UISearchBar在横向时不响应，但在iPad上纵向时响应良好

    int width = 250;
searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(768 - width - indent, companySelectionButton.frame.origin.y + (companySelectionButton.frame.size.height - 44)/2, width, 44)];
[searchBar setAutoresizingMask: UIViewAutoresizingFlexibleLeftMargin];
[searchBar setPlaceholder:[Globals localisedString:@\"Search by Code or Name\"]];
[searchBar setAutocorrectionType:UITextAutocorrectionTypeNo];
[searchBar setDelegate:self];
[self.view addSubview:searchBar];
[searchBar release];
[[searchBar.subviews objectAtIndex:0] removeFromSuperview];

[searchBar setAutoresizingMask: UIViewAutoresizingFlexibleLeftMargin];

[[searchBar.subviews objectAtIndex:0] removeFromSuperview];