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chipweinberger / flutter_blue_plus

Flutter plugin for connecting and communicationg with Bluetooth Low Energy devices, on Android, iOS, macOS
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[Help]: `connectionState.listen(...)` causes value to be re-emitted #1033

Closed CallMeBossC closed 1 week ago

CallMeBossC commented 1 week ago

Requirements

Have you checked this problem on the example app?

No

FlutterBluePlus Version

1.26.0

Flutter Version

3.9.12

What OS?

Android, All

OS Version

HarmonyOs4.2.0

Bluetooth Module

Not sure

What is your problem?

I use a Huawei phone to connect to a Bluetooth low energy device. I will subscribe to the device's status stream every time I connect. Whenever the connection is unsuccessful and I retry multiple connections, connectionState will return repeated device status, although I cancel the subscription to the connectionState stream after each connection.

Logs

I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): startAdvertising is called
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet, calling package name = com.mesh.easysmart
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet and gatt is: android.bluetooth.IBluetoothGatt$Stub$Proxy@1b64e69 and callback is: android.bluetooth.le.BluetoothLeAdvertiser$1@b3ff8f0
I/flutter (21284): printf_message:  _scanSubscription.cancel() LateInitializationError: Field '_scanSubscription@1917439335' has not been initialized.;
I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): stopAdvertisingSet, calling package name = com.mesh.easysmart callback = android.bluetooth.le.BluetoothLeAdvertiser$1@b3ff8f0
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertising is called
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet, calling package name = com.mesh.easysmart
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet and gatt is: android.bluetooth.IBluetoothGatt$Stub$Proxy@f31cdfa and callback is: android.bluetooth.le.BluetoothLeAdvertiser$1@8dc6825
D/BluetoothLeScanner(21284): onScannerRegistered() - status=0 scannerId=16 mScannerId=0
I/BluetoothLeAdvertiser(21284): advertise stopped and remove callback: android.bluetooth.le.BluetoothLeAdvertiser$1@b3ff8f0
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothDevice(21284): get remote device name: smart lamp
I/BluetoothDevice(21284): get remote device name: null
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): stopAdvertisingSet, calling package name = com.mesh.easysmart callback = android.bluetooth.le.BluetoothLeAdvertiser$1@8dc6825
I/BluetoothLeAdvertiser(21284): startAdvertising is called
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet, calling package name = com.mesh.easysmart
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): advertise stopped and remove callback: android.bluetooth.le.BluetoothLeAdvertiser$1@8dc6825
I/BluetoothLeAdvertiser(21284): startAdvertisingSet and gatt is: android.bluetooth.IBluetoothGatt$Stub$Proxy@1a2119e and callback is: android.bluetooth.le.BluetoothLeAdvertiser$1@6c2a3d9
I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): stopAdvertisingSet, calling package name = com.mesh.easysmart callback = android.bluetooth.le.BluetoothLeAdvertiser$1@6c2a3d9
I/BluetoothLeAdvertiser(21284): startAdvertising is called
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet, calling package name = com.mesh.easysmart
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): advertise stopped and remove callback: android.bluetooth.le.BluetoothLeAdvertiser$1@6c2a3d9
I/BluetoothLeAdvertiser(21284): startAdvertisingSet and gatt is: android.bluetooth.IBluetoothGatt$Stub$Proxy@fea5c4c and callback is: android.bluetooth.le.BluetoothLeAdvertiser$1@193d47f
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/BluetoothDevice(21284): connectGatt: callingPid=21284 callingUid=10394
I/BluetoothDevice(21284): callingApp=com.mesh.easysmart
D/BluetoothGatt(21284): connect() - device: FF:FF:**:**:**:FF, auto: false
D/BluetoothGatt(21284): registerApp()
D/BluetoothGatt(21284): registerApp() - UUID=76978404-b2ef-44c3-8303-ff4e1c3e3782
D/BluetoothGatt(21284): onClientRegistered() - status=0 clientIf=16
I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): stopAdvertisingSet, calling package name = com.mesh.easysmart callback = android.bluetooth.le.BluetoothLeAdvertiser$1@193d47f
I/BluetoothLeAdvertiser(21284): startAdvertising is called
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet, calling package name = com.mesh.easysmart
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): advertise stopped and remove callback: android.bluetooth.le.BluetoothLeAdvertiser$1@193d47f
I/BluetoothLeAdvertiser(21284): startAdvertisingSet and gatt is: android.bluetooth.IBluetoothGatt$Stub$Proxy@49b399b and callback is: android.bluetooth.le.BluetoothLeAdvertiser$1@699a9aa
I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): stopAdvertisingSet, calling package name = com.mesh.easysmart callback = android.bluetooth.le.BluetoothLeAdvertiser$1@699a9aa
I/BluetoothLeAdvertiser(21284): startAdvertising is called
I/BluetoothLeAdvertiser(21284): advertise stopped and remove callback: android.bluetooth.le.BluetoothLeAdvertiser$1@699a9aa
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet, calling package name = com.mesh.easysmart
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet and gatt is: android.bluetooth.IBluetoothGatt$Stub$Proxy@243f511 and callback is: android.bluetooth.le.BluetoothLeAdvertiser$1@a86f138
I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): stopAdvertisingSet, calling package name = com.mesh.easysmart callback = android.bluetooth.le.BluetoothLeAdvertiser$1@a86f138
I/BluetoothLeAdvertiser(21284): startAdvertising is called
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet, calling package name = com.mesh.easysmart
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): advertise stopped and remove callback: android.bluetooth.le.BluetoothLeAdvertiser$1@a86f138
I/BluetoothLeAdvertiser(21284): startAdvertisingSet and gatt is: android.bluetooth.IBluetoothGatt$Stub$Proxy@9e9d477 and callback is: android.bluetooth.le.BluetoothLeAdvertiser$1@7c0b676
I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): stopAdvertisingSet, calling package name = com.mesh.easysmart callback = android.bluetooth.le.BluetoothLeAdvertiser$1@7c0b676
I/BluetoothLeAdvertiser(21284): startAdvertising is called
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): advertise stopped and remove callback: android.bluetooth.le.BluetoothLeAdvertiser$1@7c0b676
I/BluetoothLeAdvertiser(21284): startAdvertisingSet, calling package name = com.mesh.easysmart
I/BluetoothAdapter(21284): isLeEnabled(): ON
I/BluetoothLeAdvertiser(21284): startAdvertisingSet and gatt is: android.bluetooth.IBluetoothGatt$Stub$Proxy@fe1d14d and callback is: android.bluetooth.le.BluetoothLeAdvertiser$1@255e8e4
I/BluetoothLeAdvertiser(21284): stopAdvertising is called
I/BluetoothLeAdvertiser(21284): stopAdvertisingSet, calling package name = com.mesh.easysmart callback = android.bluetooth.le.BluetoothLeAdvertiser$1@255e8e4
I/BluetoothLeAdvertiser(21284): advertise stopped and remove callback: android.bluetooth.le.BluetoothLeAdvertiser$1@255e8e4
I/flutter (21284): [UMENG-FLUTTER-APM]--[Warn]：性能日志（pv、page_per、page_fps）到达最高上报限制
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/BluetoothDevice(21284): connectGatt: callingPid=21284 callingUid=10394
I/BluetoothDevice(21284): callingApp=com.mesh.easysmart
D/BluetoothGatt(21284): connect() - device: FF:FF:**:**:**:FF, auto: false
D/BluetoothGatt(21284): registerApp()
D/BluetoothGatt(21284): registerApp() - UUID=6ea1fdd1-9771-459a-9bf6-a273cd3dce72
D/BluetoothGatt(21284): onClientRegistered() - status=0 clientIf=17
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/BluetoothDevice(21284): connectGatt: callingPid=21284 callingUid=10394
I/BluetoothDevice(21284): callingApp=com.mesh.easysmart
D/BluetoothGatt(21284): connect() - device: FF:FF:**:**:**:FF, auto: false
D/BluetoothGatt(21284): registerApp()
D/BluetoothGatt(21284): registerApp() - UUID=678b0426-699f-4ae3-b7fc-000fe11439c5
D/BluetoothGatt(21284): onClientRegistered() - status=0 clientIf=18
I/flutter (21284): [UMENG-FLUTTER-APM]--[Warn]：性能日志（pv、page_per、page_fps）到达最高上报限制
D/BluetoothGatt(21284): onClientConnectionState() - status=133 clientIf=18 device=FF:FF:**:**:**:FF
D/BluetoothGatt(21284): close()
D/BluetoothGatt(21284): unregisterApp() - mClientIf=18
D/BluetoothGatt(21284): onClientConnectionState() - status=133 clientIf=17 device=FF:FF:**:**:**:FF
D/BluetoothGatt(21284): onClientConnectionState() - status=133 clientIf=16 device=FF:FF:**:**:**:FF
D/BluetoothGatt(21284): close()
D/BluetoothGatt(21284): close()
D/BluetoothGatt(21284): unregisterApp() - mClientIf=16
D/BluetoothGatt(21284): unregisterApp() - mClientIf=17
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
I/BluetoothDevice(21284): connectGatt: callingPid=21284 callingUid=10394
I/BluetoothDevice(21284): callingApp=com.mesh.easysmart
D/BluetoothGatt(21284): connect() - device: FF:FF:**:**:**:FF, auto: false
D/BluetoothGatt(21284): registerApp()
D/BluetoothGatt(21284): registerApp() - UUID=03643880-84c2-4230-b60a-caeef628709e
D/BluetoothGatt(21284): onClientRegistered() - status=0 clientIf=16
I/flutter (21284): printf_message:监听到设备状态BluetoothDevice{remoteId: FF:FF:FF:FF:FF:FF, platformName: smart lamp, services: null} BluetoothConnectionState.disconnected
[GETX] CLOSE DIALOG 559089158
chipweinberger commented 1 week ago

this is expected behavior.

you can use connectionState.skip(1) to avoid it

CallMeBossC commented 1 week ago

this is expected behavior.

you can use .skip(1) to avoid it

Is there an API that can do it every time you use the Bluetooth plug-in library, it caches ah streams or subscriptions are cleared