Android開發 處理拍照完成後的照片角度

private void initImageAngle(){
        Bitmap imageBitmap = BitmapFactory.decodeFile(FilePathSession.getFaceImagePath().toString());
        Bitmap handlerImage = null;
        try {
            Matrix matrix = new Matrix();
            ExifInterface exifInterface = new ExifInterface(FilePathSession.getFaceImagePath().toString());
            int angle = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION, -1);
            switch (angle){
                case ExifInterface.ORIENTATION_ROTATE_270:
                    matrix.setRotate(270, imageBitmap.getWidth(), imageBitmap.getHeight());
                    handlerImage = Bitmap.createBitmap(imageBitmap, 0, 0, imageBitmap.getWidth(), imageBitmap.getHeight(),matrix,true);
                    mConfirmImage.setImageBitmap(handlerImage);
                    break;
                case ExifInterface.ORIENTATION_ROTATE_180:
                    matrix.setRotate(180, imageBitmap.getWidth(), imageBitmap.getHeight());
                    handlerImage = Bitmap.createBitmap(imageBitmap, 0, 0, imageBitmap.getWidth(), imageBitmap.getHeight(),matrix,true);
                    mConfirmImage.setImageBitmap(handlerImage);
                    break;
                case ExifInterface.ORIENTATION_ROTATE_90:
                    matrix.setRotate(90, imageBitmap.getWidth(), imageBitmap.getHeight());
                    handlerImage = Bitmap.createBitmap(imageBitmap, 0, 0, imageBitmap.getWidth(), imageBitmap.getHeight(),matrix,true);
                    mConfirmImage.setImageBitmap(handlerImage);
                    break;
                default:
                    mConfirmImage.setImageBitmap(imageBitmap);
                    break;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        if (handlerImage != null){
            try {
                FileOutputStream fileOutputStream = new FileOutputStream(FilePathSession.getFaceImagePath());
                handlerImage.compress(Bitmap.CompressFormat.JPEG, 90 , fileOutputStream);
                fileOutputStream.flush();
                fileOutputStream.close();
                imageBitmap.recycle();
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }