Flip Animation Is Showing Next View BEFORE The Animation Starts

Question

Hi All,
I am trying to do a flip animation, but the new subview is showing BEFORE the animation takes place rather than 1/2 way through the animation. It looks really bad. Can anyone see what I'm doing wrong... I've checked the elements application and mine looks pretty similar...
// setup the animation group
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.75];
[UIView setAnimationDelegate:self];
// [UIView setAnimationDidStopSelector:@selector(transitionDidStop:finished:context:)];
// flip views
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
[questionCard removeFromSuperview];
[self.view addSubview:answerCard];
[UIView commitAnimations];
Thanks
Ray

Answer 1

Ok, I've stripped this down to it's bear bones and it's still not working. Here's what's left and when I swipe from right to left it displays the label and THEN animates...
// PlayGameController.h
// JapaneseMyWay
// Created by Ray on 4/22/09.
// Copyright 2009 _MyCompanyName_. All rights reserved.
#import <UIKit/UIKit.h>
#import "GuessingGameQuestionCard.h"
#import "GuessingGameAnswerCard.h"
// this controllers view contains the main area for playing the game. sub views for flash cards are shown.
@interface PlayGuessingGameController : UIViewController {
CGPoint gestureStartPoint;
UILabel *testLabel;
-(void)flipCard;
@end
// PlayGameController.m
// JapaneseMyWay
// Created by Ray on 4/22/09.
// Copyright 2009 _MyCompanyName_. All rights reserved.
#import "PlayGuessingGameController.h"
@implementation PlayGuessingGameController
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
// create a new view for this controller
self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
-(void)touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event {
NSSet *myTouches = [event touchesForView:self.view];
UITouch *touch = [myTouches anyObject];
CGPoint point = [touch locationInView:self.view];
// save start point
gestureStartPoint = point;
-(void)touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event {
NSSet *myTouches = [event touchesForView:self.view];
UITouch *touch = [myTouches anyObject];
CGPoint point = [touch locationInView:self.view];
// if we swiped right to left
float minLength = 25.0f;
float maxVariance = 5.0f;
// did we swipe right to left?
if (gestureStartPoint.x-point.x > minLength && abs(gestureStartPoint.y-point.y) < maxVariance) {
// flip card
[self flipCard];
-(void)flipCard {
// setup the animation group
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.75];
// flip views
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
testLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 240, 320)];
testLabel.text = @"test";
[self.view addSubview:testLabel];
[UIView commitAnimations];
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
// Release anything that's not essential, such as cached data
- (void)dealloc {
[super dealloc];
@end
Thanks
Ray