Completion handler for property in swift

Question

I'm trying to use a control called MZFormSheetController in swift. In the example given it provides a property as a completion handler, if I understand correctly, but I'm having difficulties translating it in Swift. Any help would be appreciated.

This is in the obj-c example.

controller.didPresentContentViewControllerHandler = ^(UIViewController *content) {
    NSLog(@"DID PRESENT");
    [self setNeedsStatusBarAppearanceUpdate];
};

I tried many variations and did an extensive search in the web but I could not find anything that could help me so I'm stuck here

controller.didPresentContentViewControllerHandler = (content:UIViewController() -> () {
    println("did present1")
})

Here are the relevant docs: Cocoa Docs:: MZFormSheetPresentationController:: didPresentContentViewControllerHandler

score 2 · Answer 1 · answered Jun 01 '15 at 11:55

If you need to access the view controller then do it like this,

controller.didPresentContentViewControllerHandler = {
    controller in
    println("did present1")
}

Or if you dont need the reference to the view controller, you can simply do,

let controller = Controller()
controller.didPresentContentViewControllerHandler = {
    _ in
     println("did present1")
}

score 1 · Accepted Answer · edited Jun 01 '15 at 11:57

1

Try add a variable after opening brace

controller.didPresentContentViewControllerHandler = {
    vc in
    println("did present1")
})

edited Jun 01 '15 at 11:57

Mr. Polywhirl

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answered Jun 01 '15 at 11:54

Greg

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Completion handler for property in swift

2 Answers2