未调用ItemSelected-Xamarin.iOS F#

我有一个

UICollectionViewController

定义如下：

    [<Register ("LandlordHome")>]
type LandlordHome (handle:IntPtr) = 
    inherit UICollectionViewController (handle)


    override x.ViewDidLoad () =
        base.ViewDidLoad ()

        let collectionViewDelegate = new CollectionViewFlowDelegate(new IntPtr())
        collectionViewDelegate.parent <- x

        x.CollectionView.Delegate <- collectionViewDelegate

    [<Register ("CollectionViewFlowDelegate")>]
type CollectionViewFlowDelegate (handle:IntPtr) = 
    inherit UICollectionViewDelegateFlowLayout (handle)

    let mutable parentViewController : UIViewController = null

    member this.parent 
        with get() = parentViewController 
        and set(value) = parentViewController <- value

    override x.ItemSelected(collectionView : UICollectionView, indexPath : NSIndexPath) = 
        let controller = new ChatControllerLandlord(new IntPtr())
        controller.GetListingId <- ""
        controller.GetPartnerId <- ""
        controller.GetLandlordId <- ""
        controller.GetPartnerName <- ""
        parentViewController.PresentViewController(controller,true,null)

这样做是为了覆盖

ItemSelected

方法，以便当我点击

UICollectionViewCell

时，执行其中的代码

---

然而，当我点击手机时，什么也没发生

我尝试了你的代码，找到了解决方法

修改

CollectionViewFlowDelegate

的构造方法如下：

let collectionViewDelegate = new CollectionViewFlowDelegate()
collectionViewDelegate.parent <- x
x.CollectionView.Delegate <- collectionViewDelegate


type CollectionViewFlowDelegate () = 
inherit UICollectionViewDelegateFlowLayout ()

让collectionViewDelegate=新的CollectionViewFlowDelegate（）
collectionViewDelegate.parent