Bluetooth LE for Modern Android Development

on YouTube ↗38m

" summary

Practical checklist for BLE on Android: target at least API level 28 (API 31 adds companion device service), use CompanionDeviceManager for pairing/background permissions, wrap callbacks into Kotlin coroutines Flow and guard all GATT calls with a mutex plus a timeout so only one GATT operation is in flight, split read and write into separate characteristics, enable notifications by calling setCharacteristicNotification and then writing the CCC descriptor, assume ~20–21 byte payloads, and consider PHY options (LE 1M/2M/coded S2/S8) to trade throughput for range.

AI-written summary · about

" chapters (11)

1. 0:00Introduction and house analogy
2. 3:33Bluetooth standards challenges
3. 4:39Bluetooth basics GAP and GATT
4. 14:38Android Bluetooth versions
5. 16:01Companion device manager
6. 20:32Connecting to GATT devices
7. 22:40Bluetooth GATT callbacks
8. 28:16Notifications in Bluetooth
9. 30:20Bluetooth 5 PHY options
10. 36:20Companion device service
11. 37:05Key takeaways and conclusion

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