public void enable()

in car_app_library/showcase/common/src/main/java/androidx/car/app/sample/showcase/common/renderer/CarHardwareRenderer.java [151:228]
68 lines of code
9 McCabe index (conditional complexity)

    public void enable(@NonNull Runnable onChangeListener) {
        mRequestRenderRunnable = onChangeListener;
        CarHardwareManager carHardwareManager =
                mCarContext.getCarService(CarHardwareManager.class);
        CarInfo carInfo = carHardwareManager.getCarInfo();
        CarSensors carSensors = carHardwareManager.getCarSensors();

        // Request car info subscription items.
        mTollCard = null;
        try {
            carInfo.addTollListener(mCarHardwareExecutor, mTollListener);
            mHasTollCardPermission = true;
        } catch (SecurityException e) {
            mHasTollCardPermission = false;
        }

        mEnergyLevel = null;
        try {
            carInfo.addEnergyLevelListener(mCarHardwareExecutor, mEnergyLevelListener);
            mHasEnergyLevelPermission = true;
        } catch (SecurityException e) {
            mHasEnergyLevelPermission = false;
        }

        mSpeed = null;
        try {
            carInfo.addSpeedListener(mCarHardwareExecutor, mSpeedListener);
            mHasSpeedPermission = true;
        } catch (SecurityException e) {
            mHasSpeedPermission = false;
        }

        mMileage = null;
        try {
            carInfo.addMileageListener(mCarHardwareExecutor, mMileageListener);
            mHasMileagePermission = true;
        } catch (SecurityException e) {
            mHasMileagePermission = false;
        }

        // Request sensors
        mCompass = null;
        try {
            carSensors.addCompassListener(CarSensors.UPDATE_RATE_NORMAL, mCarHardwareExecutor,
                    mCompassListener);
            mHasCompassPermission = true;
        } catch (SecurityException e) {
            mHasCompassPermission = false;
        }

        mGyroscope = null;
        try {
            carSensors.addGyroscopeListener(CarSensors.UPDATE_RATE_NORMAL, mCarHardwareExecutor,
                    mGyroscopeListener);
            mHasGyroscopePermission = true;
        } catch (SecurityException e) {
            mHasGyroscopePermission = false;
        }

        mAccelerometer = null;
        try {
            carSensors.addAccelerometerListener(CarSensors.UPDATE_RATE_NORMAL,
                    mCarHardwareExecutor,
                    mAccelerometerListener);
            mHasAccelerometerPermission = true;
        } catch (SecurityException e) {
            mHasAccelerometerPermission = false;
        }

        mCarHardwareLocation = null;
        try {
            carSensors.addCarHardwareLocationListener(CarSensors.UPDATE_RATE_NORMAL,
                    mCarHardwareExecutor, mCarLocationListener);
            mHasCarHardwareLocationPermission = true;
        } catch (SecurityException e) {
            mHasCarHardwareLocationPermission = false;
        }
    }