The FitbitGatt API is designed to provide a strong state machine around all Android gatt operations with the aim of making Android BLE development across Android vendors as straightforward and side-effect free as possible.
License: Mozilla Public License 2.0
Describe the bug
I have a simple BLE device that begins advertising data immediately after being turned on. I am attempting to write an Android app that can detect and parse that advertisement. Following the instructions found in the README I was able to:
My application is never notified of characteristic changes. Did I overlook anything in my setup?
override fun onStart() {
super.onStart()
fitGatt.registerGattEventListener(this)
fitGatt.clientCallback
fitGatt.startGattServer(this)
}
override fun onGattServerStarted(serverConnection: GattServerConnection?) {
fitGatt.addDeviceNameScanFilter("EXAMPLE_DEVICE_NAME")
fitGatt.startPeriodicScan(this);
}
override fun onBluetoothPeripheralDiscovered(connection: GattConnection?) {
fitGatt.cancelScan(this)
// Connect
connection.runTx(GattConnectTransaction(connection, GattState.CONNECTED)) { connResult ->
// Discover services / characteristic
connection.runTx(GattClientDiscoverServicesTransaction(connection, GattState.DISCOVERY_SUCCESS)) { discResult ->
val service = discResult.services.find { it.uuid == UUID.fromString("EXAMPLE_SERVICE_UUID") }
val characteristic = service?.characteristics?.find { it.uuid == UUID.fromString("EXAMPLE_CHARACTERISTIC_UUID") }
if (characteristic == null) return@runTx
// Confirmed that this characteristic has the "notify" property.
// Subscribe
connection.runTx(SubscribeToCharacteristicNotificationsTransaction(connection, GattState.ENABLE_CHARACTERISTIC_NOTIFICATION_SUCCESS, characteristic)) {
// All done?
}
}
}
connection.registerConnectionEventListener(object: ConnectionEventListener {
override fun onClientCharacteristicChanged(result: TransactionResult, connection: GattConnection) {
// Never being called.
}
...
})
}
Expected behavior
The ConnectionEventListener should be notified every time my app detects a new advertisement from the subscribed characteristic.
Peripheral:
Samico ADF-B06 Pulse Oximeter
Smartphone:
Can you clarify how to add your project as Gradle dependency?
Describe the bug
I am trying to connect to a BLE thermometer that has an "indicate" characteristic. When running my app with the debugger attached everything works perfectly. I can connect to the device, discover services, subscribe to the characteristic, get updates, etc. But anytime I run my app without the debugger my device connection is always severed after 2-3 seconds. The logs call out a GATT_INSUF_AUTHORIZATION error.
Here are logs from the setup process:
22:40:54.132 17493-17493 D/PeripheralScanner: Start High priority Scan
22:40:54.132 17493-17493 V/PeripheralScanner: Scan filter's size: 5
22:40:54.132 17493-17493 D/BluetoothAdapter: isLeEnabled(): ON
22:40:54.133 17493-17521 D/BluetoothLeScanner: onScannerRegistered() - status=0 scannerId=9 mScannerId=0
22:40:54.136 17493-17493 V/PeripheralScanner: Starting scan, scan count in this 120000 ms is 1
22:40:54.136 17493-17493 I/FitbitGatt: On scan status changed true
22:41:00.439 17493-17493 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -51, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Received transaction: GattConnectTransaction
22:41:00.441 17493-17554 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -51, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State DISCONNECTED, Success State CONNECTED
22:41:00.443 17493-17554 W/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -51, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] While this instance isn't in the cache, there is already a connection in the queue, please be careful not to create too many client_ifs #developerlove.
22:41:00.444 17493-17554 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -51, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Android BluetoothGatt was null, start a new Android BluetoothGatt instance connect to device
22:41:00.446 17493-17554 D/BluetoothGatt: connect() - device: D0:5F:B8:51:5A:E7, auto: false
22:41:00.446 17493-17554 D/BluetoothGatt: registerApp()
22:41:00.447 17493-17554 D/BluetoothGatt: registerApp() - UUID=c4c51102-4042-4d2a-add8-43a6e0531588
22:41:00.451 17493-17521 D/BluetoothGatt: onClientRegistered() - status=0 clientIf=10
22:41:00.791 17493-17521 D/BluetoothGatt: onClientConnectionState() - status=133 clientIf=10 device=D0:5F:B8:51:5A:E7
22:41:00.795 17493-17521 V/GattClientCallback: [TEMP] onConnectionStateChange: Gatt Response Status GATT_ERROR
22:41:00.797 17493-17521 D/GattClientCallback: [TEMP][Threading] Originally called on thread : Binder:17493_3
22:41:00.799 17493-17521 D/GattClientCallback: [TEMP]Connection state: Not-Connected
22:41:00.801 17493-17521 I/GattClientCallback: [TEMP] The connection state may have changed in error
22:41:00.804 17493-17521 D/GattClientCallback: [TEMP] Disconnection reason: GATT_CONN_UNKNOWN
22:41:00.806 17493-17521 W/GattClientCallback: [TEMP] disconnected, waiting 1000ms for full disconnection
22:41:00.806 17493-17521 D/BluetoothGatt: cancelOpen() - device: D0:5F:B8:51:5A:E7
22:41:01.850 17493-17552 D/BluetoothGatt: close()
22:41:01.850 17493-17552 D/BluetoothGatt: unregisterApp() - mClientIf=10
22:41:01.855 17493-17552 I/GattClientCallback: [TEMP] Full disconnection
22:41:01.859 17493-17552 W/GattTransaction: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] The transaction GattConnectTransaction failed, Result: Transaction Name: GattConnectTransaction, Gatt State: DISCONNECTED - State Type: IDLE, Transaction Result Status: FAILURE, Response Status: GATT_SUCCESS, rssi: -60, mtu: 0, Characteristic UUID: null, Service UUID: null, Descriptor UUID: null, Data: null, Offset: 0, txPhy: 1, rxPhy: 1, transaction results: []
22:41:01.861 17493-17552 W/GattTransaction: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Halting the execution chain because tx GattConnectTransaction failed
22:41:01.900 17493-17493 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Received transaction: GattConnectTransaction
22:41:01.902 17493-17554 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State DISCONNECTED, Success State CONNECTED
22:41:01.904 17493-17554 W/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] While this instance isn't in the cache, there is already a connection in the queue, please be careful not to create too many client_ifs #developerlove.
22:41:01.905 17493-17554 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Android BluetoothGatt was null, start a new Android BluetoothGatt instance connect to device
22:41:01.906 17493-17554 D/BluetoothGatt: connect() - device: D0:5F:B8:51:5A:E7, auto: false
22:41:01.906 17493-17554 D/BluetoothGatt: registerApp()
22:41:01.907 17493-17554 D/BluetoothGatt: registerApp() - UUID=fa45b741-369e-4285-a20c-95fc8b0724e9
22:41:01.911 17493-17521 D/BluetoothGatt: onClientRegistered() - status=0 clientIf=10
22:41:02.044 17493-17521 D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=10 device=D0:5F:B8:51:5A:E7
22:41:02.048 17493-17493 I/LowEnergyAclListener: BT change received !
22:41:02.049 17493-17521 V/GattClientCallback: [TEMP] onConnectionStateChange: Gatt Response Status GATT_SUCCESS
22:41:02.051 17493-17493 I/LowEnergyAclListener: TEMP Device is now connected
22:41:02.051 17493-17521 D/GattClientCallback: [TEMP][Threading] Originally called on thread : Binder:17493_3
22:41:02.053 17493-17521 D/GattClientCallback: [TEMP]Connection state: Connected
22:41:02.055 17493-17552 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Received transaction: GattClientDiscoverServices
22:41:02.056 17493-17554 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State IDLE, Success State DISCOVERY_SUCCESS
22:41:02.056 17493-17554 D/BluetoothGatt: discoverServices() - device: D0:5F:B8:51:5A:E7
22:41:02.570 17493-17521 D/BluetoothGatt: onConnectionUpdated() - Device=D0:5F:B8:51:5A:E7 interval=78 latency=0 timeout=600 status=0
22:41:03.739 17493-17521 D/BluetoothGatt: onConnectionUpdated() - Device=D0:5F:B8:51:5A:E7 interval=6 latency=0 timeout=500 status=0
22:41:04.133 17493-17521 D/BluetoothGatt: onSearchComplete() = Device=D0:5F:B8:51:5A:E7 Status=0
22:41:04.135 17493-17521 V/GattClientCallback: [TEMP] onServicesDiscovered: Gatt Response Status GATT_SUCCESS
22:41:04.136 17493-17521 D/GattClientCallback: [TEMP][Threading] Originally called on thread : Binder:17493_3
22:41:04.137 17493-17552 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Received transaction: CompositeClientTransaction
22:41:04.138 17493-17554 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State IDLE, Success State IDLE
22:41:04.138 17493-17554 I/TransactionQueueController: Implicitly restarting queue
22:41:04.138 17493-17554 V/TransactionQueueController: Starting execution thread
22:41:04.140 17493-17635 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State IDLE, Success State ENABLE_CHARACTERISTIC_NOTIFICATION_SUCCESS
22:41:04.141 17493-17635 D/BluetoothGatt: setCharacteristicNotification() - uuid: 00002a1c-0000-1000-8000-00805f9b34fb enable: true
22:41:04.144 17493-17635 V/SubscribeToCharacteristicNotificationsTransaction: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Notification success on 00002a1c-0000-1000-8000-00805f9b34fb
22:41:04.144 17493-17635 V/StrategyProvider: The current device has properties: AndroidDevice[Google, Pixel 4a (5G), 30, bramble, google, bramble]
22:41:04.145 17493-17635 D/StrategyProvider: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Target android device does not match, no need for strategy
22:41:04.146 17493-17493 V/CompositeClientTransaction: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Transaction result: Transaction Name: SubscribeToCharacteristicNotificationsTransaction, Gatt State: ENABLE_CHARACTERISTIC_NOTIFICATION_SUCCESS - State Type: IDLE, Transaction Result Status: SUCCESS, Response Status: GATT_SUCCESS, rssi: 0, mtu: 0, Characteristic UUID: 00002a1c-0000-1000-8000-00805f9b34fb, Service UUID: 00001809-0000-1000-8000-00805f9b34fb, Descriptor UUID: null, Data: null, Offset: 0, txPhy: 1, rxPhy: 1, transaction results: []
22:41:04.147 17493-17635 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State IDLE, Success State WRITE_DESCRIPTOR_SUCCESS
22:41:04.168 17493-17521 V/GattClientCallback: [TEMP] onDescriptorWrite: Gatt Response Status GATT_SUCCESS
22:41:04.170 17493-17521 D/GattClientCallback: [TEMP][Threading] Originally called on thread : Binder:17493_3
22:41:04.173 17493-17552 V/CompositeClientTransaction: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Transaction result: Transaction Name: WriteGattDescriptorTransaction, Gatt State: WRITE_DESCRIPTOR_SUCCESS - State Type: IDLE, Transaction Result Status: SUCCESS, Response Status: GATT_SUCCESS, rssi: -60, mtu: 0, Characteristic UUID: null, Service UUID: null, Descriptor UUID: 00002902-0000-1000-8000-00805f9b34fb, Data: null, Offset: 0, txPhy: 1, rxPhy: 1, transaction results: []
22:41:04.174 17493-17552 D/CompositeClientTransaction: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Finished running all transactions successfully, last result: Transaction Name: WriteGattDescriptorTransaction, Gatt State: WRITE_DESCRIPTOR_SUCCESS - State Type: IDLE, Transaction Result Status: SUCCESS, Response Status: GATT_SUCCESS, rssi: -60, mtu: 0, Characteristic UUID: null, Service UUID: null, Descriptor UUID: 00002902-0000-1000-8000-00805f9b34fb, Data: null, Offset: 0, txPhy: 1, rxPhy: 1, transaction results: []
22:41:04.176 17493-17552 V/TransactionQueueController: Stopping execution thread
22:41:04.177 17493-17552 V/GattClientTransaction: [TEMP] onDescriptorWrite not handled in tx: CompositeClientTransaction
22:41:04.178 17493-17635 D/GattTransaction: Transaction was interrupted while waiting for result, re-interrupting thread : CompositeClientTransaction
22:41:04.178 17493-17635 V/CompositeClientTransaction: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -60, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Transaction Transaction Name: SubscribeToCharacteristicNotificationsTransaction, Gatt State: ENABLE_CHARACTERISTIC_NOTIFICATION_SUCCESS - State Type: IDLE, Transaction Result Status: SUCCESS, Response Status: GATT_SUCCESS, rssi: 0, mtu: 0, Characteristic UUID: 00002a1c-0000-1000-8000-00805f9b34fb, Service UUID: 00001809-0000-1000-8000-00805f9b34fb, Descriptor UUID: null, Data: null, Offset: 0, txPhy: 1, rxPhy: 1, transaction results: [] was successful, moving on to index: 1
22:41:04.178 17493-17635 I/TransactionQueueController$ClientThread: Thread was stopped
22:41:04.224 17493-17521 D/BluetoothGatt: onConnectionUpdated() - Device=D0:5F:B8:51:5A:E7 interval=78 latency=0 timeout=600 status=0
And here are logs when the connection is lost:
22:41:10.234 17493-17636 D/BluetoothGatt: onClientConnectionState() - status=8 clientIf=10 device=D0:5F:B8:51:5A:E7
22:41:10.236 17493-17636 V/GattClientCallback: [TEMP] onConnectionStateChange: Gatt Response Status GATT_INSUF_AUTHORIZATION
22:41:10.238 17493-17636 D/GattClientCallback: [TEMP][Threading] Originally called on thread : Binder:17493_5
22:41:10.241 17493-17636 D/GattClientCallback: [TEMP]Connection state: Not-Connected
22:41:10.242 17493-17636 I/GattClientCallback: [TEMP] The connection state may have changed in error
22:41:10.242 17493-17493 I/LowEnergyAclListener: BT change received !
22:41:10.243 17493-17493 I/LowEnergyAclListener: TEMP Device is disconnected
22:41:10.244 17493-17493 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Received transaction: GattDisconnectionTransaction
22:41:10.244 17493-17636 D/GattClientCallback: [TEMP] Disconnection reason: GATT_CONN_UNKNOWN
22:41:10.245 17493-17554 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State IDLE, Success State DISCONNECTED
22:41:10.246 17493-17636 W/GattClientCallback: [TEMP] disconnected, waiting 1000ms for full disconnection
22:41:10.246 17493-17636 D/BluetoothGatt: cancelOpen() - device: D0:5F:B8:51:5A:E7
22:41:10.247 17493-17554 V/LowEnergyAclListener: Successful disconnection
22:41:10.247 17493-17554 I/LowEnergyAclListener: TEMP Notifying listeners of connection disconnected
22:41:10.307 17493-17493 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Received transaction: GattConnectTransaction
22:41:10.309 17493-17554 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State DISCONNECTED, Success State CONNECTED
22:41:10.309 17493-17554 W/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] While this instance isn't in the cache, there is already a connection in the queue, please be careful not to create too many client_ifs #developerlove.
22:41:10.310 17493-17554 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Android BluetoothGatt has been used before, using an existing Android BluetoothGatt instance to connect to device
22:41:10.458 17493-17636 D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=10 device=D0:5F:B8:51:5A:E7
22:41:10.460 17493-17493 I/LowEnergyAclListener: BT change received !
22:41:10.461 17493-17493 I/LowEnergyAclListener: TEMP Device is now connected
22:41:10.461 17493-17636 V/GattClientCallback: [TEMP] onConnectionStateChange: Gatt Response Status GATT_SUCCESS
22:41:10.462 17493-17636 D/GattClientCallback: [TEMP][Threading] Originally called on thread : Binder:17493_5
22:41:10.463 17493-17636 D/GattClientCallback: [TEMP]Connection state: Connected
22:41:10.465 17493-17552 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Received transaction: GattClientDiscoverServices
22:41:10.467 17493-17554 V/GattStateTransitionValidator: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Current State IDLE, Success State DISCOVERY_SUCCESS
22:41:10.467 17493-17554 D/BluetoothGatt: discoverServices() - device: D0:5F:B8:51:5A:E7
22:41:10.954 17493-17636 D/BluetoothGatt: onConnectionUpdated() - Device=D0:5F:B8:51:5A:E7 interval=78 latency=0 timeout=600 status=0
22:41:11.288 17493-17552 D/BluetoothGatt: close()
22:41:11.288 17493-17552 D/BluetoothGatt: unregisterApp() - mClientIf=10
22:41:11.291 17493-17552 I/GattClientCallback: [TEMP] Full disconnection
22:41:11.293 17493-17552 V/GattClientTransaction: [TEMP] onPhyRead not handled in tx: GattClientDiscoverServices
22:41:12.320 17493-17493 I/LowEnergyAclListener: BT change received !
22:41:12.325 17493-17493 I/LowEnergyAclListener: TEMP Device is disconnected
22:41:12.326 17493-17493 V/GattConnection: [[FitbitBluetoothDevice Address: D0:5F:B8:51:5A:E7, Name: TEMP, Rssi: -61, Advertising Data: 02010603 02F0FF09 FF4248E7 5A51B85F D0051240 00500002 0A000509 54454D50 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000, Device Origin: SCANNED]] Received transaction: GattDisconnectionTransaction
To Reproduce
Steps to reproduce the behavior:
Expected behavior
The BLE device should remain connected until it is intentionally disconnected, turned off, or walks out of range.
Peripheral (please complete the following information):
Smartphone (please complete the following information):
Additional context
This seems to happen primarily on devices with "indicate" characteristics. In my testing, "notify" characteristics do not seem to be impacted.
Is your feature request related to a problem? Please describe.
If an app adds com.github.Fitbit:bitgatt as a dependency but does NOT add timber it will crash as soon as FitbitGatt attempts to setup.
Example build.gradle:
dependencies {
implementation 'com.github.Fitbit:bitgatt:0.9.2-RC4'
// No timber!
...
}
Example Crash:
2021-02-08 23:10:56.813 18446-18446/com.myapp.demo.debug E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.myapp.demo.debug, PID: 18446
java.lang.NoClassDefFoundError: Failed resolution of: Ltimber/log/Timber;
at com.fitbit.bluetooth.fbgatt.FitbitGatt.setup(FitbitGatt.java:161)
at com.fitbit.bluetooth.fbgatt.FitbitGatt.getInstance(FitbitGatt.java:146)
...
Caused by: java.lang.ClassNotFoundException: Didn't find class "timber.log.Timber" on path: DexPathList[[zip file "/data/app/~~buWpUy0wluCeKRNDidVUzA==/com.myapp.demo.debug-Zm3_EyFVTFzsRcNbP_PGQg==/base.apk"],nativeLibraryDirectories=[/data/app/~~buWpUy0wluCeKRNDidVUzA==/com.myapp.demo.debug-Zm3_EyFVTFzsRcNbP_PGQg==/lib/arm64, /system/lib64, /system_ext/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:207)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.fitbit.bluetooth.fbgatt.FitbitGatt.setup(FitbitGatt.java:161)
at com.fitbit.bluetooth.fbgatt.FitbitGatt.getInstance(FitbitGatt.java:146)
...
Describe the solution you'd like
Timber is a great logging library but, if it isn't too much trouble, it would be nice to not REQUIRE all apps that use FitbitGatt
to also use Timber.
Describe alternatives you've considered
N/A
Additional context
N/A
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