Mobile Development Forum

## 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: …

I have updated my Android Studio to the Artic Fox Version. After that neither the projects with old Gradle versions running nor the new projects with latest Gradle versions running. Only the following errors appears: Could not install Gradle distribution from 'https: //services.gradle.org/distributions/gradle-7.0.2-bin.zip' After this error I manually downloaded the …

Hi DW, I'm experiencing an issue I've tried invalidating, fixed the offline sync but still I'm getting this error. My App uses Firebase FCM. On the dependencies I have `com.google.firebase:firebase-core:16.0.5 com.google.firebase:firebase-messaging:17.3.4` My implementation `com.android.support:appcompact-v7:28.0.0-alpha1` This implementation is underlined with a red line and I think it is what having the …

Hello I want to send multiple values from a to an api function. on the db i store the values in text format. The value that is stored is array on the Swal alert, I am getting [object object] but i want to get each value e.g. Painting or Graphic …

Pls let me know which tool or software to use to develop mobile app. I have 27 yes exp in vb6 and sql. Need to change to mobile app. Pls guide

## Introduction ## The release of Android 12 also came together with Material 3. Whether you love it or hate it, it is likely to be here to stay for a couple of years, therefore, it would be useful to know how to use it. In this tutorial, we will …

## 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 ## 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 ## 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. …

I've been code for android/ios using flutter more than a year. Now I would like to learn new things by using software to **create image** instead of just getting icons from google material design (just like image below). Any recommended ? Thanks. 

## 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 ## 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 ## 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 ## 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 …

Does anyone now if google requires parameters on .htaccess file for php function calls? I used to have a different .htaccess file and my google sign in used to work. Now i changed it and it doesnt. htaccess RewriteEngine On #RewriteBase /api/ Header add Access-Control-Allow-Headers "origin, x-requested-with, content-type" Header add …

## 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 ## 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 ## 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 …

Hello i have a Ionic Angular project with PHP as backend. I created a search for users but in order for the project to run more faster i put a LIMIT of 20 users in the php function that calls the users and call the next 20 with an Angular …

## 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 …

Hi.please support my mobile

## 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, …

Hello I am currently learning Android app development, and using Android Studio 4.1.3. I have noticed that when I run any project, even like a simple "Hello World", the Gradle build takes more than 10 minutes to complete. I have a laptop which is a Core i5 7th Gen, with …