Adds `rx_selected` to `UIControl`.

RxCocoa/iOS/UIControl+Rx.swift

@@ -25,6 +25,15 @@ extension UIControl {
         }.asObserver()
     }
 
+    /**
+     Bindable sink for `selected` property.
+     */
+    public var rx_selected: AnyObserver<Bool> {
+        return UIBindingObserver(UIElement: self) { control, selected in
+            control.selected = selected
+        }.asObserver()
+    }
+
     /**
     Reactive wrapper for target action pattern.
     

Tests/RxCocoaTests/Control+RxTests+UIKit.swift

@@ -27,6 +27,22 @@ extension ControlTests {
 
         XCTAssert(subject.enabled == false, "Expected enabled set to false")
     }
+
+    func testSubscribedSelectedToTrue() {
+        let subject = UIControl()
+        let disposable = Observable.just(true).subscribe(subject.rx_selected)
+        defer { disposable.dispose() }
+
+        XCTAssert(subject.selected == true, "Expected selected set to true")
+    }
+
+    func testSubscribeSelectedToFalse() {
+        let subject = UIControl()
+        let disposable = Observable.just(false).subscribe(subject.rx_selected)
+        defer { disposable.dispose() }
+
+        XCTAssert(subject.selected == false, "Expected selected set to false")
+    }
 }
 
 // UITextField