I'm trying to reproduce a simple timer with RxSwift.
I have a pause/play button
only that works for pause and resume.
gameTimer = Observable<NSInteger>.interval(1, scheduler: MainScheduler.instance)
.subscribeNext({ sec -> Void in
print("\(sec) s")
}).addDisposableTo(disposeBag!)
pauseResumeButton.rx_tap
.map{ !self.isRunning.value }
.startWith(true)
.bindTo( isRunning )
.addDisposableTo(disposeBag!)
isRunning
is an Variable<Bool
> obviously.
I can stop the timer settings disposeBag = nil
but I cannot pause it....itried to filter events but the count obviously continues to grow...
Can anyone help me? Thanks!
A little trick:
class ViewController: UIViewController {
let isRunning = Variable(true)
override func viewDidLoad() {
super.viewDidLoad()
isRunning.asObservable()
.debug("isRunning")
.flatMapLatest { isRunning in
isRunning ? Observable<Int>.interval(1, scheduler: MainScheduler.instance) : .empty()
}
.flatMapWithIndex { (int, index) in Observable.just(index) }
.debug("timer")
.subscribe()
.addDisposableTo(disposeBag)
navigationItem.rightBarButtonItem!.rx.tap
.subscribe(onNext: { [unowned self] in
self.isRunning.value = !self.isRunning.value
})
.addDisposableTo(disposeBag)
}
}
Result:
2016-12-17 20:53:11.408: timer -> subscribed
2016-12-17 20:53:11.414: isRunning -> subscribed
2016-12-17 20:53:11.415: isRunning -> Event next(true)
2016-12-17 20:53:12.503: timer -> Event next(0)
2016-12-17 20:53:13.488: timer -> Event next(1)
2016-12-17 20:53:14.488: timer -> Event next(2)
2016-12-17 20:53:15.488: timer -> Event next(3)
2016-12-17 20:53:16.154: isRunning -> Event next(false)
2016-12-17 20:53:23.155: isRunning -> Event next(true)
2016-12-17 20:53:24.223: timer -> Event next(4)
2016-12-17 20:53:25.229: timer -> Event next(5)
2016-12-17 20:53:26.228: timer -> Event next(6)
2016-12-17 20:53:27.220: timer -> Event next(7)
2016-12-17 20:53:28.225: timer -> Event next(8)
2016-12-17 20:53:29.221: timer -> Event next(9)
2016-12-17 20:53:29.971: isRunning -> Event next(false)