Reproducible
engineering
experiments

Implement MaterialDatePicker in Android using Kotlin: build birthdate pickers, set DateValidator constraints, handle UTC timestamps, and style themes.

Add vector icons to Android TextView using compound drawables: master drawableStart, drawablePadding, tint colors, and programmatic Kotlin APIs.

Create equal width or height buttons in Android LinearLayout: master layout_weight=1, set layout_width=0dp, and build responsive UI layouts in XML.

Fix ADB INSTALL_FAILED_TEST_ONLY installation errors in Android: use adb install -t flag, disable android:testOnly in AndroidManifest.xml, or update Gradle.

Debug Android Fragment lifecycle crashes, IllegalStateException, and state loss: master FragmentManager.enableDebugLogging(), FragmentStrictMode, and callbacks.

Enable ALOGV verbose native logs in Android C/C++ HAL layers: set LOG_NDEBUG 0, configure setprop log.tag.<TAG> VERBOSE, and inspect Android Logcat.

Creating launcher icons for Android applications can be a repetitive task, especially if you’re handling multiple resolutions. … Read more

Configure immersive fullscreen Android activities: hide status bar and navigation bar using WindowInsetsControllerCompat in Kotlin and AndroidThemes XML.

Add custom borders and rounded corners to Android TextViews: create shape XML drawables with <stroke>, <solid>, and <corners> tags.