android 蓝牙 断开连接和取消配对的广播

在 Android 中，断开连接和取消配对的广播分别是 ACTION_ACL_DISCONNECTED 和 ACTION_BOND_STATE_CHANGED。

ACTION_ACL_DISCONNECTED 广播在 BluetoothAdapter 中定义，当蓝牙连接断开时发送。您可以使用以下代码注册和接收此广播：

private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();

        if (BluetoothAdapter.ACTION_ACL_DISCONNECTED.equals(action)) {
            // 处理断开连接的逻辑
        }
    }
};

IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_ACL_DISCONNECTED);
registerReceiver(mReceiver, filter);

ACTION_BOND_STATE_CHANGED 广播在 BluetoothDevice 中定义，当蓝牙设备配对状态更改时发送。您可以使用以下代码注册和接收此广播：

private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();

        if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(action)) {
            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
            int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, BluetoothDevice.ERROR);
            int previousBondState = intent.getIntExtra(BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE, BluetoothDevice.ERROR);

            if (bondState == BluetoothDevice.BOND_NONE && previousBondState == BluetoothDevice.BOND_BONDED) {
                // 处理取消配对的逻辑
            }
        }
    }
};

IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
registerReceiver(mReceiver, filter);