Missing pan gestures (edit: in UIPageViewController)

[GerdC]

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Short description

no pan gestures call methods floatingPanelDidMove and floatingPanelWillBeginDragging when not in state .full

Expected behavior

when panning, calls to the delegate methods floatingPanelDidMove, floatingPanelWillBeginDragging and floatingPanelDidEndDragging are expected, the floatig panel should move visually.

Actual behavior

The expected behaviour happens only in state .full.

in state .half and .pin, only floatingPanelDidEndDragging is called, the FloatingPanelController does not move.

Steps to reproduce

I have a tabBarViewController containing a UIViewController.
This UIViewController calls fpc.addPanel(toParent: self, animated: true)
The contentViewController is a tableViewController.

The visual size does not matter: Using
public func insetFor(position: FloatingPanelPosition) -> CGFloat? {
switch position {
case .full: return 16.0
case .half: return 702.0
default: return nil
}
}
.half is almost as long as .full, is doesn't make a difference.

The mntioned delegate methods floatingPanelDidMove, floatingPanelWillBeginDragging and floatingPanelDidEndDragging have no implementation apart from printing debug lines to the console.

Code example that reproduces the issue

Environment

Library version
FloatingPanel (1.4.0)
Installation method

• CocoaPods
• Carthage
• Git submodules

iOS version(s)
12.1

Xcode version
10.1

[GerdC]

Found the solution:

The viewController that shows the FloatingPanelController must not be a page of a pageViewController. (it was the only page)

You might add this as a precondition.

[scenee]

@GerdC
I confirmed this issue is resolved by FloatingPanelControllerDelegate.floatingPanel(_:shouldRecognizeSimultaneouslyWith:)

Here is a sample code 👍

let page1 = FloatingPanelController(delegate: self)
page1.view.backgroundColor = .blue
page1.show()
...

func floatingPanel(_ vc: FloatingPanelController, shouldRecognizeSimultaneouslyWith gestureRecognizer: UIGestureRecognizer) -> Bool {
    return true
}