Android Tutorial Last Updated : 06 Jan, 2025 Comments Improve Suggest changes Like Article Like Report In this Android Tutorial, we cover both basic and advanced concepts. So whether you are a fresher (graduate) or an experienced candidate with several years of Android Development experience, you can follow this Android tutorial to kick-start your journey in Android app development. Our Android Tutorial is designed to take you from zero to hero level. Beginners can follow this Android tutorial in a sequential order to grasp the basics of Android development.Android is the best-selling open-source Linux-based operating system among various mobile platforms across the globe. Hundreds of millions of mobile devices are powered by Android in more than 190 countries of the world. It conquered around 75% of the global market share by the end of 2020, and this trend is growing bigger every other day.Prerequisites to Learn Android Basic Programming Skills: Understand variables, loops, if-statements, functions, and data structures.Object-Oriented Programming (OOP): Know about classes, objects, inheritance, polymorphism, and encapsulation.Java or Kotlin: Learn either Java or Kotlin, Kotlin being the preferred language.XML Basics: Get familiar with XML for designing app layouts.BasicsIntroduction to Android DevelopmentHistory of AndroidBest Way to Become Android Developer – A Complete RoadmapBasic Prerequisites for Learning Android App DevelopmentAndroid App Development Fundamentals for BeginnersAndroid Architecture and FrameworkAndroid System ArchitectureAndroid Boot ProcessJava vs Kotlin in Android with ExamplesInteresting Facts About AndroidSoftware Setup and ConfigurationDownload and Install Java Development Kit (JDK) on Windows, Mac, and LinuxGuide to Install and Set up Android StudioGuide to Install and Setup IntelliJ IDEA for Android App DevelopmentGuide to Install and Setup Visual Studio for Android App DevelopmentRunning Your First Android AppHow to Run the Android App on a Real Device?Resolving Frequently Occurring Errors in Android DevelopmentAndroid StudioAndroid Studio Main WindowDifferent Types of Activities in Android StudioHow to Create/Start a New Project in Android Studio?How to Clone Android Project from GitHub in Android Studio?How to install Android Virtual Device(AVD)How to Install Genymotion Emulator and Add its Plugin to Android Studio?How to Convert Kotlin Code to Java Code in Android Studio?How to Convert Java Code to Kotlin Code in Android Studio?How to Upload Project on GitHub from Android Studio?How to Request Permissions in Android Application?How to Create Classes in Android Studio?How to Install and Uninstall Plugins in Android Studio?How to Generate Signed Apk in Android Studio?How to Generate Unsigned (Shareable) Apk in Android Studio?How to Generate SHA1, MD5, and SHA-256 Keys in Android Studio?File StructureAndroid Project folder StructureAndroid Application File StructureThe Application Manifest Fileres/values folder in Android Studiobuild.gradle file in Android StudioAssets Folder in Android StudioResource Raw Folder in Android StudioComponentsComponents of an Android ApplicationIntroduction to Activities in AndroidServices in Android with ExampleContent Providers in Android with ExampleBroadcast Receiver in Android With ExampleCore TopicsHow Does Android App Work?Activity Lifecycle in Android with Demo AppIntroduction to GradleWhat is Context in Android?Bundle in Android with ExampleActivity State Changes In Android with ExampleProcesses and Application Lifecycle in AndroidDesugaring in AndroidDifference Between AndroidX and Android Support LibrariesMemory Leaks in AndroidHow to Restore Data on Configuration Changed in Android using Bundles?Deep Linking in Android with ExampleEasy Runtime Permissions in Android with DexterDebugging with Stetho Logcat Window in Android StudioLayoutLayouts in Android UI DesignAndroid UI LayoutsLinearLayout and its Important Attributes with Examples in AndroidAndroid LinearLayout in KotlinAndroid RelativeLayout in KotlinConstraintLayout in AndroidShimmerLayout in Android with ExamplesNavigation Drawer in AndroidCurve Navigation Drawer in Android using ArcNavigationViewAlign the Navigation Drawer and its Elements towards the Left or Right of the ScreenHow to Create Landscape Layout in Android Studio?Absolute Layout in Android with ExampleAndroid FrameLayout in KotlinAndroid TableLayout in KotlinAndroid Motion Layout in KotlinDifference Between LinearLayout and RelativeLayout in AndroidViewTextViewTextView widget in Android using Java with ExamplesTextView in KotlinWorking With the TextView in AndroidAutosizing TextView in AndroidWhat is the Difference Between “px”, “dip”, “dp” and “sp” in Android?Clipboard in AndroidHow to Add a TextView with Rounded Corner in Android?EditTextEditText widget in Android using Java with ExamplesAndroid EditText in KotlinWorking With the EditText in AndroidHow to add Mask to an EditText in AndroidImageViewImageView in KotlinHow to create a Circular image view in Android without using any library?How to Create Circular ImageView in Android using CardView?How to Create a CircularImageView in Android using hdodenhof Library?ListViewAndroid Listview in Java with ExampleAndroid ListView in KotlinScrollViewScrollView in AndroidHorizontalScrollView in KotlinNestedScrollView in Android with ExampleCardViewCardView in Android With ExampleHow to create an Expandable CardView in AndroidCardView using RecyclerView in Android with ExampleGridViewGridView in Android with ExampleGridView Using Custom ArrayAdapter in Android with ExampleGridView Using BaseAdapter in Android with ExampleStaggered GridView in Android with ExampleOther ViewsWebView in AndroidVideoView in KotlinYoutubePlayerView in AndroidSearchView with ExampleSearchView in Android with RecyclerViewBottomNavigationView in AndroidScratch Card View in Android with ExamplePhotoView in AndroidPopView in AndroidGalleryView in Android with ExampleWheelView in AndroidElastic View in AndroidProtractorView in AndroidWaveLineView in AndroidTreeView in Android with ExampleDropDownView in AndroidZigzag View in AndroidViewAnimator in Android with ExampleViewSwitcher in Android with ExampleViewStub in Android with ExampleSlidingDrawer in Android with ExampleButtonButton in KotlinHow to add Radio Buttons in an Android Application?RadioButton in KotlinHow to add a Toggle Button in an Android ApplicationToggleButton in KotlinRadioGroup in KotlinHow to use CheckBox on AndroidCheckBox in KotlinImageButton in KotlinLoadingButton in AndroidFloating Action Button (FAB) in Android with ExampleTheming Floating Action Buttons in Android with ExampleRipple Effect on Android ButtonHow to create customized Buttons in Android with different shapes and colorsDouble-Tap on a Button in AndroidIntent and Intent FiltersWhat is Intent in Android?Implicit and Explicit Intents with ExamplesHow to send data from one activity to the second activityHow to open the dialer in Android through Intent?Creating multiple Screen appHow to open Camera through Intent and display captured imageHow to send an Email from your Android App?How to make a phone call from your Android App?How to share a captured Image to another App on AndroidHow to send messages on WhatsApp on AndroidHow to send messages on WhatsApp on Android using KotlinToastToasts for Android StudioWhat is Toast and How to use it with ExamplesAndroid Toast in KotlinHow to Change Toast font?How to add a custom-styled Toast in AndroidHow to add a custom-styled Toast in Android using KotlinRecyclerViewRecyclerView in Android with ExampleHorizontal RecyclerView with ExamplesHow to create a nested RecyclerView in AndroidHow to Create RecyclerView with Multiple ViewType in Android?RecyclerView using ListView in Android With ExamplePull to Refresh with RecyclerView in Android with ExampleRecyclerView as Staggered Grid in Android With ExampleRecyclerView using GridLayoutManager in Android With ExampleHow to add a Bullet list in a RecyclerView in Android?How to insert Slide From Bottom animation in RecyclerView in AndroidHow to Access any Component Outside RecyclerView from RecyclerView in Android?How to Improve RecyclerView Scrolling Performance in Android?How to Build a Facebook-Like Custom RecyclerView in Android?How to Build an Instagram-Like Custom RecyclerView in Android?FragmentsIntroduction to Fragments | AndroidFragment Lifecycle in AndroidHow to Create a New Fragment in Android Studio?How to create Swipe Navigation in an Android AppViewPager Using Fragments in Android with ExampleTabHost in Android with ExampleAdaptersArrayAdapter in Android with ExampleSimpleAdapter in Android with ExampleSimpleExpandableListAdapter in Android with ExampleAdapterViewFlipper in Android with ExampleBaseExpandableListAdapter in Android with ExampleCustomArrayAdapter in Android with ExampleCustom ArrayAdapter with ListView in AndroidCustom SimpleAdapter in Android with ExampleOther UI ComponentSpinnerSpinner in Android with ExampleSpinner in KotlinDynamic Spinner in KotlinHow to add Custom Spinner in android?Alert DialogAlert Dialog Box and How to create itHow to create a custom AlertDialog in AndroidHow to Create AlertDialog Box Using SweetAlert Dialog Library?Alert Dialog with SingleItemSelection in AndroidAlert Dialog with MultipleItemSelection in AndroidHow to Change the Position of AlertDialog in Android?SwitcherSwitch in KotlinDynamic Switch in KotlinTextSwitcher in KotlinDynamic TextSwitcher in KotlinImageSwitcher in KotlinDynamic ImageSwitcher in KotlinHow to add Custom Switch using IconSwitch Library in android?Google Launcher-Style Implementation of Switch Icon in AndroidAndroid NotificationNotifications in Android with ExampleHow to Push Notification in Android?Notifications in Android Oreo (8+)Create an Expandable Notification Containing Some Text in AndroidCreate an Expandable Notification Containing a Picture in AndroidAndroid progress notifications in KotlinPush Notifications in Android Using OneSignalAndroid MenuAndroid MenusHow to implement Options Menu in AndroidContext Menu in Android with ExamplePopup Menu in Android With ExampleImage Loading LibrariesTop 5 Image Loading Libraries in AndroidHow to Use Picasso Image Loader Library in Android?How to Use Glide Image Loader Library in Android Apps?Fresco Image Loading Library in Android with ExampleHow to Use Universal Image Loader Library in Android?How to Use COIL Image Loader Library in Android Apps?Date and TimeDatePicker in KotlinTimePicker in KotlinHow to display an Analog clock and a Digital clockCreating a Calendar View appPulseCountDown in Android with ExampleImplement customized TimePicker in Android using SnapTimePickerCountDownTimer in Android with ExampleDatePickerDialog in AndroidTextClock in KotlinChronometer in KotlinDate and Time Formatting in AndroidSlider Date Picker in AndroidMaterial DesignIntroduction to Material Design in AndroidResponsive UI Design in AndroidMaterial Design EditText in Android with ExamplesTheming of Material Design EditText in Android with ExampleKey Properties of Material Design EditText in AndroidHow to Use Material Text Input Layout in Android?Material Design Buttons in Android with ExampleTheming Material Design Buttons in Android with ExamplesMaterial Design Date Picker in AndroidMore Functionalities of Material Design Date Picker in AndroidSnackbar Material Design Components in AndroidTheming Material Design Snackbars in Android with ExampleMaterial Design Components Chips in Android with ExampleBarsWhat Are the Different Types of Bars Available on Android?ActionBar in Android with ExampleToolBar in Android with ExampleDifference Between ActionBar and Toolbar in AndroidDifference Between AppBar, ActionBar, and Toolbar in AndroidCreating a SeekBarDiscrete SeekBar in KotlinBottom Navigation Bar in AndroidProgressBar in KotlinCroller in AndroidCreating a RatingBarSnackbar in AndroidCustom Snackbars in AndroidColorSeekBar in AndroidRangeSeekbar in Android Using KotlinExpandableBottomBar in AndroidState ProgressBar in AndroidWorking with Google MapsHow to Generate API Key for Using Google Maps in Android?How to Add Custom Marker to Google Maps in Android?How to Add Multiple Markers on Google Maps in Android?How to Use Different Types of Google Maps in Android?How to Add SearchView in Google Maps on Android?How to Add OnClickListner to Marker on Google Maps in Android?How to Draw Polyline in Google Maps in Android?How to Calculate Distance Between two Locations in Android?How to Draw a Track on Google Maps in Android?How to Add Dynamic Markers in Google Maps with Firebase Firstore?ChartHow to add a Pie Chart into an Android ApplicationPoint Graph Series in AndroidHow to Create Group BarChart in Android?How to Create a BarChart in Android?Line Graph View in Android with ExampleHow to Create a Scatter Chart in Android to Represent Data?AnimationAnimation in Android with ExampleAndroid Animations using JavaAndroid Animations in KotlinHow to add fading TextView animation in AndroidHow to add Lottie Animation in an Android appAndroid Rotate animations in KotlinTextWriter in Android with ExampleLineAnimationView in Android with ExampleBubbleEmitter animation in Android with ExamplesCreate an Instagram/Twitter Heart-Like Animation in AndroidImplement Zoom In or Zoom Out in AndroidBungeeAnimation in Android with ExampleParticleView in Android with ExamplesBounce Animation in AndroidHow to Create an Animated Splash Screen in Android?Interpolator in Android with ExampleAndroid Fade In/Out in KotlinAndroid Slide Up/Down in KotlinShimmer Effect on Image in AndroidHow to Create Shine Effect in Android?Wave Animation in AndroidCircular Reveal Animation in AndroidDatabaseFirebaseFirebase – IntroductionAdding Firebase to Android AppHow to use Firebase UI Authentication Library in Android?User authentication using Firebase in AndroidFirebase Authentication with Phone Number OTP in AndroidHow to Use Firebase Firestore as a Realtime Database in Android?How to Add Firebase Analytics to Android App in Android Studio?How to Create Dynamic Auto Image Slider in Android with Firebase?How to Create Dynamic WebView in Android with Firebase?How to Create Dynamic PDF Viewer in Android with Firebase?Operation with Firebase Realtime DatabaseFirebase RealTime Database with Operations in Android with ExamplesHow to Save Data to the Firebase Realtime Database in Android?How to Retrieve Data from the Firebase Realtime Database in Android?How to Retrieve Data from Firebase Realtime Database in Android ListView?How to Create a Dynamic Audio Player in Android with Firebase Realtime Database?How to Create a Dynamic Video Player in Android with Firebase Realtime Database?Operation with Firebase FirestoreHow to Create and Add Data to Firebase Firestore in Android?How to Read Data from Firebase Firestore in Android?How to Update Data in Firebase Firestore in Android?How to Delete Data from Firebase Firestore in Android?How to Create Dynamic Intro Slider in Android using Firebase Firestore?How to Create Dynamic Bottom Sheet Dialog in Android using Firebase Firestore?How to Display Dynamic AlertDialog in Android using Firebase Firestore?How to Create Dynamic ListView in Android using Firebase Firestore?How to Create Dynamic Horizontal RecyclerView in Android using Firebase Firestore?How to Create Dynamic GridView in Android using Firebase Firestore?SQLiteHow to pre-populate database in Android using SQLite DatabaseRoom DBHow to Perform CRUD Operations in Room Database in Android?Advance AndroidStorageShared Preferences in Android with ExamplesInternal Storage in Android with ExampleExternal Storage in Android with ExampleHow to Save ArrayList to SharedPreferences in Android?Preferences DataStore in AndroidHow to Add Views Dynamically and Store Data in Arraylist in Android?JSON and VolleyVolley Library in AndroidJSON Parsing in AndroidJSON Parsing in Android using Volley LibraryHow to Extract Data from JSON Array in Android using Volley Library?Threading and MultithreadingThread Priority in Kotlin and AndroidMultiThreading in Android with ExamplesRunning User Interface Thread in Android using KotlinKotlin CoroutineKotlin Coroutines on AndroidScopes in Kotlin CoroutinesDispatchers in Kotlin CoroutinesLaunch vs Async in Kotlin CoroutinesSuspend Function In Kotlin CoroutinesSingleton Class in KotlinwithContext in Kotlin CoroutinesrunBlocking in Kotlin Coroutines with ExampleJobs, Waiting, Cancellation in Kotlin CoroutinesGetting Started with Paging Library v3 in Android using Kotlin CoroutinesDependency InjectionDependency Injection with Dagger 2 in AndroidDagger 2 Android Example using RetrofitJetpackIntroduction to Android JetpackFoundation Components of Android JetpackArchitecture Components in AndroidBehavior Components of Android JetpackUI Components of Android JetpackHow to Install Android Studio Canary Version?View Binding in Android JetpackView Binding with Fragments in Android JetpackJetPack ComposeBasics of Jetpack Compose in AndroidHow to Create a New Project in Android Studio Canary Version with Jetpack Compose?TextView in Android using Jetpack ComposeImageView in Android using Jetpack ComposeRadioButtons in Android using Jetpack ComposeProressBar in Android using Jetpack ComposeAlertDialog in Android using Jetpack ComposeTopAppBar in Android using Jetpack ComposeCircular ImageView in Android using Jetpack ComposeCheckbox in Android using Jetpack ComposeButton in Android using Jetpack ComposeEditText in Android using Jetpack ComposeArchitectureAndroid Architecture PatternsMVC (Model View Controller) Architecture Pattern in Android with ExampleMVP (Model View Presenter) Architecture Pattern in Android with ExampleMVVM (Model View ViewModel) Architecture Pattern in AndroidDifference Between MVC and MVVM Architecture Pattern in AndroidDifference Between MVC and MVP Architecture Pattern in AndroidDifference Between MVP and MVVM Architecture Pattern in AndroidDifference Between MVC, MVP, and MVVM Architecture Pattern in AndroidApp PublishHow to Publish Your Android App on Google Play Store?How to Publish Your Android App on Amazon App Store for Free?App MonetizationOverview of Google AdmobAdMob Banner Ads for Android StudioAdMob Interstitial Ads for Android StudioHow to Integrate Google Admob Rewarded Video Ads in Android?Overview of Facebook Audience NetworkHow to Integrate Facebook Audience Network (FAN) Banner Ads in Android?How to Integrate Facebook Audience Network (FAN) Native Ads in Android?How to Integrate Facebook Audience Network (FAN) Interstitial Ads in Android?How to Integrate Facebook Audience Network (FAN) Rewarded Video Ads in Android?ProjectsHow to build a simple Calculator app using Android Studio?How to create a Stopwatch App using Android StudioHow to Build a Simple Flashlight/TorchLight Android App?How to Build a Simple Notes App in Android?How to Build Spin the Bottle Game Application in Android?How to create a COVID-19 Tracker Android AppHow to Build a Tic Tac Toe Game in Android?How to create a Face Detection Android App using Machine Learning KIT on FirebaseHow to Build a Simple Augmented Reality Android App?How to Build a Grocery Android App?How to Build a Video Calling Android App with Jitsi Meet SDK?Tips and TricksHow to install Android Applications on Mobile Phones without USB Cables using Android StudioTips to Prepare Your Android App For Launch in Google Play StoreTop 7 Google Play Store Tips That You Should TryTop 8 Tips to Get Your Android App Featured on Google Play Store7 Tips to Improve Your Android Development SkillsTop 7 Books For Android App Development8 Best Android Libraries That Every Android Developer Should KnowHow to Reduce APK Size in Android?6 Most Useful Android Studio Plugins8 Must-Have Skills for Becoming an Android App Developer7 Major Reasons Why Your Android App is Performing Slow – Must Read For Developers!MiscellaneousHow to create a Facebook login using an Android App?Screen Orientations in Android with ExamplesHow to change Input Method Action Button in Android?Introduction to Retrofit 2 in androidHow to Display the List of Sensors Present in an Android Device Programmatically?How to Check the Battery Level in Android Programmatically?How to Determine the Current Dock Type in Android?How to Check if the Android Device is in Dock State?How to Vibrate a Device Programmatically in Android?Input Events in Android with ExampleAndroid Gestures with ExamplesSession Management in Android with ExampleInclude and Merge Tags in Android with ExampleHow to Use Proguard to Reduce APK Size in Android?How to use R8 to Reduce APK Size in Android?Difference Between Proguard and R8 in AndroidWelcome to The Modern Android App DevelopmentConclusion:In conclusion, this Android tutorial serves as a comprehensive resource for beginners and experienced developers alike. By following the step-by-step instructions and leveraging the power of Android Studio, learners can acquire a solid foundation in Android app development. From understanding the fundamentals to exploring advanced concepts, this tutorial equips individuals with the necessary knowledge and skills to embark on their journey in the world of Android development. With continuous practice, staying updated with the latest trends, and actively engaging with the Android community, readers can unlock endless possibilities to create innovative and impactful mobile applications. Start your Android development journey today and embrace the opportunities that this dynamic platform offers. Top 50 Android Interview Questions & Answers – SDE I to SDE III Comment More infoAdvertise with us Next Article Introduction to Android Development abhishek1 Follow Improve Article Tags : Android Tutorials Similar Reads Android Tutorial In this Android Tutorial, we cover both basic and advanced concepts. So whether you are a fresher (graduate) or an experienced candidate with several years of Android Development experience, you can follow this Android tutorial to kick-start your journey in Android app development. Our Android Tutor 15+ min read BasicsIntroduction to Android DevelopmentAndroid operating system is the largest installed base among various mobile platforms across the globe. Hundreds of millions of mobile devices are powered by Android in more than 190 countries of the world. It conquered around 71% of the global market share by the end of 2021, and this trend is grow 5 min read History of AndroidAndroid devices form a very essential part of a huge section of mobile phone users in today's world. With the global turmoil in the COVID-19 eras, the population has now entered a digital sphere. Android is the most used OS in smartphones during these days of transformation. But when did something l 15+ min read Best Way to Become Android Developer – A Complete RoadmapAndroid is an open-source operating system, based on the Linux kernel and used in mobile devices like smartphones, tablets, etc. Further, it was developed for smartwatches and Android TV. Each of them has a specialized interface. Android has been one of the best-selling OS for smartphones. Android O 7 min read Android Development Prerequisites [2025] - Things to Learn Before Android DevelopmentHave you ever wondered how your phone's apps—such as those for making calls, playing games, or checking the weather—are created? Android Development is the procedure used to generate these apps. The Android operating system powers the majority of phones, just like an engine powers a car. To ensure t 8 min read Android App Development Fundamentals for BeginnersAndroid is an operating system that is built basically for Mobile phones. It is based on the Linux Kernel and other open-source software and is developed by Google. It is used for touchscreen mobile devices such as smartphones and tablets. But nowadays these are used in Android Auto cars, TV, watche 6 min read Android ArchitectureAndroid architecture contains a different number of components to support any Android device's needs. Android software contains an open-source Linux Kernel having a collection of a number of C/C++ libraries which are exposed through application framework services. Among all the components Linux Kern 5 min read Android System ArchitectureThe Android software stack generally consists of a Linux kernel and a collection of C/C++ libraries that are exposed through an application framework that provides services, and management of the applications and run time. Linux KernelAndroid was created on the open-source kernel of Linux. One main 3 min read Android Boot ProcessBooting Process In computing, booting is starting up a computer or computer appliance until it can be used. It can be initiated by hardware such as a button press, or by software command. After the power is switched on the computer is relatively dumb, and can read only part of its storage called Rea 4 min read Difference between Java and Kotlin in Android with ExamplesKotlin KOTLIN is a cross platform, statically types, general purpose programming language with type inference. KOTLIN is designed to interoperate fully with java but type inference allows its syntax to be more concise.KOTLIN is sponsored by JetBrains and Google through the Kotlin Foundation. Java JA 3 min read Interesting Facts About AndroidAndroid is a Mobile Operating System that was released on 23, September 2008. Android is free, open-source operating system and is based on modified version of Linux kernel. Open Handset Alliance (OHA) developed the Android and Google commercially sponsored it. It is mainly designed for touchscreen 3 min read Software Setup and ConfigurationDownload and Install Java Development Kit (JDK) on Windows, Mac, and LinuxJava Development Kit (JDK) is one of the most important tools for developers who use it to build, compile, and run Java applications. It does not matter if you are a beginner or an experienced programmer; installing JDK is the first step towards working with Java development. We can download JDK to 7 min read Guide to Install and Setup IntelliJ IDEA for Android App DevelopmentTo start developing Android applications, one has to set up a proper development environment. It facilitates developers to use the tools needed in creating an app and ensure that all operations/processes carried out in a smooth manner. An IDE(Integrated Development Environment) is a complete applica 5 min read Guide to Install and Setup Visual Studio for Android App DevelopmentTo start developing Android applications, one has to set up a proper development environment. It facilitates developers to use the tools needed in creating an app and ensure that all operations/processes carried out in a smooth manner. An IDE(Integrated Development Environment) is a complete applica 4 min read How to Run the Android App on a Real Device?The time comes when the Android Studio project is ready and you want to test that application. One can test the application by running the application which can be done in two ways. By running the app on an Android Virtual Device(AVD), andBy running the app on a real device So in this article, we ar 2 min read Resolving frequently occurring errors in Android DevelopmentThis article is for all the beginners who have just started Android development Tools on Eclipse IDE for developing Android applications. Most of the beginners often face errors while developing the android applications. The errors which we are going to discuss in this article are not syntax errors. 3 min read Android Studio Tutorial It is stated that "If you give me six hours to chop down a tree then I will spend the first four hours in sharpening the axe". So in the Android Development World if we consider Android Development as the tree then Android Studio should be the axe. Yes, if you are starting Android Development then y 9 min read File Structure & ComponentsComponents of an Android ApplicationThere are some necessary building blocks that an Android application consists of. These loosely coupled components are bound by the application manifest file which contains the description of each component and how they interact. The manifest file also contains the app’s metadata, its hardware confi 3 min read Introduction to Activities in AndroidActivity class is one of the very important parts of the Android Component. Any app, don't matter how small it is (in terms of code and scalability), has at least one Activity class. Unlike most programming languages, in which the main() method is the entry point for that program or application to s 6 min read Services in Android with ExampleServices in Android are a special component that facilitates an application to run in the background in order to perform long-running operation tasks. The prime aim of a service is to ensure that the application remains active in the background so that the user can operate multiple applications at t 10 min read Core TopicsHow Does Android App Work?Developing an android application involves several processes that happen in a sequential manner. After writing the source code files, when developers click the Run button on the Android studio, plenty of operations and process starts at the backend. Every operation happening in the background is a c 7 min read Activity Lifecycle in Android with Demo AppIn Android, an activity is referred to as one screen in an application. It is very similar to a single window of any desktop application. An Android app consists of one or more screens or activities. Each activity goes through various stages or a lifecycle and is managed by activity stacks. So when 9 min read Introduction to GradleGradle is an excellent open-source construction tool that is capable of the development of any kind of software. This tool was developed by a gaggle of developers named Hans Dockter, Szczepan Faber Adam Murdoch, Luke Daley, Peter Niederwieser, Daz DeBoer, and Rene Gröschkebefore 13 years before. It 8 min read What is Context in Android?Android Applications are popular for a long time and it is evolving to a greater level as users' expectations are that they need to view the data that they want in an easier smoother view. Hence, the android developers must know the important terminologies before developing the app. In Android Progr 9 min read Bundle in Android with ExampleIt is known that Intents are used in Android to pass to the data from one activity to another. But there is one another way, that can be used to pass the data from one activity to another in a better way and less code space ie by using Bundles in Android. Android Bundles are generally used for passi 6 min read Activity State Changes In Android with ExamplePrerequisites: Activity lifecycle in android As it is known that every Android app has at least one activity associated with it. When the application begins to execute and runs, there are various state changes that activity goes through. Different events some user-triggered and some system triggered 6 min read Processes and Application Lifecycle in AndroidAs an android developer, if one does not know the application lifecycle of android application or does not have in-depth knowledge about it, there are very high chances that the application will not have a good user experience. Not having proper knowledge of the application lifecycle will not affect 7 min read Desugaring in AndroidGoogle has officially announced Kotlin as a recommended language for Android Development and that's why so many developers are switching from Java to Kotlin for Android development. So day by day new APIs are been introduced in Android by the Google Team and which are available in newer versions of 4 min read Difference Between AndroidX and Android Support LibrariesSupport library packages in Android are a set of code libraries whose prime purpose is to provide backward-compatibility to the code and Android API framework. In the real world, there is a strong possibility that an application that is developed on the latest Android version is used on an older ver 3 min read Memory Leaks in AndroidA memory leak is basically a failure of releasing unused objects from the memory. As a developer one does not need to think about memory allocation, memory deallocation, and garbage collection. All of these are the automatic process that the garbage collector does by itself, but the situation become 7 min read Layout & ViewLayouts in Android UI DesignLayout Managers (or simply layouts) are said to be extensions of the ViewGroup class. They are used to set the position of child Views within the UI we are building. We can nest the layouts, and therefore we can create arbitrarily complex UIs using a combination of layouts.There is a number of layou 3 min read Android UI LayoutsLayouts in Android define the user interface and hold UI controls or widgets that appear on the screen of an application. Every Android application consists of View and ViewGroup elements. Since an application contains multiple activities—each representing a separate screen—every activity has multip 5 min read LinearLayout and its Important Attributes with Examples in AndroidLinearLayout is one of the most basic layouts in android studio, that arranges multiple sub-views (UI elements) sequentially in a single direction i.e. horizontal or vertical manner by specifying the android:orientation attribute. If one applies android:orientation="vertical" then elements will be a 3 min read Android LinearLayout in KotlinLinearLayout in Android is a ViewGroup subclass, used to arrange child view elements one by one in a singular direction either horizontally or vertically based on the orientation attribute. We can specify the linear layout orientation using the android:orientation attribute. All the child elements a 2 min read Android RelativeLayout in KotlinRelativeLayout in Android is a ViewGroup subclass, that allows users to position child views relative to each other (e.g., view A to the right of view B) or relative to the parent (e.g., aligned to the top of the parent). Instead of using LinearLayout, we have to use RelativeLayout to design the use 4 min read ConstraintLayout in AndroidConstraintLayout is the most advanced layout in Android that lets you create complex and responsive UIs while minimizing nested views due to its flat view hierarchy. ConstraintLayout is similar to that of other View Groups which we have seen in Android such as RelativeLayout, LinearLayout, and many 6 min read TextView widget in Android with ExamplesWidget refers to the elements of the UI (User Interface) that help the user interact with the Android App. TextView is one of many such widgets which can be used to improve the UI of the app. TextView refers to the widget which displays some text on the screen based on the layout, size, colour, etc 5 min read TextView in KotlinAndroid TextView is simply a view that are used to display the text to the user and optionally allow us to modify or edit it. First of all, open Kotlin project in Android Studio. Following steps are used to create Steps to Implement TextViewSteps by Step implementation for creating an application wh 3 min read Working With the TextView in AndroidTextView in Android is one of the basic and important UI elements. This plays a very important role in the UI experience and depends on how the information is displayed to the user. This TextView widget in Android can be dynamized in various contexts. For example, if the important part of the inform 7 min read Autosizing TextView in AndroidIf the user is giving the input and the input needs to be shown as TextView and if the user inputs the stuff which can go out of the screen, then in this case the font TextView should be decreased gradually. So, in this article, it has been discussed how the developer can reduce the size of TextView 6 min read ButtonButton in AndroidIn Android applications, a Button is a user interface that is used to perform some action when clicked or tapped. It is a very common widget in Android and developers often use it. This article demonstrates how to create a button in Android Studio.Class Hierarchy of the Button Class in Kotlinkotlin. 3 min read How to Add Radio Buttons in an Android Application?Android radio button is a widget that can have more than one option to choose from. The user can choose only one option at a time. Each option here refers to a radio button and all the options for the topic are together referred to as Radio Group. Hence, Radio Buttons are used inside a RadioGroup. F 5 min read RadioButton in KotlinAndroid Radio Button is bi-state button which can either be checked or unchecked. Also, it's working is same as Checkbox except that radio button can not allow to be unchecked once it was selected. Generally, we use RadioButton controls to allow users to select one option from multiple options. By d 4 min read How to add Toggle Button in an Android ApplicationToggleButton is basically a stop/play or on/off button with an indicator light indicating the current state of ToggleButton. ToggleButton is widely used, some examples are on/off audio, Bluetooth, WiFi, hot-spot etc. This is a subclass of Composite Button. ToggleButton allows users to change setting 3 min read ToggleButton in KotlinIn Android, the ToggleButton is just like a switch containing two states either ON or OFF which are represented using boolean values true and false respectively. ToggleButton unlike switch does not have a slider interface i.e. we cannot slide to change the states. It is just like a button. In this a 2 min read RadioGroup in KotlinRadioGroup class of Kotlin programming language is used to create a container which holds multiple RadioButtons. The RadioGroup class is beneficial for placing a set of radio buttons inside it because this class adds multiple-exclusion scope feature to the radio buttons. This feature assures that th 3 min read Intent and Intent FiltersWhat is Intent in Android?In Android, it is quite usual for users to witness a jump from one application to another as a part of the whole process, for example, searching for a location on the browser and witnessing a direct jump into Google Maps or receiving payment links in Messages Application (SMS) and on clicking jumpin 4 min read Implicit and Explicit Intents in Android with ExamplesPre-requisites: Android App Development Fundamentals for Beginners Guide to Install and Set up Android Studio Android | Starting with the first app/android project Android | Running your first Android app This article aims to tell about the Implicit and Explicit intents and how to use them in an and 6 min read How to Send Data From One Activity to Second Activity in Android?This article aims to tell and show how to "Send the data from one activity to second activity using Intent" . In this example, we have two activities, activity_first which are the source activity, and activity_second which is the destination activity. We can send the data using the putExtra() method 7 min read How to open dialer in Android through Intent?The phone dialer is an activity available with the Android operating system to call a number. Usually, such activity may or may not have an EditText, for taking the number as input, and a Call button. When the user presses the Call button, it invokes the dialer app activity. Use of 'tel:' prefix is 3 min read Creating Multiple Screen Applications in AndroidThis article shows how to create an android application to move from one activity to another using the concept of Explicit Intents. Below are the steps for Creating a Simple Android Application to move from one activity to another activity.Step By Step ImplementationStep 1: Create a New Project in A 6 min read How to Open Camera Through Intent and Display Captured Image in Android?The purpose of this article is to show how to open a Camera from inside an App and click the image and then display this image inside the same app. An android application has been developed in this article to achieve this. The opening of the Camera from inside our app is achieved with the help of th 6 min read Toast & RecyclerViewToasts for Android StudioA toast provides a simple popup message that is displayed on the current activity UI screen (e.g. Main Activity). Example: Syntax:// To get ContextContext context = getApplicationContext(); // Message to displayString text = "Toast message"; // Toast time duration, can also set manual value int dura 2 min read What is Toast and How to Use it in Android with Examples?Pre-requisites: Android App Development Fundamentals for BeginnersGuide to Install and Set up Android StudioAndroid | Starting with the first app/android projectAndroid | Running your first Android appWhat is Toast in Android? A Toast is a feedback message. It takes a very little space for displayin 6 min read Android Toast in KotlinA Toast is a short alert message shown on the Android screen for a short interval of time. Android Toast is a short popup notification which is used to display information when we perform any operation in our app. In this tutorial, we shall not just limit ourselves by creating a lame toast but also 3 min read How to Change Toast font in Android?A Toast is a feedback message. It takes a very little space for displaying while overall activity is interactive and visible to the user. It disappears after a few seconds. It disappears automatically. If user wants permanent visible message, Notification can be used. Note: Toast disappears automati 3 min read How to add a custom styled Toast in AndroidA Toast is a feedback message. It takes very little space for displaying and it is displayed on top of the main content of an activity, and only remains visible for a short time period. This article explains how to create Custom Toast messages, which has custom background, image, icon, etc, which ar 4 min read RecyclerView in Android with ExampleRecyclerView is a ViewGroup added to the android studio as a successor of the GridView and ListView. It is an improvement on both of them and can be found in the latest v-7 support packages. It has been created to make possible construction of any lists with XML layouts as an item which can be custo 7 min read Android | Horizontal RecyclerView with ExamplesRecycler View is a ViewGroup added to Android Studio as a successor of the GridView and ListView. It is an improvement on both of them and can be found in the latest v-7 support packages. It has been created to make possible construction of any lists with XML layouts as an item which can be customiz 4 min read How to create a nested RecyclerView in AndroidA nested RecyclerView is an implementation of a RecyclerView within a RecyclerView. An example of such a layout can be seen in a variety of apps such as the Play Store, where the outer (parent) RecyclerView is of vertical orientation, whereas the inner (child) RecyclerViews are of horizontal orienta 5 min read How to Create RecyclerView with Multiple ViewType in Android?RecyclerView forms a crucial part of the UI in Android app development. It is especially important to optimize memory consumption when displaying a long list of items. A RecyclerView inflates a customized list of items, which can have either similar layouts or multiple distinct layouts. Here, we dev 6 min read RecyclerView using ListView in Android With ExampleRecyclerView is a more flexible and advanced version of ListView and GridView. RecyclerView is used for providing a limited window to a large data set, which means it is used to display a large amount of data that can be scrolled very efficiently by maintaining a limited number of Views. In Recycler 5 min read Like