Best of Mobile Development — February 2026

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    Article
    Avatar of ezh33lu6a37km1sfscwixVladislav Siumbeli·16w

    Deploying my Expo apps to Google Play — lessons learned

    Deploying Expo apps to Google Play is mostly straightforward with minimal code changes required. Key challenges include adjusting font sizes for Android's rendering differences using a platform-specific scaling function, configuring keystores and Firebase integration with google-services.json, and finding testers through communities like Reddit and specialized testing apps. The Google Play review process proved smoother than iOS, with Firebase automatically handling Google Authentication setup for connected projects.

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    Article
    Avatar of dartdevsDart Developers·15w

    Flutter ScreenUtil: Mastering Responsive Font Sizing Across All Devices

    A Flutter developer encountered broken text layouts when their app was displayed on tablets after testing only on phones. The solution involves using the fontSizeResolver parameter in ScreenUtil library to ensure fonts scale properly across different device sizes and screen densities.

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    Article
    Avatar of daily_updatesdaily.dev Changelog·15w

    New Icon. New Vibe. New You.

    daily.dev introduces an App Icon Picker feature for iOS users, allowing developers to customize their app icon from multiple design options. Users can swap icons anytime through the app settings to match their aesthetic preferences. Android support is not yet available.

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    Video
    Avatar of philipplacknerPhilipp Lackner·14w

    Learning THIS Becomes More Important Than Ever In the Era of AI

    As AI becomes better at writing boilerplate code, solving well-defined problems, and reviewing logic, developers need to shift from a 'bricklayer' mindset to an 'entrepreneurial' one. The skills that matter most going forward are system design and architecture (which require deep organizational context AI can't replicate), deep technical understanding for reviewing AI-generated code, and hands-on experience actually using AI tools and agents in practice. Mobile developers in particular are encouraged to start experimenting with AI in their IDEs, refine their prompting skills, and treat AI as a fast execution layer they supervise rather than a replacement for engineering judgment.

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    Article
    Avatar of whitespectreWhitespectre·16w

    Debunking React Native Myths: Why Expo is Now Our Go-To (Even for Complex Projects)

    Expo has evolved from a beginner-focused React Native framework into a robust platform capable of handling complex, production-ready mobile applications. Modern Expo supports advanced native features through the Modules API, custom development clients, and config plugins. It offers first-class support for the new React Native architecture (Fabric and TurboModules), comprehensive customization options, and streamlined deployment through Expo Application Services (EAS). The framework now eliminates the need for extensive native platform expertise while maintaining performance and flexibility. Bare React Native remains relevant primarily for existing codebases or projects with nonstandard build requirements.

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    Article
    Avatar of whitespectreWhitespectre·16w

    FlashList vs. FlatList: Understanding the Key Differences for React Native Performance

    FlashList offers significant performance improvements over FlatList for complex React Native lists through cell recycling instead of virtualization. In a real-world project with nested lists and animations, switching to FlashList and optimizing properties like estimatedItemSize, getItemType, and overrideItemLayout resulted in 54% FPS improvement (36.9 to 56.9), 82% CPU reduction, and eliminated out-of-memory crashes on low-end Android devices. The article provides practical implementation tips including data reorganization and proper configuration strategies.

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    Article
    Avatar of androiddevAndroid Developers Blog·14w

    Prepare your app for the resizability and orientation changes in Android 17

    Android 17 removes the developer opt-out for orientation and resizability restrictions on large screens (>600dp). Apps targeting API level 37 must adapt to various display sizes and orientations, with manifest attributes like screenOrientation and maxAspectRatio being ignored. The post provides practical solutions for common issues including camera preview distortion (using CameraX or CameraViewfinder), stretched UI elements (using widthIn modifiers), inaccessible buttons (adding vertical scrolling), and state preservation during configuration changes. Google Play will require API level 37 targeting by August 2027.

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    Video
    Avatar of asaprogrammerAs a Programmer·12w

    React Native Video Calling App Tutorial 2026

    A comprehensive tutorial for building a full-featured video calling study app using React Native and Expo SDK 55. Covers project setup from scratch, NativeWind (Tailwind for React Native) integration, authentication with Clerk (Google, Apple, GitHub), real-time chat and video calls via Stream, and error monitoring with Sentry. Also includes a detailed breakdown of Expo SDK 55 changes: removal of legacy architecture, native tabs as default, faster OTA updates via bytecode diffing, new native UI features, and iOS widgets in alpha. All tools used offer free tiers, no credit card required.

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