Ios 点击MKAnnotationView时显示UIMenuController

这就是我在代码中所做的：

func mapView(_ mapView: MKMapView, didSelect view: MKAnnotationView) {
    print("selectedview")

    let controller = UIMenuController.shared
    let item = UIMenuItem(title: "Usun", action: #selector(deletePointer))
    controller.menuItems = [item]
    controller.setTargetRect(mapView.frame, in: mapView)
    controller.setMenuVisible(true, animated: true)
}

@objc func deletePointer() {
    print("deleted")
}

但菜单并没有出现。方法被调用，因为已打印

selectedView

---

您的ViewController必须能够成为第一响应者：

override func canBecomeFirstResponder() -> Bool {
    return true
}

然后像这样设置目标rect（其中

view

是注释视图）：

---

对不起，我的代码是Swift 2代码…：）

对于Swift 5.0，它应该是：

extension  mapViewController
{

// Your View Controller
override var canBecomeFirstResponder: Bool
{
    return true
}


func mapView(_ mapView: MKMapView, didSelect annoView: MKAnnotationView )
{
    let controller = UIMenuController.shared
    let item = UIMenuItem(title: "Menu Test1", action: #selector(menuTestFunc))
    controller.menuItems = [item]

    if #available(iOS 13.0, *)
    {
        UIMenuController.shared.showMenu( from: self.view, rect: annoView.frame )
    }
    else
    {
        UIMenuController.shared.setTargetRect( annoView.frame, in: self.view )
        UIMenuController.shared.setMenuVisible( true, animated: true )
    }
}


@objc func menuTestFunc()
{
    print( "menuTestFunc() called" )
}

} //    mapViewController extensions

extension  mapViewController
{

// Your View Controller
override var canBecomeFirstResponder: Bool
{
    return true
}


func mapView(_ mapView: MKMapView, didSelect annoView: MKAnnotationView )
{
    let controller = UIMenuController.shared
    let item = UIMenuItem(title: "Menu Test1", action: #selector(menuTestFunc))
    controller.menuItems = [item]

    if #available(iOS 13.0, *)
    {
        UIMenuController.shared.showMenu( from: self.view, rect: annoView.frame )
    }
    else
    {
        UIMenuController.shared.setTargetRect( annoView.frame, in: self.view )
        UIMenuController.shared.setMenuVisible( true, animated: true )
    }
}


@objc func menuTestFunc()
{
    print( "menuTestFunc() called" )
}

} //    mapViewController extensions