如何获取我的设备蓝牙 ID。我尝试获取但它们总是返回 02:00:00:00:00:00

Question

Hello I try to get my Bluetooth device id but that's not working. i try below code so can you check which mistake is i made in that.

public static String getBluetoothMacAddress(Context context) {
    BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    String bluetoothMacAddress = "0";
    try {
        Field mServiceField = bluetoothAdapter.getClass().getDeclaredField("mService");
        mServiceField.setAccessible(true);

        Object btManagerService = mServiceField.get(bluetoothAdapter);

        if (btManagerService != null) {
            bluetoothMacAddress = (String) btManagerService.getClass()
                    .getMethod("getAddress").invoke(btManagerService);

            Utils.printLog("bluetoothMacAddress ", bluetoothMacAddress);
        }
     bluetoothMacAddress=   android.provider.Settings.Secure.getString(context.getContentResolver(), "bluetooth_address");
    } catch (Exception e) {
        Utils.printLog("bluetoothMacAddress1 ", e.getMessage());
    }

    if (bluetoothMacAddress == null || bluetoothMacAddress.equals("") || bluetoothMacAddress.equals("02:00:00:00:00:00")) {
        bluetoothMacAddress = "0";
    }
    Utils.printLog("bluetoothMacAddress ", bluetoothMacAddress);
    return bluetoothMacAddress;
}

Answer 1

You mac address is a sort of id actually but on network layer, so that network can identify your device. You should always get same mac address for particular device, though there are some exceptions in manufacturing when multiple device could have same mac (like Arduino controllers). However, this is EXCEPTIONAL , rather than general