RxSwift/Documentation/API.md

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API
===
## RxSwift supported operators
In some cases there are multiple aliases for the same operator, because on different platforms / implementations, the same operation is sometimes named differently. Sometimes this is because of historical reasons, while sometimes because of reserved language keywords.
When lacking a strong community consensus, RxSwift will usually include multiple aliases.
Operators are stateless by default.
#### Creating Observables
* [`asObservable`](http://reactivex.io/documentation/operators/from.html)
* [`create`](http://reactivex.io/documentation/operators/create.html)
* [`deferred`](http://reactivex.io/documentation/operators/defer.html)
* [`empty`](http://reactivex.io/documentation/operators/empty-never-throw.html)
* [`error`](http://reactivex.io/documentation/operators/empty-never-throw.html)
* [`toObservable` (array)](http://reactivex.io/documentation/operators/from.html)
* [`interval`](http://reactivex.io/documentation/operators/interval.html)
* [`never`](http://reactivex.io/documentation/operators/empty-never-throw.html)
* [`just`](http://reactivex.io/documentation/operators/just.html)
* [`of`](http://reactivex.io/documentation/operators/from.html)
* [`range`](http://reactivex.io/documentation/operators/range.html)
* [`repeatElement`](http://reactivex.io/documentation/operators/repeat.html)
* [`timer`](http://reactivex.io/documentation/operators/timer.html)
#### Transforming Observables
* [`buffer`](http://reactivex.io/documentation/operators/buffer.html)
* [`flatMap`](http://reactivex.io/documentation/operators/flatmap.html)
* [`flatMapFirst`](http://reactivex.io/documentation/operators/flatmap.html)
* [`flatMapLatest`](http://reactivex.io/documentation/operators/flatmap.html)
* [`map`](http://reactivex.io/documentation/operators/map.html)
* [`scan`](http://reactivex.io/documentation/operators/scan.html)
* [`window`](http://reactivex.io/documentation/operators/window.html)
#### Filtering Observables
* [`debounce` / `throttle`](http://reactivex.io/documentation/operators/debounce.html)
* [`distinctUntilChanged`](http://reactivex.io/documentation/operators/distinct.html)
* [`elementAt`](http://reactivex.io/documentation/operators/elementat.html)
* [`filter`](http://reactivex.io/documentation/operators/filter.html)
* [`sample`](http://reactivex.io/documentation/operators/sample.html)
* [`skip`](http://reactivex.io/documentation/operators/skip.html)
* [`take`](http://reactivex.io/documentation/operators/take.html)
* [`takeLast`](http://reactivex.io/documentation/operators/takelast.html)
* [`single`](http://reactivex.io/documentation/operators/first.html)
#### Combining Observables
* [`merge`](http://reactivex.io/documentation/operators/merge.html)
* [`startWith`](http://reactivex.io/documentation/operators/startwith.html)
* [`switchLatest`](http://reactivex.io/documentation/operators/switch.html)
* [`combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html)
* [`zip`](http://reactivex.io/documentation/operators/zip.html)
#### Error Handling Operators
* [`catch`](http://reactivex.io/documentation/operators/catch.html)
* [`retry`](http://reactivex.io/documentation/operators/retry.html)
* [`retryWhen`](http://reactivex.io/documentation/operators/retry.html)
#### Observable Utility Operators
* [`delaySubscription` / `delay`](http://reactivex.io/documentation/operators/delay.html)
* [`do` / `doOnNext`](http://reactivex.io/documentation/operators/do.html)
* [`observeOn` / `observeSingleOn`](http://reactivex.io/documentation/operators/observeon.html)
* [`subscribe`](http://reactivex.io/documentation/operators/subscribe.html)
* [`subscribeOn`](http://reactivex.io/documentation/operators/subscribeon.html)
* [`timeout`](http://reactivex.io/documentation/operators/timeout.html)
* [`using`](http://reactivex.io/documentation/operators/using.html)
* debug
#### Conditional and Boolean Operators
* [`amb`](http://reactivex.io/documentation/operators/amb.html)
* [`skipWhile`](http://reactivex.io/documentation/operators/skipwhile.html)
* [`skipUntil`](http://reactivex.io/documentation/operators/skipuntil.html)
* [`takeUntil`](http://reactivex.io/documentation/operators/takeuntil.html)
* [`takeWhile`](http://reactivex.io/documentation/operators/takewhile.html)
#### Mathematical and Aggregate Operators
* [`concat`](http://reactivex.io/documentation/operators/concat.html)
* [`reduce` / `aggregate`](http://reactivex.io/documentation/operators/reduce.html)
* [`toArray`](http://reactivex.io/documentation/operators/to.html)
#### Connectable Observable Operators
* [`multicast`](http://reactivex.io/documentation/operators/publish.html)
* [`publish`](http://reactivex.io/documentation/operators/publish.html)
* [`refCount`](http://reactivex.io/documentation/operators/refcount.html)
* [`replay`](http://reactivex.io/documentation/operators/replay.html)
* [`shareReplay`](http://reactivex.io/documentation/operators/replay.html)
Creating new operators is also pretty straightforward.
## RxCocoa extensions
**iOS / OSX**
```swift
extension Reactive where Base: NSObject {
public var deallocated: Observable<Void> {}
#if !DISABLE_SWIZZLING
public var deallocating: Observable<Void> {}
#endif
}
```
```swift
extension Reactive where Base: NSObject {
public func observe<Element>(
type: E.Type,
_ keyPath: String,
options: NSKeyValueObservingOptions = .New | .Initial,
retainSelf: Bool = true
) -> Observable<Element?> {}
#if !DISABLE_SWIZZLING
public func observeWeakly<Element>(
type: E.Type,
_ keyPath: String,
options: NSKeyValueObservingOptions = .New | .Initial
) -> Observable<Element?> {}
#endif
}
```
```swift
extension Reactive where Base: NSURLSession {
public func response(request: NSURLRequest) -> Observable<(NSData, NSURLResponse)> {}
public func data(request: NSURLRequest) -> Observable<NSData> {}
public func JSON(request: NSURLRequest) -> Observable<AnyObject> {}
public func JSON(URL: NSURL) -> Observable<AnyObject> {}
}
```
```swift
extension Reactive where Base: NSNotificationCenter {
public func notification(name: String, object: AnyObject?) -> Observable<NSNotification> {}
}
```
```swift
class DelegateProxy {
public func observe(selector: Selector) -> Observable<[AnyObject]> {}
}
```
```swift
extension Reactive where Base: CLLocationManager {
public var delegate: DelegateProxy {}
public var didUpdateLocations: Observable<[CLLocation]> {}
public var didFailWithError: Observable<NSError> {}
public var didFinishDeferredUpdatesWithError: Observable<NSError> {}
public var didPauseLocationUpdates: Observable<Void> {}
public var didResumeLocationUpdates: Observable<Void> {}
public var didUpdateHeading: Observable<CLHeading> {}
public var didEnterRegion: Observable<CLRegion> {}
public var didExitRegion: Observable<CLRegion> {}
public var didDetermineStateForRegion: Observable<(state: CLRegionState, region: CLRegion)> {}
public var monitoringDidFailForRegionWithError: Observable<(region: CLRegion?, error: NSError)> {}
public var didStartMonitoringForRegion: Observable<CLRegion> {}
public var didRangeBeaconsInRegion: Observable<(beacons: [CLBeacon], region: CLBeaconRegion)> {}
public var rangingBeaconsDidFailForRegionWithError: Observable<(region: CLBeaconRegion, error: NSError)> {}
public var didVisit: Observable<CLVisit> {}
public var didChangeAuthorizationStatus: Observable<CLAuthorizationStatus> {}
}
```
**iOS**
```swift
extension Reactive where Base: UIControl {
public func controlEvent(controlEvents: UIControlEvents) -> ControlEvent<Void> {}
public var enabled: ObserverOf<Bool> {}
}
```
```swift
extension Reactive where Base: UIButton {
public var tap: ControlEvent<Void> {}
}
```
```swift
extension Reactive where Base: UITextField {
public var text: ControlProperty<String> {}
}
```
```swift
extension Reactive where Base: UITextView {
override func createDelegateProxy() -> RxScrollViewDelegateProxy {}
public var text: ControlProperty<String> {}
}
```
```swift
extension Reactive where Base: UISearchBar {
public var delegate: DelegateProxy {}
public var searchText: ControlProperty<String> {}
}
```
```swift
extension Reactive where Base: UILabel {
public var text: ObserverOf<String> {}
}
```
```swift
extension Reactive where Base: UIDatePicker {
public var date: ControlProperty<NSDate> {}
}
```
```swift
extension Reactive where Base: UIImageView {
public var image: ObserverOf<UIImage!> {}
public func imageAnimated(transitionType: String?) -> AnyObserver<UIImage?>
}
```
```swift
extension Reactive where Base: UIScrollView {
public var delegate: DelegateProxy {}
public func setDelegate(delegate: UIScrollViewDelegate) {}
public var contentOffset: ControlProperty<CGPoint> {}
}
```
```swift
extension Reactive where Base: UIBarButtonItem {
public var tap: ControlEvent<Void> {}
}
```
```swift
extension Reactive where Base: UISlider {
public var value: ControlProperty<Float> {}
}
```
```swift
extension Reactive where Base: UITableView {
public var dataSource: DelegateProxy {}
public func setDataSource(dataSource: UITableViewDataSource) -> Disposable {}
public func itemsWithCellFactory(source: O)(cellFactory: (UITableView, Int, S.Iterator.Element) -> UITableViewCell) -> Disposable {}
public func itemsWithCellIdentifier(cellIdentifier: String, cellType: Cell.Type = Cell.self)(source: O)(configureCell: (Int, S.Iterator.Element, Cell) -> Void) -> Disposable {}
public func itemsWithDataSource(dataSource: DataSource)(source: O) -> Disposable {}
public var itemSelected: ControlEvent<IndexPath> {}
public var itemDeselected: ControlEvent<IndexPath> {}
public var itemInserted: ControlEvent<IndexPath> {}
public var itemDeleted: ControlEvent<IndexPath> {}
public var itemMoved: ControlEvent<ItemMovedEvent> {}
// This method only works in case one of the `rx.itemsWith*` methods was used, or data source implements `SectionedViewDataSourceType`
public func modelSelected<T>(modelType: T.Type) -> ControlEvent<T> {}
// This method only works in case one of the `rx.itemsWith*` methods was used, or data source implements `SectionedViewDataSourceType`
public func modelDeselected<T>(modelType: T.Type) -> ControlEvent<T> {}
}
```
```swift
extension Reactive where Base: UICollectionView {
public var dataSource: DelegateProxy {}
public func setDataSource(dataSource: UICollectionViewDataSource) -> Disposable {}
public func itemsWithCellFactory(source: O)(cellFactory: (UICollectionView, Int, S.Iterator.Element) -> UICollectionViewCell) -> Disposable {}
public func itemsWithCellIdentifier(cellIdentifier: String, cellType: Cell.Type = Cell.self)(source: O)(configureCell: (Int, S.Iterator.Element, Cell) -> Void) -> Disposable {}
public func itemsWithDataSource(dataSource: DataSource)(source: O) -> Disposable {}
public var itemSelected: ControlEvent<IndexPath> {}
public var itemDeselected: ControlEvent<IndexPath> {}
// This method only works in case one of the `rx.itemsWith*` methods was used, or data source implements `SectionedViewDataSourceType`
public func modelSelected<T>(modelType: T.Type) -> ControlEvent<T> {}
// This method only works in case one of the `rx.itemsWith*` methods was used, or data source implements `SectionedViewDataSourceType`
public func modelSelected<T>(modelType: T.Type) -> ControlEvent<T> {}
}
```
```swift
extension Reactive where Base: UIGestureRecognizer {
public var event: ControlEvent<UIGestureRecognizer> {}
}
```
```swift
extension Reactive where Base: UIImagePickerController {
public var didFinishPickingMediaWithInfo: Observable<[String : AnyObject]> {}
public var didCancel: Observable<()> {}
}
```
```swift
extension Reactive where Base: UISegmentedControl {
public var value: ControlProperty<Int> {}
}
```
```swift
extension Reactive where Base: UISwitch {
public var value: ControlProperty<Bool> {}
}
```
```swift
extension Reactive where Base: UIActivityIndicatorView {
public var animating: AnyObserver<Bool> {}
}
```
```swift
extension Reactive where Base: UINavigationItem {
public var title: AnyObserver<String?> {}
}
```
**OSX**
```swift
extension Reactive where Base: NSControl {
public var controlEvent: ControlEvent<()> {}
public var enabled: AnyObserver<Bool> {}
}
```
```swift
extension Reactive where Base: NSSlider {
public var value: ControlProperty<Double> {}
}
```
```swift
extension Reactive where Base: NSButton {
public var tap: ControlEvent<Void> {}
public var state: ControlProperty<Int> {}
}
```
```swift
extension Reactive where Base: NSImageView {
public var image: ObserverOf<NSImage?> {}
public func imageAnimated(transitionType: String?) -> AnyObserver<NSImage?>
}
```
```swift
extension Reactive where Base: NSTextField {
public var delegate: DelegateProxy {}
public var text: ControlProperty<String> {}
}
```
```swift
extension Reactive where Base: UITabBarItem {
public var badgeValue: AnyObserver<String?> {}
}
```
```swift
extension Reactive where Base: UITabBar {
public var didSelectItem: ControlEvent<UITabBarItem> {}
public var willBeginCustomizing: ControlEvent<[UITabBarItem]> {}
public var didBeginCustomizing: ControlEvent<[UITabBarItem]> {}
public var willEndCustomizing: ControlEvent<(items: [UITabBarItem], changed: Bool)> {}
public var didEndCustomizing: ControlEvent<(items: [UITabBarItem], changed: Bool)> {}
}
```