[Iphone]테이블뷰 그룹일 경우 백그라운드 설정하기

UIView *backgroundView = [[UIView alloc] initWithFrame: self.view.frame];
backgroundView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"backgroundImg.png"]];
self.tableView.backgroundView = backgroundView;
[backgroundView release];