TableViewHeader animation not moving header - ios

Question

I have a TableViewHeader and want to animate it so it looks like it is shrinking when I have rows in my table. I have tried numerous things but it doesn't want to move. The console output shows it was resized but I still see it as normal on the screen.
Why is the animation not working? Am I overlooking something?
- (void)setProperHeader
{
UIView *tempView = nil;
CGRect offsets;
if ([appointmentsList count] == 0) {
NSLog(#"List Count 0");
tempView = [[self.storyboard instantiateViewControllerWithIdentifier:#"ExistingAppointmentsViewController"] viewWithTag:400];
offsets = CGRectMake(tempView.frame.origin.x, tempView.frame.origin.y, tempView.frame.size.width, tempView.frame.size.height);
tempView.frame = CGRectMake(offsets.origin.x, offsets.origin.y, offsets.size.width, 0);
} else {
NSLog(#"List Count is %i", [appointmentsList count]);
tempView= self.tableView.tableHeaderView;
offsets = CGRectMake(tempView.frame.origin.x, tempView.frame.origin.y, tempView.frame.size.width, 0);
}
NSLog(#"TableView Frame: %#", NSStringFromCGRect(self.tableView.tableHeaderView.frame));
NSLog(#"Offsets %#", NSStringFromCGRect(offsets));
NSLog(#"Temp: %#", tempView);
// if (tempView != self.tableView.tableHeaderView) {
[self.tableView setTableHeaderView:tempView];
[UIView animateWithDuration:1.0f
animations:^{
tempView.frame = offsets;
}
completion:^(BOOL finished) {
NSLog(#"Complete tempView: %#", tempView);
NSLog(#"Complete tableHeader: %#", self.tableView.tableHeaderView);
[self.tableView setNeedsLayout];
[self.tableView reloadData];
}];
// }
}
The [self.tableView setNeedsLayout] was added in as a test to see if that would make it work.
Console Output
2013-09-25 16:04:32.301 App[63910:a0b] List Count is 2
2013-09-25 16:04:32.301 App[63910:a0b] TableView Frame: {{0, 0}, {320, 91}}
2013-09-25 16:04:32.301 App[63910:a0b] Offsets {{0, 0}, {320, 0}}
2013-09-25 16:04:32.302 App[63910:a0b] Temp: <UIView: 0xa568560; frame = (0 0; 320 91); autoresize = W+H; tag = 400; layer = <CALayer: 0xa5685c0>>
2013-09-25 16:04:33.313 App[63910:a0b] Complete tempView: <UIView: 0xa568560; frame = (0 0; 320 0); autoresize = W+H; tag = 400; layer = <CALayer: 0xa5685c0>>
2013-09-25 16:04:33.313 App[63910:a0b] Complete tableHeader: <UIView: 0xa568560; frame = (0 0; 320 0); autoresize = W+H; tag = 400; layer = <CALayer: 0xa5685c0>>