How to animate when no reference to target view?

Discussion in 'iOS Programming' started by Earl Grey, Dec 7, 2011.

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  1. Earl Grey, Dec 7, 2011
    Last edited by a moderator: Dec 8, 2011

    Earl Grey macrumors newbie

    Joined:
    Nov 30, 2011
    #1
    Hi,

    In my iOS5 app for iPhone, I have something like this

    AppDelegate
    ivar ViewController1
    ivar ViewController2


    ViewController1
    ivar view1
    ivar button1
    IBAction animateToView


    ViewController2
    ivar view2


    Now I want to animate from view1 from viewcontroller1 to view2 from viewcontroller2 by pushing a button in viewcontroller1.
    Bu I do not have a reference to the view2 to the viewcontroller2 in viewcontroler1.

    If I hook the button to an action/target and use block based animation in it
    this one >>

    Code:
        [UIView transitionFromView:<#(UIView *)#> 
                        toView:<#(UIView *)#> 
                      duration:<#(NSTimeInterval)#> 
                       options:<#(UIViewAnimationOptions)#> 
                    completion:<#^(BOOL finished)completion#>]
    I am unable to fill in the toView: because of those missing references.

    What would you recommend? IS it even good to solve thi by action target?

    Thanks.
     
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  2. jnoxx, Dec 7, 2011
    Last edited by a moderator: Dec 8, 2011

    jnoxx macrumors 65816

    jnoxx

    Joined:
    Dec 29, 2010
    Location:
    Aartselaar // Antwerp // Belgium
    #2
    What I'd recommand, is make a category on your UIViewController, call it transitions, or whatever.
    Code something in there to make your sliding in terms like

    Code:
    - (void) SlideToNextViewController:(UIViewController*)theViewController {
 //Animations go here. like, self.navigationController push Blah.
 }
    Then call that in view 1.
    Make a pointer to your second view you are transferring to, just give the pointer to your method from your category, and it should be fine.
     
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  3. dejo, Dec 8, 2011

    dejo Moderator

    dejo

    Staff Member

    Joined:
    Sep 2, 2004
    Location:
    The Centennial State
    #3
    transitionFromView:toView: is meant for animating view transitions within the same view controller. If you wish to animate to another view controller's view, perhaps consider presentModalViewController: in conjunction with modalTransitionStyle.
     
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