确保照片以与拍摄时相同的方向保存？

Question

由于某种原因,我的相机应用程序保存所有旋转90度的照片(图片只在横向模式下用相机拍摄时看起来正确)我相信照片应该自动旋转照片但我读到三星设备有问题(我还没有能够在另一个品牌测试它,所以我不知道是否是这种情况).这是我的代码:

   public void onPictureTaken(byte[] data, Camera camera) {
      // Generate file name
      FileOutputStream outStream = null;
      outStream = new FileOutputStream(filePath);
      outStream.write(data);
      outStream.close();

我认为可以通过检查方向和旋转字节数组来修复它,但是必须有一种更直接的方法来处理它,因为处理字节数组很麻烦.如何确保照片的保存方式与拍摄方向相符？

Answer 1

尝试这样的事情：

int orientation = Exif.getOrientation(data);
Log.d("#", "onPictureTaken().orientation = " + orientation);
if(orientation != 0) {
     Bitmap bmpSrc = BitmapFactory.decodeByteArray(data, 0, data.length);
     Bitmap bmpRotated = CameraUtil.rotate(bmpSrc, orientation);
     bmpSrc.recycle();


       try {

             FileOutputStream localFileOutputStream = new FileOutputStream(filePath);
             bmpRotated.compress(Bitmap.CompressFormat.JPEG, 90,localFileOutputStream);
             localFileOutputStream.flush();
             localFileOutputStream.close();
             bmpRotated.recycle();

           }
        catch (FileNotFoundException e) 
           {
              e.printStackTrace();
           }
        catch (IOException e) 
           {
               e.printStackTrace();
           }

      } else {

          try {

               FileOutputStream localFileOutputStream = new FileOutputStream(filePath);
               localFileOutputStream.write(data);
               localFileOutputStream.flush();
               localFileOutputStream.close();

               } catch (IOException localIOException)
                  {
                                        Log.e("#",localIOException.getMessage());
                  }
   }