Forcefully turning off BLE device connected to Android app fires onConnectionStateChange with status 8

Question

I have an Android app that uses the BLE API to connect to a BLE device. If I connect to the device and then turn off the power of the device after a few seconds I get this line in the logcat:

11-15 12:33:07.977 27829-27847/com.mycompany.platform.hellodev D/BluetoothGatt: onClientConnectionState() - status=8 clientIf=6 device=55:1C:6C:86:8A:F8

which then invokes our BluetoothGattCallback callback onConnectionStateChange with status=8 and newStatus=0

I can't find any public documentation that says what status=8 means.

Is it right to assume that if newStatus=0 is passed it means the BLE device has disconnected?

AAnkit · Answer 1 · 2016-04-29T16:06:53.160

8

I can't find any public documentation that says what status=8 means.

It means that you lost the connection link(LINK_LOSS) due to no response from remote device or Timeout happened.

Is it right to assume that if newStatus=0 is passed it means the BLE device has disconnected?

Yes if newStatus is 0, means CONNECTION state is idle, and device is now disconnected.

edited Apr 29 '16 at 16:06

answered Nov 17 '15 at 22:25

AAnkit

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Can you confirm this is the case with status 8? surprisingly this only appears API version > 19. – Nowa Concordia Nov 21 '15 at 03:48
@NowaConcordia Absolutely, its loss of connection link(generally known as link loss). – AAnkit Nov 24 '15 at 22:25
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Thank you Ankit for sharing about status 8. – Paresh Mayani Apr 29 '16 at 11:06
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@AAnkit do you have an official source that verifies your claim? Thanks! – stkent Mar 01 '17 at 16:20

Forcefully turning off BLE device connected to Android app fires onConnectionStateChange with status 8

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