Here you can find the source of GetExifOrientation(String filepath)
public synchronized static int GetExifOrientation(String filepath)
//package com.java2s; import java.io.IOException; import android.media.ExifInterface; import android.util.Log; public class Main { private static final String TAG = "CAMERA::Activity"; public synchronized static int GetExifOrientation(String filepath) { int degree = 0; ExifInterface exif = null;/*ww w . ja v a 2s. c o m*/ try { exif = new ExifInterface(filepath); } catch (IOException e) { Log.e(TAG, "cannot read exif"); e.printStackTrace(); } if (exif != null) { int orientation = exif.getAttributeInt( ExifInterface.TAG_ORIENTATION, -1); if (orientation != -1) { // We only recognize a subset of orientation tag values. 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; } } } return degree; } }