Fixed bug with preview stretch on orientation change (#23)

* #20 Fixed bug with preview stretch on orientation change

* Changed OrientationHelper

cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java

@@ -449,7 +449,7 @@ class Camera1 extends CameraController {
 
     @Override
     boolean shouldFlipSizes() {
-        return mSensorOffset % 180 != 0;
+        return (mDeviceOrientation  + mSensorOffset) % 180 != 0;
     }
 
     @Override

cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java

@@ -22,6 +22,7 @@ import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.util.AttributeSet;
 import android.util.Log;
+import android.view.Display;
 import android.view.MotionEvent;
 import android.view.ViewGroup;
 import android.view.WindowManager;
@@ -169,8 +170,7 @@ public class CameraView extends FrameLayout {
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         if (!isInEditMode()) {
-            WindowManager manager = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);
-            mOrientationHelper.enable(manager.getDefaultDisplay());
+            mOrientationHelper.enable(getContext());
         }
     }
 
@@ -487,6 +487,8 @@ public class CameraView extends FrameLayout {
 
         if (checkPermissions(getSessionType())) {
             mIsStarted = true;
+            // Update display orientation for current CameraController
+            mOrientationHelper.enable(getContext());
             mCameraController.start();
         }
     }

cameraview/src/main/utils/com/otaliastudios/cameraview/OrientationHelper.java

@@ -7,6 +7,7 @@ import android.util.SparseIntArray;
 import android.view.Display;
 import android.view.OrientationEventListener;
 import android.view.Surface;
+import android.view.WindowManager;
 
 class OrientationHelper {
 
@@ -67,10 +68,10 @@ class OrientationHelper {
         };
     }
 
-    void enable(Display display) {
-        mDisplay = display;
+    void enable(Context context) {
+        mDisplay = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
         mListener.enable();
-        mLastKnownDisplayOffset = DISPLAY_ORIENTATIONS.get(display.getRotation());
+        mLastKnownDisplayOffset = DISPLAY_ORIENTATIONS.get(mDisplay.getRotation());
         mCallbacks.onDisplayOffsetChanged(mLastKnownDisplayOffset);
     }