diff options
Diffstat (limited to 'modules/expo-scroll-forwarder/ios')
-rw-r--r-- | modules/expo-scroll-forwarder/ios/ExpoScrollForwarderView.swift | 43 |
1 files changed, 30 insertions, 13 deletions
diff --git a/modules/expo-scroll-forwarder/ios/ExpoScrollForwarderView.swift b/modules/expo-scroll-forwarder/ios/ExpoScrollForwarderView.swift index 15993ef29..e6ebef1d3 100644 --- a/modules/expo-scroll-forwarder/ios/ExpoScrollForwarderView.swift +++ b/modules/expo-scroll-forwarder/ios/ExpoScrollForwarderView.swift @@ -9,7 +9,7 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate { } } - private var rctScrollView: RCTScrollView? + private var scrollView: UIScrollView? private var rctRefreshCtrl: RCTRefreshControl? private var cancelGestureRecognizers: [UIGestureRecognizer]? private var animTimer: Timer? @@ -68,7 +68,7 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate { } @IBAction func callOnPan(_ sender: UIPanGestureRecognizer) { - guard let rctsv = self.rctScrollView, let sv = rctsv.scrollView else { + guard let sv = self.scrollView else { return } @@ -113,7 +113,7 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate { } func startDecayAnimation(_ translation: CGFloat, _ velocity: CGFloat) { - guard let sv = self.rctScrollView?.scrollView else { + guard let sv = self.scrollView else { return } @@ -160,32 +160,49 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate { return offset } - - func tryFindScrollView() { - guard let scrollViewTag = scrollViewTag else { - return + + private func findScrollView(in view: UIView, foundCount: Int) -> UIScrollView? { + var foundCount = foundCount + if let sv = view as? UIScrollView { return sv } + for child in view.subviews { + if let found = findScrollView(in: child, foundCount: foundCount) { + if foundCount == 1 { + print("found sv: \(found)") +// return found + } else { + print("found sv: \(found)") + foundCount += 1 + } + } } + return nil + } + func tryFindScrollView() { // Before we switch to a different scrollview, we always want to remove the cancel gesture recognizer. // Otherwise we might end up with duplicates when we switch back to that scrollview. self.removeCancelGestureRecognizers() + + guard let sv = self.findScrollView(in: self.superview!.superview!.superview!, foundCount: 0) else { + print("⚠️ ExpoScrollForwarder: couldn’t find UIScrollView under tag \(tag)") + return + } - self.rctScrollView = self.appContext? - .findView(withTag: scrollViewTag, ofType: RCTScrollView.self) - self.rctRefreshCtrl = self.rctScrollView?.scrollView.refreshControl as? RCTRefreshControl + self.scrollView = sv + self.rctRefreshCtrl = sv.refreshControl as? RCTRefreshControl self.addCancelGestureRecognizers() } func addCancelGestureRecognizers() { self.cancelGestureRecognizers?.forEach { r in - self.rctScrollView?.scrollView?.addGestureRecognizer(r) + self.scrollView?.addGestureRecognizer(r) } } func removeCancelGestureRecognizers() { self.cancelGestureRecognizers?.forEach { r in - self.rctScrollView?.scrollView?.removeGestureRecognizer(r) + self.scrollView?.removeGestureRecognizer(r) } } @@ -202,7 +219,7 @@ class ExpoScrollForwarderView: ExpoView, UIGestureRecognizerDelegate { } func scrollToOffset(_ offset: Int, animated: Bool = true) { - self.rctScrollView?.scroll(toOffset: CGPoint(x: 0, y: offset), animated: animated) + self.scrollView?.scrollRectToVisible(CGRect(x: 0, y: offset, width: 0, height: 0), animated: animated) } func stopTimer() { |