Observe typealiases properties about rxswift HOT 3 CLOSED

It's funny, but I've written unit test about that case yesterday.

func testObserveWeak_ObserveCGRect() {
        var root: HasStrongProperty! = HasStrongProperty()

        let latest = RxMutableBox<CGRect?>(nil)

        XCTAssertTrue(latest.value == nil)

        root.rx_observeWeakly("frame")
            >- subscribeNext { (n: NSValue?) in
                if let n = n {
                    var frameValue = CGRect(x: 0, y: 0, width: 0, height: 0)
                    n.getValue(&frameValue)
                    latest.value = frameValue
                }
                else {
                    latest.value = nil
                }
            }
     ...

CGRect becomes in KVO world NSValue, and it's not CGRect, so that's why it's nil.

Having said that, I think I can actually improve this and internally unwrap CGRect and CGPoint so it should work when you do

nibView.rx_observe("bounds") as Observable<CGRect?>
        obs >- subscribeNext { bounds in
            println(bounds)
        }

Just didn't came to my attention :)

Let me know does that work.

I think I know a way to improve this for next release, but I will need to investigate more.

from rxswift.

Also, be careful, I think UIView classes aren't officially KVO compliant, but on the other hand, I doubt Apple will ever make them not compliant :p

from rxswift.

I've added official support for observing CGRect, CGSize and CGPoint. There are specializations that handle those cases.

It's even documented now :)

https://github.com/kzaher/RxSwift/blob/master/Documentation/GettingStarted.md#observing-structs

Closing this issue, let me know if you have any further problems.

from rxswift.