双击手势显示菜单列表 - Swift3

Question

我是IOS的新手，我试图在UIView的双击上显示按钮列表。我有以下代码来捕捉双击手势：

Private Sub okButton_Click()
Dim i As Double, dt1 As String, dtt1 As String
Dim dt2 As String, dtt2 As String
dt1 = ComboBox1.Value
dtt1 = CDate(dt1)
dt2 = ComboBox2.Value
dtt2 = CDate(dt2)
Debug.Print dtt2
For i = 2 To 6724
If Range("A" & i).Value >= dtt1 And Range("A", i).Value <= dtt2 Then
Rows(i).Select
With Selection.Interior
.ColorIndex = 36
.Pattern = xlSolid
End With
End If
Next
End Sub

我需要设计一个面板来显示按钮列表，例如开始，停止和暂停。有人可以指导我如何在敲击位置设计面板吗？

Answer 1

您需要使用UITapGestureRecognizer而不是UILongPressGestureRecognizer。将UITapGestureRecognizer设为numberOfTapsRequired至2。

let menuTap = UITapGestureRecognizer(target: self, action: #selector(showMenuPanel(_:)))
menuTap.numberOfTapsRequired = 2

//No need to set isUserInteractionEnabled to true because by default it is true for `UIView`
//self.view.isUserInteractionEnabled = true 
self.view!.addGestureRecognizer(menuTap)

像这样添加tapGesture的动作方法。

func showMenuPanel(_ recognizer: UITapGestureRecognizer) {
    print("TESTPANEL")
    let point = recognizer.location(in: self.view)
    //Get your view from nib
    let view = CustomView()
    //set its origin to this point
    view.frame.origin = point
    //add your view in self.view
    self.view.addSubview(view)
}