About Android in the call system to take pictures, the return picture is rotated 90 degrees.

Due to the needs of the project, there is no custom camera function, just call the system's camera program. But there is a problem, that is, the photo is finished to show the picture is actually rotated pictures ....

Workaround:

/**
                  * Get the rotation angle of the picture, some systems rotate the picture taken, and some do not rotate
                  */
                 Int degree = readPictureDegree(f.getAbsolutePath());
                  
                 BitmapFactory.Options opts=new BitmapFactory.Options();//Get the thumbnail display to the screen opts.inSampleSize=2;
                 Bitmap cbitmap=BitmapFactory.decodeFile(f.getAbsolutePath(),opts);
                  
                 /**
                  * Rotate the picture to a positive direction
                  */
                 Bitmap newbitmap = rotaingImageView(degree, cbitmap);
                 iv.setImageBitmap(newbitmap);

/** * Read image properties: angle of rotation
 * @param path image absolute path
    * @return degree angle of rotation
  */
 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;
   }
/* * Rotate image * @param angle * @param bitmap * @return Bitmap */
Public static Bitmap rotaingImageView(int angle , Bitmap bitmap) { //Rotate the image Action
  Matrix matrix = new Matrix();;
 matrix.postRotate(angle);
     System.out.println("angle2=" + angle);
    // Create a new image
      Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
     Return resizedBitmap;
 }

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About Android in the call system to take pictures, the return picture is rotated 90 degrees.