## Based on the latest report from Appbrain, Samsung has the highest market share(*>35%*) among all of the Android OEMs, therefore it is important that your apps are tested against Samsung phones. In this tutorial, we will learn how to load Samsung Emulator skins onto our emulator devices. …

## Introduction ## Regardless of whether you like notches on your devices or not, they exist, so as developers, we will have to adapt our Apps to work with them. In this tutorial, we will learn how to adapt our code to work with notches. The device used in this …

## Introduction ## In Android development, Espresso can be combined with Junit to create powerful UI automation tests. In this tutorial, we will learn how to create Espresso tests. ## Goals ## At the end of the tutorial, you would have learned: 1. How to create Espresso tests. ## Tools …

## Introduction ## UI Automator is a library that allows you to create tests that can interact with other components besides your App, such as Settings or other Android components. In this tutorial, we will learn how to incorporate UI Automator into our tests. ## Goals ## At the end …

## Introduction ## In Android development, Intents are used to request an action from an app component. There are two types of Intents: explicit and implicit. Explicit Intents are used when you know the exact package name of the component you need started. Implicit Intents, however, do not need a …

## Introduction ## Snackbars are great for displaying brief messages providing feedback to your users. In this tutorial, we will learn how to create Snackbars. ## Goals ## At the end of the tutorial, you would have learned: 1. How to create a Snackbar. ## Tools Required ## 1. Android …

## Introduction ## Notification is a great way to display information outside of your Android application. Your end users most likely already interact with notifications everyday, so knowing how to create notifications can greatly boost your user experience (*but can also backfire if used incorrectly*). In this tutorial, we will …

## Introduction ## Starting on API level 25, static Shortcuts can be used to quickly navigate to a specific point in your app. In this tutorial, we will learn how to create static shortcuts for an Android app. ## Goals ## At the end of the tutorial, you would have …

## Introduction ## With OLED screens becoming more and more common on smartphones, adapting a dark theme to your app can provide a boost to battery life. In this tutorial, we will learn how to add a dark theme to your native Android app. ## Goals ## At the end …

## Introduction ## All TextView objects have a special attribute called `textAppearance`. This attribute can be used to set the style for text content in a TextView without affecting other styling attributes on the same TextView object. In this tutorial, we will learn how to apply `textAppearance` to TextView objects. …

## Introduction ## Complex Views can use up RAM and reduce the performance of your Android apps. If a View is rarely used, you should consider delaying its rendering until it is needed by your app. One way to do that is to use the ViewStub View. ViewStub is very …

## Introduction ## If your Android app is available to a global audience, you might have wondered how to load localized **String**s into your app. This tutorial will teach you how to do just that. There are quite a few steps involved, but once you understand the concepts, it will …

## Introduction ## One of the best debugging tools in Android Studio is the *live database inspector*. It allows developers to peek at the current state of the database and even run queries against it. In this tutorial, we will learn how to use it to debug a local SQLite …

## Introduction ## In Android development, the current recommended library for Dependency Injection is Hilt. The most obvious benefits of using Hilt are reduced boilerplate code and lifecycle-aware components(*and their associated annotations*). Hilt is a great library, but it is not perfect. Hilt is built on top of Dagger 2, …