Call function from other view (stupid question)

[peejavery]

How do I access the "parent" view from a pushed view? I want to call a function from the view that pushed the current view into place.

I thought I might have been close with the following code, but apparently it isn't anything close.

[[[self navigationController] PARENTVIEW] myFunction];

[Stitch]

When you create the view you need to pass through who the parent is.

The easiest way to see this in action is in the BubbleLevel source code.

Look at the following line in the LevelViewController:

levelView = [[LevelView alloc] initWithFrame:applicationFrame viewController:self];

Here you can see that it passes the viewController "self". So now the view knows who is the parent.

Check the LevelView.h and .m files for more information on how to correctly set this up.

IMPORTANT: Do NOT add [viewController release]; to the dealloc of the view or you will crash your app.

I use "self.viewController = nil;" instead.

[peejavery]

But, that example doesn't have anything to do with pushing view controllers. I need the pushed window to access the window that pushed it.

[Stitch]

Have you even tried?

It will work exactly the same. Just pass the view controller (self) at the time of creating it so it knows who started it.

I'm sorry but I am not sure of your programming level.

[peejavery]

I have tried all sorts of working with that code. However, it just keeps throwing me errors. I will have to come up with some other sort of work-around. Maybe something to do with modal views.

Originally Posted by Stitch

I'm sorry but I am not sure of your programming level.

Objective-C is rather new to me. I have been programming for Windows systems for about 9 years. I'm on the moderating staff over at CodeGuru.

[peejavery]

Thanks for all you help Stitch!

I ended up passing it into a custom method on the pushed view controller.

- (void)setParent: (UIViewController *)viewController {
    parentView = viewController;
}