All vertical oriented images are strangely autorotated only on some devices

I have an app that take pictures from camera or gallery and shows the result in an imageview.

I only get the image with content provider and use this scale function

public Bitmap scaleim(Bitmap bitmap) {
       ...
        Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, resizedWidth, resizedHeight, false);
        return scaledBitmap;
    }

In my devices with android 5 everything works ok, now I have tested the same App on a my friend device with Android 7, and every pictures that is vertical oriented is automatically rotated to horizontal orientation. This looks really weird and I have no idea of what causes the issue.

Problem is not in scaling but captured images work differently as per the hardware.Before start scaling that should be rotated as per suitable devices. Here it is following code:

  Matrix matrix = new Matrix();
  matrix.postRotate(getImageOrientation(url));
  Bitmap rotatedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(),
  bitmap.getHeight(), matrix, true)

public static int getImageOrientation(String imagePath){
     int rotate = 0;
     try {

         File imageFile = new File(imagePath);
         ExifInterface exif = new ExifInterface(
                 imageFile.getAbsolutePath());
         int orientation = exif.getAttributeInt(
                 ExifInterface.TAG_ORIENTATION,
                 ExifInterface.ORIENTATION_NORMAL);

         switch (orientation) {
         case ExifInterface.ORIENTATION_ROTATE_270:
             rotate = 270;
             break;
         case ExifInterface.ORIENTATION_ROTATE_180:
             rotate = 180;
             break;
         case ExifInterface.ORIENTATION_ROTATE_90:
             rotate = 90;
             break;
         }
     } catch (IOException e) {
         e.printStackTrace();
     }
    return rotate;
 }