Kai Koenig
where else to find them
github:TheRealAgentK
bluesky:agentk.bsky.social
mastodon:@AgentK@mastodon.social
x:agentK
linkedin:kaikoenig
speakerdeck:therealagentk
what they talk about
all 8 in the filters
where they keep going back
- droidcon Berlin3 editions2018–2024
- AndroidMakers by droidcon2 editions2019–2020
all 5 in the filters
on a stage with
never shared a talk
who talks about the same things
- Joyce Toh4 talks
- Enrique López Mañas22 talks
- David González14 talks
- Effie Barak14 talks
- Daniele Bonaldo13 talks
- Sebastiano Gottardo4 talks
| title | conference | date |
|---|---|---|
| SEQUEL SQL for Android Developers | droidcon Berlin 2024 | 2024-07-03 |
SQL is 50 years old and Android uses embedded SQLite (available since the early 2000s) with limits like concurrent reads but sequential writes, slower disk I/O… | ||
| Google's Play Billing Library 3 is out - is everything new and different again? | droidcon APAC 2020 | 2020-12-14 |
Google Play Billing Library 3 requires concrete changes: acknowledge purchases within 72 hours or Google auto-refunds, consume consumables with consumeAsync… | ||
| Mathematics for Developers | 360|AnDev 2020 | 2020-07-24 |
Explains which math actually maps to developer tasks: uses a rotation matrix 0 -1; 1 0 multiplied with vector (5,6) → (-6,5) to show a 90° rotation, compares… | ||
| Mathematics for Developers | Android Makers 2020 | 2020-04-20 |
Clear, actionable examples and concrete resources determine whether to watch: a worked rotation matrix with sine and cosine multiplies vector [5,6] to get… | ||
| A deep dive into | droidcon London 2019 | 2019-10-24 |
Pokémon Go hits $2 billion in 811 days to show in‑app billing works; Google Play Billing Library v2.0.3 is the concrete tool and wraps the system service via… | ||
| Taking your users’ money: In-app billing from start to best practices | droidCon Berlin 2019 | 2019-07-01 |
Covers Google Play Billing Library (v2/v3) and the Play Developer REST API, warns that the library requires you to supply SKU lists because there is no API to… | ||
| Taking your users’ money: In-app billing from start to best practices | Android Makers 2019 | 2019-04-23 |
Covers a concrete recipe: use the Google Play billing library (client + PurchasesUpdatedListener) and the Google Play Developer API to verify purchase tokens… | ||
| WHY A WHOLE COUNTRY SKIPPED A DAY: FUN WITH TIMEZONES AND LOCALES | droidcon Berlin 2018 | 2018-06-25 |
Shows concrete failures and fixes: Nintendo tournaments break when DST shifts; Android gets ICU4J only from Android 7 so timezone/locale behavior differs… | ||
| nothing matches | ||