Prevent bouncing a scroll content in a panel animating

This issue happens when a panel interacts from tip to half in 'Show Tab Bar' -> 'Tab 3'.
2019-02-16 10:19:10 +09:00
parent 8f4c08d5b3
commit 81fd85e993
1 changed files with 12 additions and 0 deletions
@@ -517,7 +517,19 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate

        viewcontroller.delegate?.floatingPanelDidEndDragging(viewcontroller, withVelocity: velocity, targetPosition: targetPosition)

+        // Workaround: Disable a tracking scroll to prevent bouncing a scroll content in a panel animating
+        let isScrollEnabled = scrollView?.isScrollEnabled
+        if let scrollView = scrollView, targetPosition != .full {
+            scrollView.isScrollEnabled = false
+        }
+
        startAnimation(to: targetPosition, at: distance, with: velocity)
+
+        // Workaround: Reset `self.scrollView.isScrollEnabled`
+        if let scrollView = scrollView, targetPosition != .full,
+            let isScrollEnabled = isScrollEnabled {
+            scrollView.isScrollEnabled = isScrollEnabled
+        }
    }

    private func shouldStartRemovalAnimation(with velocityVector: CGVector) -> Bool {