bitmap - Captured Photo orientation is changing in android

Question

I'am opening camera app on click of a button. And displaying the captured photo in next activity. But the captured photo is rotating by 90 degrees. When I display the image in a view after I capture it, it's orientation is always landscape. Why is the photo not being shown in portrait as is when the photo is taken in portrait mode?

onClick of a button :

Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
i.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(APP_DIR+"/latest.png")));       
startActivityForResult(i, CAPTURE_PHOTO_CONSTANT);

Inside onActvityresult:

bmp = BitmapFactory.decodeFile(APP_DIR+"/latest.png");
startActivity(new Intent(this, DisplayActivity.class));

Displaying captured photo:

photoViewRelativeLayout.setBackgroundDrawable(new BitmapDrawable(getResources(), CaptureActivity.bmp));

Answer 1

I had the same problem mostly with the Samsung handsets.Apparently Samsung phones set the EXIF orientation tag, rather than rotating individual pixels.Reading the Bitmap using BitmapFactory does not support this tag.What i found the solution to this problem was using ExifInterface in onActivityResult method of the activity.Which checks for orientation associated with URI of the captured image from the camera.

                        int rotate = 0;
                        try {
                            getContentResolver().notifyChange(imageUri, null);
                            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;
                            }
                            Log.v(Common.TAG, "Exif orientation: " + orientation);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }

                        /****** Image rotation ****/
                        Matrix matrix = new Matrix();
                        matrix.postRotate(orientation);
                        Bitmap cropped = Bitmap.createBitmap(scaled, x, y, width, height, matrix, true);