設備綁定時，Android 不會廣播 ACTION_BOND_STATE_CHANGED

Question

我有一個 BluetoothDevice.ACTION_BOND_STATE_CHANGED 的廣播接收器，看起來像這樣：

fun Int.toBondStateDescription() = when (this) {
    BluetoothDevice.BOND_BONDED -> "BONDED"
    BluetoothDevice.BOND_BONDING -> "BONDING"
    BluetoothDevice.BOND_NONE -> "NOT BONDED"
    else -> "ERROR: $this"
}

when (intent?.action) {
     BluetoothDevice.ACTION_BOND_STATE_CHANGED -> {
          val device = intent.getParcelableExtra<BluetoothDevice>(BluetoothDevice.EXTRA_DEVICE)
          val previousBondState = intent.getIntExtra(BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE, -1)
          val bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, -1)
          val bondTransition = "${previousBondState.toBondStateDescription()} to " + bondState.toBondStateDescription()
          Log.w("Bond state change", "${device?.address} bond state changed | $bondTransition")
     }
}

當狀態從BOND_NONE變為BOND_BONDING或相反時，這很有效。 但是，當它從BOND_BONDING到BOND_BONDED時，我什么也沒得到。 如果我手動獲取設備的綁定狀態，我可以看到它已綁定，但我從未收到任何通知。

我錯過了什么嗎？

示例日志：

// Connection begins
D/BluetoothGatt: connect() - device: XX:XX:XX:XX:XX:XX, auto: false
D/BluetoothGatt: registerApp()
D/BluetoothGatt: registerApp() - UUID=1b5f1492-f53f-4d06-8704-6de7b0222769
D/BluetoothGatt: onClientRegistered() - status=0 clientIf=9
D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=9 device=XX:XX:XX:XX:XX:XX
D/BluetoothGatt: onConnectionUpdated() - Device=XX:XX:XX:XX:XX:XX interval=36 latency=0 timeout=500 status=42
D/MyBroadcastReceiver: ACTION_BOND_STATE_CHANGED
D/Bond state change: XX:XX:XX:XX:XX:XX bond state changed | NOT BONDED to BONDING

// Android stuff
V/FA: Connecting to remote service
V/FA: Connection attempt already in progress
V/FA: Activity paused, time: 1735662355
D/FA: Connected to remote service
V/FA: Processing queued up service tasks: 2
V/FA: Activity resumed, time: 1735663677

// Then I press a button that prints out the bond state, I can see that it is bonded but I was never notified
D/BOND STATE: BONDED

Answer 1

這似乎是Android方面的一個問題。 我已經發現了一些類似的問題，但它們也仍未解決，請參見此處：

• 配對過程后藍牙 BLE 設備未綁定
• BroadcastReceiver 和 ACTION_BOND_STATE_CHANGED 在 Android 9.0 中部分工作

我創建了一個問題供 Google 查看。 你可以在這里找到它。

如果有任何新內容出現，我將更新此答案。