make orientation public

ios/RCTSensorOrientationChecker.h

@@ -13,6 +13,8 @@ typedef void (^RCTSensorCallback) (UIInterfaceOrientation orientation);
 
 @interface RCTSensorOrientationChecker : NSObject
 
+@property (assign, nonatomic) UIInterfaceOrientation orientation;
+
 - (void)getDeviceOrientationWithBlock:(RCTSensorCallback)callback;
 - (AVCaptureVideoOrientation)convertToAVCaptureVideoOrientation:(UIInterfaceOrientation)orientation;
 

ios/RCTSensorOrientationChecker.m

@@ -13,7 +13,6 @@
 @interface RCTSensorOrientationChecker ()
 
 @property (strong, nonatomic) CMMotionManager * motionManager;
-@property (assign, nonatomic) UIInterfaceOrientation orientation;
 @property (strong, nonatomic) RCTSensorCallback orientationCallback;
 
 @end
@@ -33,6 +32,11 @@
     return self;
 }
 
+- (void)dealloc
+{
+    [self pause];
+}
+
 - (void)resume
 {
     __weak __typeof(self) weakSelf = self;