用xib自定义UIView--iOS

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    NSArray *nibContents = [[NSBundle mainBundle] loadNibNamed:@"HeadView" owner:nil options:nil];
    // Find the view among nib contents (not too hard assuming there is only one view in it).
    HeadView *headView = [nibContents lastObject];
    headView.frame = CGRectMake(0, 0, 300, 200);
    //headView.backgroundColor = [UIColor blueColor];
    _tableView.tableHeaderView = headView;
}