1.搜：
swift click else where dismiss menu
swift click elsewhere dismiss menu
参考：
2.搜：
swift overlay view
参考：
代码：
addDropdownView = UITableView(frame: addDropdownFrame)
addDropdownView.separatorInset = UIEdgeInsetsMake(0, 0, 0, 0)
addDropdownView.backgroundColor = UIColor.yellowColor()
//add border
addDropdownView.layer.masksToBounds = true
addDropdownView.layer.borderColor = UIColor.lightGrayColor().CGColor
addDropdownView.layer.borderWidth = 1.0
super.init(frame:addDropdownFrame)
addDropdownView.delegate = self
addDropdownView.dataSource = self
//self.addSubview(addDropdownView)
//self.bringSubviewToFront(addDropdownView)
// click elsewhere dismiss add dropdownlist
overlayView = UIView(frame: UIScreen.mainScreen().bounds)
overlayView.backgroundColor = UIColor.yellowColor()
overlayView.alpha = 0.6
addDropdownView.delegate = self
let tap = UITapGestureRecognizer(target: self, action: Selector("addDropdownListViewShouldDismiss"))
tap.numberOfTapsRequired = 1
overlayView.addGestureRecognizer(tap)
overlayView.addSubview(addDropdownView)
self.addSubview(overlayView)
func addDropdownListViewShouldDismiss() {
print("addDropdownListViewShouldDismiss: Overlay Tapped")
self.hidden = true
}结果不工作：
点击黄色区域，还是没有让下拉菜单消失
感觉是delegate的问题。
搜：
swift uitapgesturerecognizer not working
参考：
添加：
overlayView.userInteractionEnabled = true
结果：
好像起效果了，addDropdownListViewShouldDismiss调用到了：
但是好像我点击了2，3次，才调用到。。。
并且点击其他区域也还是进去对应字页面，没有响应到此处的tap。
加了tap.delegate和UIGestureRecognizerDelegate：
结果效果依旧：
虽然部分区域点击后，可以响应tap，但是还是需要点击三次左右才可以响应tap。
然后父view中把此view放到最前面：
self.view.addSubview(addDropdownListView)
self.view.bringSubviewToFront(addDropdownListView)问题依旧：
还是不能实现点击一次，就响应tap。
［解决过程］
1.搜：
swift multiple click response tap
参考：
2.
搜：
ios tap vs touch
参考：
后来：
把整个tap的代码，移动到主界面中：
就正常工作了：
单击一次，即可响应对应tap的函数。
3.
搜：
swift UITapGestureRecognizer super view
参考：
4.
搜：
swift super view block subview tap
参考：
5.swift superview capture subview tap
swift subview tap not capture whole screen
swift subview tap full screen
6.swift UITapGestureRecognizer pass to subview
最后用代码：
import UIKit
class MainViewController: UITabBarController, UIGestureRecognizerDelegate {
var titleLabel:UILabel!
var addDropdownListView:AddDropdownListView!
let mainTabs = ["消息", "通讯录", "文件", "收藏", "我"]
let dropdownListTitleArr = ["发起会话", "发起话题", "添加同事", "添加人脉"]
//var overlayView:UIView!
var tapRecognizer:UITapGestureRecognizer!
var searchButton:UIButton!
override func viewDidLoad() {
super.viewDidLoad()
NSLog("MainViewController viewDidLoad()")
self.view.backgroundColor = UIColor.whiteColor()
let statusView = UIView()
statusView.frame = CGRectMake(0, 0, CGRectGetWidth(self.view.bounds), STATUS_BAR_HEIGHT)
//statusView.backgroundColor = UIColor(hexString: "#ff3333")
statusView.backgroundColor = COLOR_MAIN
self.view.addSubview(statusView)
let tabbgView = UIView()
tabbgView.frame = CGRectMake(0, 20, CGRectGetWidth(self.view.bounds), NAVI_BAR_HEIGHT)
tabbgView.backgroundColor = COLOR_MAIN
//tabbgView.backgroundColor = UIColor.blackColor()
self.view.addSubview(tabbgView)
let addMenu = UIImage(named:"add_white_24x24.png")
let addButton = UIButton()
addButton.frame = CGRectMake(self.view.bounds.width - 54, 0, 44.0, NAVI_BAR_HEIGHT)
//addButton.addTarget(self, action:"toggleAddDropdownList:", forControlEvents:UIControlEvents.TouchUpInside)
addButton.addTarget(self, action:Selector("toggleAddDropdownList"), forControlEvents:UIControlEvents.TouchUpInside)
addButton.setImage(addMenu,forState:UIControlState.Normal)
tabbgView.addSubview(addButton)
let searchImage = UIImage(named:"search_24x24.png")
let searchFrame = CGRectMake(
addButton.frame.origin.x - 44,
0,
44.0,
NAVI_BAR_HEIGHT)
searchButton = UIButton()
searchButton.frame = searchFrame
searchButton.addTarget(self, action:"jumpToSearch:", forControlEvents:UIControlEvents.TouchUpInside)
searchButton.setImage(searchImage,forState:UIControlState.Normal)
tabbgView.addSubview(searchButton)
let addDropdownWidth:CGFloat = 200
let addDropdownFrame = CGRectMake(
self.view.bounds.width - addDropdownWidth,
STATUS_BAR_HEIGHT + NAVI_BAR_HEIGHT,
addDropdownWidth,
ADD_DROPDOWN_LIST_CELL_HEIGHT * 4)
print("addDropdownFrame=\(addDropdownFrame)")
addDropdownListView = AddDropdownListView(frame:addDropdownFrame)
addDropdownListView.hidden = true
self.view.addSubview(addDropdownListView)
self.view.bringSubviewToFront(addDropdownListView)
tapRecognizer = UITapGestureRecognizer(target: self, action: Selector("toggleAddDropdownList"))
tapRecognizer.numberOfTapsRequired = 1
tapRecognizer.delegate = self
}
//toggle add drop down list
func toggleAddDropdownList(){
addDropdownListView.hidden = !addDropdownListView.hidden
if !addDropdownListView.hidden {
self.view.addGestureRecognizer(tapRecognizer)
searchButton.enabled = false
}else {
self.view.removeGestureRecognizer(tapRecognizer)
searchButton.enabled = true
}
print("addDropdownListView.hidden=\(addDropdownListView.hidden)")
}
//jump to search view
func jumpToSearch(button : UIButton){
print("realy called jumpToSearch")
}
func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldReceiveTouch touch: UITouch) -> Bool {
print("touch=\(touch)")
print("touch.view=\(touch.view)")
//get touch/tap point/position in current (main) view
let touchPoint = touch.locationInView(self.view)
print("touchPoint=\(touchPoint)")
//check tap point in subview or not
if CGRectContainsPoint(addDropdownListView.frame, touchPoint){
// not intercept touch -> forward to subview: addDropdownListView
return false
}
else
{
// intercept touch -> forward to toggleAddDropdownList
return true
}
}
}实现了效果了：
点击其它区域后，当前弹出的，子视图，一个tableview，即可消失。
而点击到属于tableview视图范围内时，则可以正常传递touch给didSelectRowAtIndexPath
转载请注明：在路上 » ［已解决］swift如何实现点击弹出菜单之外的地方让弹出菜单消失