Expression wanted instead of ContentValues

I have this code:

private void saveBoard(){
        Card tmp;
        int n = cardBoard.length;
        for(int i = 0; i < n/2; i++) {
            for(int j = 0; j < n/2; j++) {
                tmp = cardBoard[i][j];
                ContentValues values = new ContentValues();
                values.put(Constants.ENTRY_COLUMN_POSITIONX, i);
                values.put(Constants.ENTRY_COLUMN_POSITIONY, j);
                values.put(Constants.ENTRY_COLUMN_VALUE, tmp.getValue());
            }
        }
        Uri uri = context.getContentResolver().insert(BoardContentProvider.CONTENT_URL, values);

        Toast.makeText(context, "New Diary-entry Added", Toast.LENGTH_SHORT).show();
    }

I'm following this example code:

public void addDiaryEntry(View v) {
        String title = mTitle.getText().toString();
        String content = mContent.getText().toString();

    if(title.isEmpty()) {
        mTitle.setError(getText(R.string.error_empty_title));
    } else if(content.isEmpty()) {
        mContent.setError(getText(R.string.error_empty_content));
    } else {
        ContentValues values = new ContentValues();
        values.put(Constants.ENTRY_COLUMN_TITLE, title);
        values.put(Constants.ENTRY_COLUMN_CONTENT, content);

        Calendar currentDate = Calendar.getInstance(); //Get the current date
        SimpleDateFormat formatter= new SimpleDateFormat("dd/MM/yyyy HH:mm:ss"); //format it as per your requirement
        String dateNow = formatter.format(currentDate.getTime());

        values.put(Constants.ENTRY_COLUMN_RECORD_DATE, dateNow);

        Uri uri = getContentResolver().insert(DiaryContentProvider.CONTENT_URL, values);

        Toast.makeText(getBaseContext(), "New Diary-entry Added", Toast.LENGTH_SHORT).show();

        goToShowDiaries();
    }
}

The main difference is, my class extends from GridLayout, and the class from example code extends AppCompatActivity.

The problem is this line:

Uri uri = context.getContentResolver().insert(BoardContentProvider.CONTENT_URL, values);

It doesn't take values as an argument, it wants an expression. What is the proper way to do this? I want to insert something in a db.