xcode : How to change view page with Flip effect on Button tap? - iphone

Question

Below is the code of ModelController.m:
- (id)init
{
self = [super init];
if (self) {
// Create the data model.
DataHandler *handler = [DataHandler defaultDataHandler];
[handler syncData];
NSInteger tempTotal=1;//[[DataHandler defaultDataHandler] getTotalContents];
NSMutableDictionary *favs=[Settings getSetting:kFavList];
if(favs!=nil){
tempTotal=[favs count]+1;
}
NSInteger TotalItems=tempTotal;//tempTotal>=6?tempTotal:6;
NSInteger PageSize=6;
NSInteger PageNo= (TotalItems/PageSize);
if(TotalItems%PageSize!=0){
PageNo++;
}
self.TotalPage=PageNo;
NSInteger i=0,temp=PageSize;
self.pageArray=[[NSMutableDictionary alloc] initWithCapacity:PageNo];
for (i=0; i<PageNo; i++) {
temp=(PageNo==i+1 && TotalItems%PageSize!=0)? TotalItems%PageSize:PageSize;
[self.pageArray setObject:[NSString stringWithFormat:#"%d",temp] forKey:[NSString stringWithFormat:#"%d",i+1]];
}
//NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
//_pageData = [[dateFormatter monthSymbols] copy];
self.pageData=[self.pageArray allKeys];
}
return self;
}
- (HomeViewController *)viewControllerAtIndex:(NSUInteger)index {
NSLog(#"viewControllerAtIndex is called..");
// Return the data view controller for the given index.
if (([self.pageData count] == 0) || (index >= [self.pageData count])) {
return nil;
}
// Create a new view controller and pass suitable data.
HomeViewController *homeViewController = nil;
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
homeViewController = [[[HomeViewController alloc] initWithNibName:#"HomeViewController_iPhone" bundle:nil] autorelease];
} else {
homeViewController = [[[HomeViewController alloc] initWithNibName:#"HomeViewController_iPad" bundle:nil] autorelease];
}
homeViewController.dataObject = [self.pageData objectAtIndex:index];
homeViewController.PageItemsCount= [[self.pageArray valueForKey:[NSString stringWithFormat:#"%d",index+1]] integerValue];
homeViewController.TotalPage=self.TotalPage;
homeViewController.CurrentPage=index+1;
return homeViewController;
}
- (NSUInteger)indexOfViewController:(HomeViewController *)viewController
{
// Return the index of the given data view controller.
// For simplicity, this implementation uses a static array of model objects and the view controller stores the model object; you can therefore use the model object to identify the index.
return viewController.CurrentPage-1;
}
- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerBeforeViewController:(UIViewController *)viewController
{
NSUInteger index = [self indexOfViewController:(HomeViewController *)viewController];
if ((index == 0) || (index == NSNotFound)) {
return nil;
}
index--;
return [self viewControllerAtIndex:index];
}
- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController viewControllerAfterViewController:(UIViewController *)viewController
{
NSUInteger index = [self indexOfViewController:(HomeViewController *)viewController];
if (index == NSNotFound) {
return nil;
}
index++;
if (index == [self.pageData count]) {
return nil;
}
return [self viewControllerAtIndex:index];
}
This is working fine when I swipe the screen, but I also want to change screen on any button tap of main view page (in this case it's homeViewController.m), as it's code is very lengthy I didn't post code here.
can anyone tell me how to achieve this?
Thanks
Ashish

Answer 1

[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:0.80];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight
forView:self.view cache:NO];
[UIView commitAnimations];
//Addd this line on click event of button action

Answer 2

You could simply try and animate the view transform like this (for a vertical flip):
[UIView animateWithDuration:0.5 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut
animations:^(void) {
view.transform = CGAffineTransformMakeScale(1, -1);
}
completion:nil];
Thanks