在拖放编辑模式下，UITableViewCell不会超出其行

Question

I'm following this official documentation by Apple . I'm trying to implement the drag and drop functionality on my UITableView . The problem is, that the rows won't move pass their rows. As you can see, they always bounce back:

Here is my code:

func tableView(tableView: UITableView, moveRowAtIndexPath sourceIndexPath: NSIndexPath, toIndexPath destinationIndexPath: NSIndexPath)
{
    // This gets called, when I reach a UITableViewCell above or below
    // the one UITableViewCell I'm dragging around. This is the part
    // where it always snaps back I think.
}

func tableView(tableView: UITableView, targetIndexPathForMoveFromRowAtIndexPath sourceIndexPath: NSIndexPath, toProposedIndexPath proposedDestinationIndexPath: NSIndexPath) -> NSIndexPath
{
    return proposedDestinationIndexPath
}

I'm using the DZNEmptyDataSet library and am not quite sure, if this meddles with the original functionality of the UITableView .

What am I missing here?

EDIT: I have created a new ViewController with a TableView in my project and it behaves exactly the same. If I try to implement this functionality in a new Project however, it simply works as intended.

Answer 1

The 'problem' was another library MMDrawerController . When enabling editing on my TableView I have to disable the MMDrawerController gestures. Here the code the fixed my problem:

///
/// Enable edit mode
///
func editEntries()
{
    self.disableDrawerFunctionality()
    self.tableView.setEditing(true, animated: true)
    self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Fertig", style: .Plain, target: self, action: "finishedEditing:")
}

func finishedEditing(sender: AnyObject)
{
    self.tableView.setEditing(false, animated: true)
    self.navigationItem.rightBarButtonItem = self.barButtonItemEdit
    self.enableDrawerFunctionality()
}

// MARK: - Toggle Drawer functionalities

///
/// While in TableView edit mode: Be sure to disable the MMDrawer gestures, since the gestures will colide
/// with gestures of the TableView
///
func enableDrawerFunctionality()
{
    mm_drawerController.openDrawerGestureModeMask = .PanningCenterView
    mm_drawerController.closeDrawerGestureModeMask = .PanningDrawerView | .PanningCenterView
}

///
/// When leaving TableView edit mode: Re-enable the MMDrawer gestures after finishing editting the TableView
///
func disableDrawerFunctionality()
{
    mm_drawerController.openDrawerGestureModeMask = .None
    mm_drawerController.closeDrawerGestureModeMask = .None
}

Here the part of their readme which caught my attention:

You are free to set whatever combination you want for opening and closing. Note that these gestures may impact touches sent to the child view controllers, so be sure to use these appropriately for your application. For example, you wouldn't want MMOpenDrawerGestureModePanningCenterView set if a MKMapView is your center view controller, since it would intercept the pan meant for moving around the map.