Fix dismiss swizzling

Framework/Sources/FloatingPanel.swift

@@ -411,8 +411,10 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
                 viewcontroller.delegate?.floatingPanelDidEndDraggingToRemove(viewcontroller, withVelocity: velocity)
                 self.startRemovalAnimation(with: velocityVector) { [weak self] in
                     guard let self = self else { return }
-                    self.viewcontroller.dismiss(animated: false)
-                    self.viewcontroller.delegate?.floatingPanelDidEndRemove(self.viewcontroller)
+                    self.viewcontroller.dismiss(animated: false, completion: { [weak self] in
+                        guard let self = self else { return }
+                        self.viewcontroller.delegate?.floatingPanelDidEndRemove(self.viewcontroller)
+                    })
                 }
                 return
             }

Framework/Sources/FloatingPanelController.swift

@@ -451,10 +451,26 @@ public extension UIViewController {
         // Implementation will be replaced by IMP of self.dismiss(animated:completion:)
     }
     @objc public func fp_dismiss(animated flag: Bool, completion: (() -> Void)? = nil) {
-        if let fpc = parent as? FloatingPanelController, fpc.parent != nil {
-            fpc.removePanelFromParent(animated: flag, completion: completion)
-        } else {
-            self.fp_original_dismiss(animated: flag, completion: completion)
+        // Call dismiss(animated:completion:) to a content view controller
+        if let fpc = parent as? FloatingPanelController {
+            if fpc.presentingViewController != nil {
+                self.fp_original_dismiss(animated: flag, completion: completion)
+            } else {
+                fpc.removePanelFromParent(animated: flag, completion: completion)
+            }
+            return
         }
+        // Call dismiss(animated:completion:) to FloatingPanelController directly
+        if let fpc = self as? FloatingPanelController {
+            if fpc.presentingViewController != nil {
+                self.fp_original_dismiss(animated: flag, completion: completion)
+            } else {
+                fpc.removePanelFromParent(animated: flag, completion: completion)
+            }
+            return
+        }
+
+        // For other view controllers
+        self.fp_original_dismiss(animated: flag, completion: completion)
     }
 }