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You are a reporter for a major world newspaper. Write your response as if you were writing a short, high-quality news article for your paper. Limit your response to one paragraph. Use the following article for context: Jetpack Compose Extends Transitions and Animations, and Improves Performance - InfoQ<link rel="stylesheet" type="text/css" href="https://cdn.infoq.com/statics_s1_20240516084101/styles/style_en.css"/> <link rel="stylesheet" href="https://cdn.infoq.com/statics_s1_20240516084101/styles/icons.css"> <link rel="stylesheet" type="text/css" media="screen" href="https://cdn.infoq.com/statics_s1_20240516084101/styles/style_extra.css"/><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-W9GJ5DL" height="0" width="0" style="display:none;visibility:hidden"></iframe>BTInfoQ Software Architects' NewsletterA monthly overview of things you need to know as an architect or aspiring architects.View an exampleEnter your e-mail addressSelect your countrySelect a countryI consent to InfoQ.com handling my data as explained in thisPrivacy Notice.We protect your privacy.CloseToggle NavigationFacilitating the Spread of Knowledge and Innovation in Professional Software DevelopmentEnglish editionEnglish editionChinese editionJapanese editionFrench editionWrite for InfoQSearchSign Up / LoginEmailPasswordForgot password ?InfoQ Account EmailBack to loginResend ActivationBack to loginLogin with:GoogleMicrosoftTwitterFacebookDon't have an InfoQ account?Sign UpLogo - Back to homepageNewsArticlesPresentationsPodcastsGuidesTopicsDevelopmentJavaKotlin.NetC#SwiftGoRustJavaScriptFeatured in DevelopmentHow to Use Multiple GitHub AccountsGit is a popular tool for version control in software development. 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Subscribe for free.InfoQ HomepageNewsJetpack Compose Extends Transitions and Animations, and Improves PerformanceMobileJetpack Compose Extends Transitions and Animations, and Improves PerformanceLikeBookmarksMay 17, 20242 min readbySergio De SimoneWrite for InfoQFeed your curiosity.Help 550k+ globalsenior developerseach month stay ahead.Get in touchThelatest release of Jetpack Compose, announced atGoogle I/O 2024, brings several extensions, including support for shared element transitions, lazy list item animations, improved performance, and more.Shared element transitions allow you to create transitions between screens that have common elements. An example of their use is navigating from a listing to a detail view where an image shown in the listing seamlessly transitions into the detail view.Shared elements can be used through a few high-level APIs to create aSharedTransitionScopeand wrap theAnimatedContentinto aSharedTransitionLayout. Then you useModifier.sharedElement()andModifier.sharedBounds()to specify the composables that should be animated and the transition bounds. Composables to match between screens are identified in a very simple way through their associated keys.Lists including lazy items and columns may be now animated automatically when inserting, removing and reordering items. This is accomplished easily by adding them theModifier.animateItemmodifier. This will automatically manage fade-in and fade-out animations as shown in the following images.(image courtesy of Google)Another useful new feature in Jetpack Compose June 2024 is support for lazy flow layouts that render only the content that actually fits within the screen bounds. This functionality is provided throughContextualFlowRowandContextualFlowColumn. Lazy flow layouts are useful when dealing with large numbers of items, which are rendered only partially to optimize performance and resource utilization. This is different from traditional flow layouts, which compose all items regardless of their visibility.On the performance front, Jetpack improves by 17% the "time to first pixel" benchmark, as well as scroll performance. In both cases, just rebuilding your app will increase performance, although the changes to the API used in scrolling could require somecode changes. Another factor contributing to Jetpack Compose improved performance is the adoption of a more efficient data structure to implement the slot table and more efficient detection and removal of unused composition groups.On the library ecosystem side, this release of Jetpack Compose brings atypesafe navigation componentbased on Kotlin Serialization that enables defining navigation graphs using a Kotlin DSL. The new navigation component relieves developers from having to keep track of string routes, manually manage arguments and their types, and do string interpolation, Google says.As a final note, Jetpack Compose also includes now aCompose-only CameraX componentproviding a newViewfindercomposable to display a camera preview that always shows the correct aspect ratio and rotation, taking into account the window size, the display orientation, and so on.About the AuthorSergio De SimoneShow moreShow lessRate this ArticleAdoptionStyleAuthor ContactedThis content is in theMobiletopicRelated Topics:DevelopmentGoogleGUIAndroidJetpack ComposeMobileRelated EditorialRelated Sponsored ContentPopular across InfoQPolyglot Programming with WebAssembly: A Practical ApproachHow to Build and Foster High-Performing Software Teams: Experiences from Engineering ManagersMeta Releases Llama 3 Open-Source LLMIf LLMs Do the Easy Programming Tasks - How are Junior Developers Trained? 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Flutter is an open-source UI software development kit created by Google, enabling developers to build natively compiled applications for mobile, web, and desktop from a single codebase. Released in 2017, Flutter uses the Dart programming language and provides a rich set of pre-designed widgets and tools to help developers craft visually appealing and highly performant user interfaces. The platform is known for its fast development cycles, expressive UIs, and native performance. One of Flutter's key features is its "hot reload" functionality, which allows developers to see code changes in real-time without having to restart the application, thereby accelerating the development process. Flutter's growing popularity is attributed to its versatility, ease of use, and robust community support, making it a favored choice for both startups and established companies looking to streamline their app development efforts.