Android 三星手机拍照，从图库选择照片旋转问题完美解决

/**
     * 读取照片exif信息中的旋转角度
     * @param path 照片路径
     * @return角度
     */
    public static int readPictureDegree(String path) {
        int degree  = 0;
        try {
            ExifInterface exifInterface = new ExifInterface(path);
            int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);
            switch (orientation) {
                case ExifInterface.ORIENTATION_ROTATE_90:
                    degree = 90;
                    break;
                case ExifInterface.ORIENTATION_ROTATE_180:
                    degree = 180;
                    break;
                case ExifInterface.ORIENTATION_ROTATE_270:
                    degree = 270;
                    break;
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return degree;
    }

public static Bitmap toturn(Bitmap img){
        Matrix matrix = new Matrix();
        matrix.postRotate(+90); /*翻转90度*/
        int width = img.getWidth();
        int height =img.getHeight();
        img = Bitmap.createBitmap(img, 0, 0, width, height, matrix, true);
        return img;
    }