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An Android launcher icon is a layered resource, not a pre-cropped rounded PNG. Build separate foreground, background, and monochrome artwork, let the launcher apply its mask and tint, and keep the Google Play listing asset separate.
`FLAG_SECURE` asks Android to keep a window out of screenshots and non-secure displays. Apply it before sensitive UI appears, understand its window-wide scope, and treat newer detection and screen-share APIs as complementary—not interchangeable—controls.
Creating an Android library module is the easy click. Making its AAR safe for another app requires a deliberate API, resource and manifest hygiene, consumer shrinker rules, compatibility metadata, tests, and a distribution path that preserves dependencies.
A library module can depend on another module with one Gradle project dependency. The important design choice is whether the dependency remains an implementation detail or becomes part of your public API—and how that relationship survives publication.
This dex error usually means a module or dependency emits Java 8 invocation bytecode without compatible desugaring. First configure the module correctly; if the failing code calls MethodHandle.invoke, use the API-26-safe path instead of masking the problem.
A precompiled AAR can be linked directly from an app module, but the file carries no Maven dependency metadata. Here is the clean Gradle setup, plus the checks that prevent missing classes, resource conflicts, native ABI surprises, and release-only failures.
A PopupMenu temporarily owns window focus, so Android may reveal system bars. Use the current WindowInsets controller, track whether fullscreen remains desired, and restore bars only after focus returns or the popup is dismissed—without fighting system gestures or accessibility.
A connected Wi-Fi or cellular network is not proof that your server is reachable. Observe Android’s default network and capabilities, expose conservative UI state, and let each request handle DNS, TLS, timeout, authentication, and server failures independently.
A synthetic ADB broadcast can test receiver routing, but it does not reproduce a complete reboot. Build a minimal boot receiver, enqueue durable work, respect user-unlock and background limits, and verify both explicit broadcasts and genuine device boots.
