Scanning for BLE devices on Android 8+ in the background

Question

I'm using the following method from BLE scanner API on Android 8+ to scan for BLE Beacons

startScan(List<ScanFilter> filters, ScanSettings settings, 
PendingIntent callbackIntent)

The problem is that after sometimes I can see Scan Logs but nothing is delivered by the callbackIntent any idea why is this happening?

use https://github.com/Polidea/RxAndroidBle for get better result — Zafer Celaloglu, Oct 12 '18 at 11:21
There's also https://github.com/AltBeacon/android-beacon-library for this specific use case — mirh, Jun 17 '19 at 22:20

score 2 · Answer 1 · answered Mar 17 '19 at 12:46

2

This is the expected behavior on Android 8+. if you need to scan continuously a periodic mechanism is needed in this case. For more information about scanning on different Android versions and different ways. Have a look here

answered Mar 17 '19 at 12:46

Metwalli

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Well if you have a Foreground Service the restrictions you link to do not apply anymore. – Emil Mar 17 '19 at 14:10
As I said it is for background scanning. Not all use cases require a foreground service which was our case. – Metwalli Mar 17 '19 at 20:59

Scanning for BLE devices on Android 8+ in the background

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