Writing about development and technology.
Clicking a link opens the browser instead of your app? Master Android App Links (`assetlinks.json`), iOS Universal Links (`AASA`), and path handling with go_router.
Querying related data returns null? Fix common Foreign Key issues in Supabase and master the `select(*, related_table(*))` syntax. Deep dive into Many-to-Many and Inner Joins.
Data exists in DB but returns empty array in Flutter? It's RLS. Learn to write correct Row Level Security policies for SELECT, INSERT, and UPDATE.
Push works on Android but silent on iOS? Learn to fix APNs certificates, handle background messages, configure Notification Channels, and debug FCM integration errors.
App crashes only in Release mode? It's likely ProGuard/R8. Learn how to debug obfuscated stack traces, use `@Keep` annotations, and analyze `usage.txt`.
Why is my Hello World app 20MB? Learn to shrink your Flutter app size by optimizing images, removing unused resources, filtering ABIs, and using App Bundles.
Apple and Google reviewers are tough. Avoid rejection by fixing Test Account login issues, Privacy Policy gaps, IPv6 networking failures, and UGC content moderation policies.
Think Android is easier than iOS? Meet Gradle Hell. Learn to fix minSdkVersion conflicts, Multidex limit errors, Namespace issues in Gradle 8.0, and master dependency analysis with `./gradlew dependencies`.
Build failed overnight? Master CocoaPods dependency hell, Apple Silicon (arm64) conflicts, Code Signing, and Provisioning Profiles. Stop guessing and start fixing.
App freezes in the elevator? Build a robust offline experience using connectivity_plus, Hive caching, Optimistic UI updates, and Background Sync with WorkManager.
Stop forcing users to login every time. Learn how to implement seamless JWT Token Refresh using Dio Interceptors, request queuing, and silent retry logic.
App crashed with TypeError? Learn why 'Null is not a subtype of String' happens and how to make your JSON parsing bulletproof with Zod/Freezed.
Server down? Don't let the user stare at a spinner forever. Learn to set timeouts in http/Dio, implement Retry Logic, and handle errors gracefully.
Main screen loads before user settings are ready? Compare 3 strategies: Awaiting in main(), Splash Screen, and AppLoadingWidget.
Images failing to load? Learn to master `cached_network_image`, optimize memory cache, handle 404 errors gracefully, and debug SSL handshake issues.
Lost your scroll position after switching tabs? Discover PageStorage and PageStorageKey to save UI state without keeping widgets alive.
Page navigation cleared your data? Riverpod's autoDispose might be the culprit. Master caching with keepAlive, invalidate, and family modifiers.
Wrapped it in Provider, but still getting an error? Understand BuildContext and the Widget Tree ancestry to banish ProviderNotFoundException forever.
You called setState, but the screen ignored you. Understand Reference Equality and Immutability in Dart to fix silent UI update failures.
Why does the image reload when I just updated a counter? Fix flickering by avoiding Futures in build(), using const constructors, and AutomaticKeepAliveClientMixin.
