mobile-dev

Learn how to debug Unity objects with scripts that fail in Android builds. Fix 'UnitDatabase.Instance is NULL!' errors and disappearing objects with proper Gradle configuration and script execution order.

Complete guide to fixing orientation locking in React Native New Architecture. Custom implementations and alternative solutions for Android orientation control.

Learn how to fix the 'Cannot read property Host of undefined' error in React Navigation when using createNativeBottomTabNavigator. Includes migration guides and troubleshooting steps.

Learn how to calculate Stripe processing fees in Flutter when card country is unknown to ensure merchants receive exactly £10 while customers pay total amount including variable fees.

Step-by-step guide to starting Android applications and sending intents using ADB tools like adb shell am start. Covers setup, basic launches, data extras, troubleshooting for developers and testers.

Learn how to detect text changes in UITextField in iOS with immediate access to updated text. Explore delegate methods, notifications, and alternative approaches for real-time text handling.

Customize Expo Router swipe direction to mimic router.back() left-to-right animation on new screens using slide_from_left, gestureDirection: 'horizontal', and Stack options. Perfect for step-driven apps jumping to intermediary screens with intuitive back gestures.

Learn how to resolve Android installation errors using the android:installLocation manifest attribute to install apps on external storage.

Fix the 'Invoke-customs are only supported starting with Android 0 --min-api 26' error after updating Gradle build tools and Java compatibility in Android Studio.

Learn to use printf-style placeholders like %1$s in Android strings.xml for dynamic runtime substitution with getString(). Supports strings, ints, plurals, styling, and translations for robust apps.

Resolve NavHostController error in Jetpack Compose navigation with correct imports and dependency configuration.

Learn the differences between getContext(), getApplicationContext(), getBaseContext(), and 'this' in Android development. Understand when to use each context type to avoid memory leaks and crashes.

Learn how to convert hexadecimal color strings to Flutter Color objects. Explore manual methods, extensions, utility classes, and packages for flutter hex color implementation.

Step-by-step guide to set launcher icon for Android apps using Android Studio Image Asset Studio. Covers icon sizes (mdpi 48x48 to xxxhdpi 192x192), adaptive icons, densities, and manifest updates for perfect scaling across devices.

Troubleshoot Xcode archive menu disabled for Ad Hoc distribution. Learn to fix provisioning profile issues, refresh profiles, and resolve certificate mismatches.

Learn how to consistently set Android navigation bar color in Expo using expo-navigation-bar. Fix black on Redmi, dim gray on OnePlus with app.json config, runtime API, and EAS Build for uniform results across devices.

Learn to retrieve Android SDK version and API level programmatically using Build.VERSION.SDK_INT in Java and Kotlin. Includes runtime checks, compatibility table, and best practices for android sdk versions and android api levels.

Diagnose and resolve 'Raster Jank Detected' in Flutter SDK 3.29.3 showModalBottomSheet with transparent backgrounds. Use Flutter DevTools for timeline, raster thread analysis, and optimizations like RepaintBoundary for smooth performance.

Why Siri ignores AppShortcuts after force-quitting your iOS app and how to fix it with supportedModes=.any, AppShortcutsProvider, and background execution for voice commands when app isn't running.

Implement reliable Flutter animated splash screen with Lottie on Android 12+. Sync system launch screen, control animation timing using flutter_native_splash, installSplashScreen, and MethodChannel for smooth startup without premature playback or unresponsive taps.