Created
January 28, 2020 08:12
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| override func didMoveToSuperview() { | |
| super.didMoveToSuperview() | |
| addObserver(.contentOffset) | |
| addObserver(.panGesture) | |
| } | |
| //MARK: - observers | |
| /// Add scroll view content y offset and scroll view panGesture observers | |
| /// - Parameter observer: RefreshControl.Observer type | |
| private func addObserver(_ observer : Observer){ | |
| guard let scrollView = containerScrollView else {return} | |
| switch observer { | |
| case .contentOffset: | |
| scrollView.rx.contentOffset.bind(onNext: {[weak self] offset in | |
| self?.scrollViewContentYOffset = -offset.y | |
| self?.setNeedsDisplay() | |
| }).disposed(by: bag) | |
| break | |
| case .panGesture: | |
| scrollView.panGestureRecognizer.rx.event.bind(onNext: {[weak self] panGesture in | |
| self?.xPositionOfPan = panGesture.location(in: self?.containerScrollView).x | |
| self?.setNeedsDisplay() | |
| switch panGesture.state{ | |
| case .cancelled,.failed,.ended: | |
| if (self?.scrollViewContentYOffset)! > (self?.thresholdDrag)!{ | |
| self?.refreshingStatus = true | |
| self?.setNeedsDisplay() | |
| self?.animateRefreshCircle() | |
| self?.onRefreshing() | |
| } | |
| break | |
| default: | |
| break | |
| } | |
| }).disposed(by: bag) | |
| break | |
| } | |
| } |
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