Question

I have a transition class that has two views in the same view controller. This works ok. I want to apply the same transition to a second view controller. I’m not getting any exceptions, but it isn’t working…

The current transition code is like this:

Custom Transition class

- (id)initWithBaseView:(UIView *)baseView firstView:(UIView *)firstView lastView:(UIView *)lastView
{
    if((self = [super init])) {
        self.view = baseView;
        self.originalView = firstView;
        self.nextView = lastView;
    }
    return self;
}

This is the code that is working:

Single View Controller class

- (IBAction)doTransition:(id)sender
{
    MyTransition *transition = [[MyTransition alloc] initWithBaseView:self.view 
                                                                          firstView:self.currentView 
                                                                           lastView:self.nextView];
    [transition buildAnimation];
}

I would like to achieve something like this:

- (IBAction)doTransition:(id)sender
{
    NSLog(@"%s", __FUNCTION__);
    MyTransition *transition = [[MyTransition alloc] initWithBaseView:self.view
                                                                          firstView:self.currentView 
                                                                           lastView:secondView.lastView];
    [transition buildAnimation];
}
- (void)viewDidLoad
{
    NSLog(@"%s", __FUNCTION__);
    [super viewDidLoad];
    secondView = [[SecondViewController *) secondView initWithNibName:@"SecondViewController" bundle:nil];
}

where First View is in the firstView Controller and next view is in the second view controller..

UPDATE:

I’ve updated the First VC as follows:

   - (void)viewDidLoad
    {
        NSLog(@"%s", __FUNCTION__);
        [super viewDidLoad];
        secondView = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    }

- (IBAction)doTransition:(id)sender
{
    NSLog(@"%s", __FUNCTION__);
    MyTransition *transition = [[MyTransition alloc] initWithBaseView:self.view                                             firstView:self.currentView                                                   lastView:secondView.view];

    [transition buildAnimation];
}

Logging the second VC shows that it is not called..

Answer 1

I think it should work if you try something like this:

- (IBAction)doTransition:(id)sender
{
    NSLog(@"%s", __FUNCTION__);
    MyTransition *transition = [[MyTransition alloc] initWithBaseView:self.view
                                                                          firstView:self.currentView 
                                                                           lastView:secondView.view];
    [transition buildAnimation];
}
- (void)viewDidLoad
{
    NSLog(@"%s", __FUNCTION__);
    [super viewDidLoad];
    secondView = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
}

If i understand what you’re trying to do, then you should be able to perform the same animation on the SecondViewController’s view, just like you would with a regular view. Or am I missing something else?