비트맵 정방향 가져오기에서 int orientation에서 null에러

Question

 //사진보내기
    public void sendimage(View view) {
        Intent intent = new Intent(Intent.ACTION_PICK);
        intent.setData(android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(intent, REQUST_IMAGE_GET);
    }

    private String getRealPathFromURI(Uri contentUri) {
        int column_index=0;
        String[] proj = {MediaStore.Images.Media.DATA};
        Cursor cursor = getContentResolver().query(contentUri, proj, null, null, null);
        if(cursor.moveToFirst()){
            column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        }

        return cursor.getString(column_index);
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {

        if (requestCode == REQUST_IMAGE_GET && resultCode == RESULT_OK && data != null) {
            Uri fullPhotoUri = data.getData();
            assert fullPhotoUri != null;
            String fullstring = fullPhotoUri.toString();
            String realpath=getRealPathFromURI(fullPhotoUri);


            ExifInterface exif = null;
            try {
                exif = new ExifInterface(realpath);
            } catch (IOException e) {
                e.printStackTrace();
            }
            assert exif != null;
            int exifOrientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);

.....................

마지막줄 exiforientation에서 밑에 에러발생합니다 

error: Attempt to invoke virtual method 'int android.media.ExifInterface.getAttributeInt(java.lang.String, int)' on a null object reference

 

minsdk19

targetsdk28

 

어떻게하면 좋을까요 고수님들 ㅠㅠ

+exif 로그로 확인했더니 nullorientation나왔는데 null이 나왔단거겠죠?

Answer 1

realpath 변수의 경로가 잘못 되었거나, 해당 경로의 접근 권한 문제가 아닌가 싶네요.

Comments

권한문제였네요 감사합니다 ! ㅎㅎ