How To Set Floating Pont in TableViewHeaderView Ios/Iphone

CGFloat dummyViewHeight = 40;
UIView *dummyView = [[UIView alloc]

initWithFrame:CGRectMake(0, 0, self.tableView.bounds.size.width,

dummyViewHeight)];
self.tableView.tableHeaderView = dummyView;
self.tableView.contentInset = UIEdgeInsetsMake(-dummyViewHeight, 0, 0, 0);