Android获取本机蓝牙地址

从Android6.0开始，通过BluetoothAdapter.getDefaultAdapter().getAddress()获取的地址是一个固定值02:00:00:00:00:00，部分从低版本升级到6.0的手机也还是可以获取真实的MAC地址的。下面通过反射的方式

获取蓝牙地址：

public static String getBtAddressByReflection() {        BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();        Field field = null;        try {            field = BluetoothAdapter.class.getDeclaredField("mService");            field.setAccessible(true);            Object bluetoothManagerService = field.get(bluetoothAdapter);            if (bluetoothManagerService == null) {                return null;            }            Method method = bluetoothManagerService.getClass().getMethod("getAddress");            if(method != null) {               Object obj = method.invoke(bluetoothManagerService);               if(obj != null) {                    return obj.toString();               }            }        } catch (NoSuchFieldException e) {            e.printStackTrace();        } catch (IllegalAccessException e) {            e.printStackTrace();        } catch (NoSuchMethodException e) {            e.printStackTrace();        } catch (InvocationTargetException e) {            e.printStackTrace();        }        return null;    }

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