<CarlosDev/>
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<CarlosDev/>

Notes

25entriesRSS

Field notes, long-form articles, manuals, and decision records — written while building, kept current or explicitly marked stale.

Article

Android 13: notification and media permissions

API 33, August 2022. Notifications became a runtime permission, READ_EXTERNAL_STORAGE split into three media permissions, and a system photo picker needs no permission at all.

16 min read6 partsPart 15 of 19 · Android, version by version

Android 13 Tiramisu banner, with the version logo.

Article

Android 14: typed services, selected photos

API 34, October 2023. Apps targeting below 23 stopped installing, users could share only the photos they picked, and every foreground service needed a declared type.

18 min read7 partsPart 16 of 19 · Android, version by version

Android 14 Upside Down Cake banner, with the version logo.

Article

Android 15: edge-to-edge, private space

API 35, October 2024. Apps targeting 35 draw edge-to-edge, dataSync services get six hours a day, private space hides apps behind a lock, and native code must handle 16 KB pages.

19 min read6 partsPart 17 of 19 · Android, version by version

Android 15 Vanilla Ice Cream banner, with the version logo.

Article

8 GoF patterns that decide if your Android app scales

Eight Gang-of-Four patterns that decide whether an Android app scales — the pattern, the problem it solves, and the Kotlin that makes it click.

23 min read4 parts

Eight Gang-of-Four patterns mapped to Android architecture concerns.

Article

Remote Compose: server-driven UI on Android

Google's first-party server-driven UI for Android — a serialized document built on the JVM and rendered by an on-device player, and how it differs from JSON SDUI.

11 min read

Remote Compose banner — a serialized Compose document rendered by an on-device player.