CAMERA_TEST.java

public CAMERA_TEST extends Fragment {
    private final int CAMERA_IMAGE_CODE = 10;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        File out = new File(Environment.getExternalStorageDirectory(), "test.jpg");
        Uri uri = Uri.fromFile(out);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
        startActivityForResult(intent, CAMERA_IMAGE_CODE);
        
        super.onCreate(savedInstanceState);
    }
    
    
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == CAMERA_IMAGE_CODE) {
            File file = new File(Environment.getExternalStorageDirectory(), "test.jpg");
            // 有些手機回傳會是 0
            Log.i("imageRotation", getExifRotation(file));
        }
    }    
    
    public static int getExifRotation(File imageFile) {
        if (imageFile == null) {
            return 0;
        }
        try {
            ExifInterface exif = new ExifInterface(imageFile.getAbsolutePath());
            // We only recognize a subset of orientation tag values
            switch (exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_UNDEFINED)) {
                case ExifInterface.ORIENTATION_ROTATE_90:
                    return 90;
                case ExifInterface.ORIENTATION_ROTATE_180:
                    return 180;
                case ExifInterface.ORIENTATION_ROTATE_270:
                    return 270;
                default:
                    return ExifInterface.ORIENTATION_UNDEFINED;
            }
        } catch (IOException e) {
            Log.e("Error getting Exif data", e);
            return 0;
        }
    }
}