Jetpack Compose Tutorial: Learn to Build Android UIs Easily

Find how to create modern and beautiful Android apps with our Jetpack Compose tutorial, designed to make learning UI development simple and enjoyable for everyone

Google introduced Jetpack Compose at its I/O 2019 developer conference.

Compose is a modern UI toolkit for Android that utilizes a declarative approach. It replaces the traditional view-based system, becoming an integral part of the Android development landscape.

This guide provides a collection of Compose examples designed for beginners with prior Android experience who are eager to learn and utilize Compose in their projects.

What is a Composable?

Composable functions are the fundamental building blocks of Jetpack Compose. They are standard Kotlin functions enhanced with the @Composable annotation.

While superficially they may appear to accept input and produce output, their true nature involves registering actions that contribute to the construction of an in-memory representation of the UI tree. This process of registering actions is referred to as "emitting."

Properties of Composable Functions

Implicit Context:

  • Every @Composable function receives an implicit instance of the Composable context as a parameter.
  • This context is crucial for managing and rendering the UI tree.
  • The context is automatically passed down to child composables within the hierarchy

                        @Composable
                    fun DisplayName(name: String, sirname: String) {
                    	Column(modifier = Modifier.padding(16.dp)) {
                    	Text(text = name)
                    	Text(text = sirname, style = MaterialTheme.typography.subtitle2)
                    	}
                    }
                    

Let's take a simple function with @Composable annotation, for this composable function jetpack compose compiler will add Composable parameter implicitly for each composable call on composable tree

So this will be internally looks like below

 fun DisplayName(name: String, sirname: String, $composer: Composer<*>) {
                    $composer.start(111)
                    Column(modifier = Modifier.padding(16.dp), $composer) {
                    		Text(
                    			text = name,
                    			$composer
                    		)
                    		Text(
                    			text = sirname,
                    			style = MaterialTheme.typography.subtitle2,
                    			 $composer
                    		)
                    	}
                    		$composer.end()
                     }        
                        

Learn more: RRTutors | Flutter | Python | Android

Get Started with Jetpack Compose and Create Modern Android Apps with Our Simple Tutorial examples

Jetpack Compose Tutorial | Jetpack Compose Basics


How to create Jetpack compose textfield


How to Create Jetpack Compose project with Android studio


How to show Jetpack compose alert dialog?


How to show date picker with Jetpack compose?


How to show progress bar with jetpack compose?


How to create checkbox with Jetpack compose?


How to create radio buttons with jetpack compose?


How to create circular imageview with Jetpack compose?


Compose Recyclerview - How to set Adapter to recyclerview


Compose Imageview - How to show Image in Imageview


How to Create Card with Jetpack Compose?


How to set Text Color, Size and style with Compose?


How to set Button height and width with Jetpack Compose?


Create User Registration & Login pages with Jetpack Compose Android studio


How to use Room database with Jetpack compose + MVVM


How to make Image transparency with jetpack compose?


How to create Row Layout with Jetpack Compose?


How to create Column Layout with Jetpack Compose?


Jetpack Compose How to download image from URL and set to imageview?


How to create Toast in jetpack compose ?


How to create Spannable text in Jetpack compose and make text selectable?


How to load html page with jetpack compose?


How to create navigation drawer with Jetpack compose?


Compose material design themes, How to set dark and Light theme with jetpack compose?


How to pass data between two activities with jetpack compose?


How to add Shimmer animation in Android using Jetpack compose?


How do i make Click events with Jetpack Compose


How do we change the Button color, text dynamically with Jetpack compose


How do u create Android Dropdown menu with jetpack compose


How to Create Expandable Listview with Jetpack compose - Expanded Listview


How to do i create FloatingActionButton in Jetpack Compose?


How do i create overflow menu (Popup Menu) in Jetpack compose


How to create swipe to refresh in Jetpack compose


How to pick image from gallery through jetpack compose in Android?


How to capture image from camera through jetpack compose in Android?


How to Integrate REST API with Jetpack compose in Android?


How do i display progress while loading url - Jetpack compose


How do i show number picker with Jetpack compose


How to show AudioPlayer in Jetpack Compose - Android Media Player to play music


Jetpack Compose Todo Application


Jetpack Compose Viewpager - Create Tablayout with Viewpager


How do i load GoogleMaps with Jetpack Compose


Jetpack Compose - How to Add Multiple Markers to Google Maps


Get Current Location from Google Maps While Moving with Jetpack Compose


Jetpack Compose - How do i draw Path(poly lines) between two locations On Google Maps


How to implement pagination in Jetpack compose?


Jetpack Compose TextField Focus Listener Events


How do i create Gridview with Jetpack compose


How to create bottom navigation with Jetpack compose?


How to create bottom sheet dialog with Jetpack Compose?


Building a Searchable List in Jetpack Compose with SearchView


How to show Snackbar using Jetpack compose


How to create Gradient Buttons in Jetpack Compose


How to create Swipe to Delete in Jetpack Compose


Charts in Jetpack compose - Create Line Chart with Jetpack compose


Charts in Jetpack compose - Create Pie Chart with Jetpack compose


Charts in Jetpack compose - Jetpack Compose Bar Chart Tutorial: Build Animated Charts with Code Examples


Jetpack Compose Listview - How to create Listview in Jetpack Compose with LazyColumn widget


How can i add margin to compose widgets?


Jetpack Compose Horizontal Listview with LazyRow Component


Jetpack Compose Listview OnItem Click Listener Events


How do I create Badge In Jetpack Compose application


How do I create Custom Shapes in Compose application?


Convert drawable to Bitmap in Android compose example


Jetpack Compose: Shaping Your UI with Clipping and Masking


Android Sudoku App Development: Tutorial, Source Code, Kotlin


Integrating AdMob in Android with Jetpack Compose


Jetpack Compose vs Flutter: A Comprehensive Comparison for Modern UI Development