Question

请查看我的代码并建议更正或我需要做的任何类型的代码更改，以便在选定的表格行上显示菜单。请帮助，我是iOS的新手。

import UIKit

class CutomerHomeTab: UITableViewController {

override func viewDidLoad() {
    super.viewDidLoad()

    addCustomMenuItems()

    }

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

func addCustomMenuItems() { //CUSTOM MENU IMPLEMENTED

    let menuController = UIMenuController.sharedMenuController()
    var newItems = menuController.menuItems ?? [UIMenuItem]()


    newItems.append(UIMenuItem(title: "Abort", action: MenuAction.Abort.selector()))
    newItems.append(UIMenuItem(title: "Accomplish", action: MenuAction.Accomplish.selector()))
    menuController.menuItems = newItems
}


enum MenuAction:String{
    case Accomplish = "Accomplish:"         //ENUMERATED DATA TYPES DECLARATION FOR MENUACTION
    case Abort = "Abort:"

                  //We need this awkward little conversion because «enum»'s can only have literals as raw value types. And «Selector»s aren't literal.
    func selector()->Selector{
        return Selector(self.rawValue)
                                                        //IMPLEMENTATIION OF       SELECTOR FUNCTION
    }        //END OF SELECTOR FUNCTION
}            //END OF ENUM DECLARATION

func Accomplish(sender:AnyObject?){
    print("Did something new!accomplished")     //FUNCTION FOR IMPLEMENTATION OF ACCOMPLISH
}
func Abort(sender:AnyObject?){
    print("Did something new!aborted")           //FUNCTION FOR IMPLEMENTATION OF ABORT
}


override func tableView(tableView: UITableView, canPerformAction action: Selector, forRowAtIndexPath indexPath: NSIndexPath, withSender sender: AnyObject?) -> Bool {//FUNCTION TO LET USER PERFORM ACTION ON THE GIVEN ROW
    return action == MenuAction.Accomplish.selector() || action == MenuAction.Abort.selector()
}

override func tableView(tableView: UITableView, performAction action: Selector, forRowAtIndexPath indexPath: NSIndexPath, withSender sender: AnyObject?) {
    //You can handle standard actions here, but custom actions never trigger this. It still needs to be present for the menu to display, though.
}

 override func tableView(tableView: UITableView, shouldShowMenuForRowAtIndexPath indexPath: NSIndexPath) -> Bool {   ///FUNCTION FOR SELECTION OF ROW
    return true
}




override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    return 1
}

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return 7
}


override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath)

    return cell
}




}

Answer 1

UIMenuController应用程序单例负责显示编辑操作菜单项，如复制，剪切，删除，选择等。关于它有很棒的NSHipster tutorial。我担心Accomplish和Abort实际上并不是编辑动作。所以我猜使用UIMenuController并不是完全正确的决定。如果您想为用户提供一些关于点击表视图单元格的选项，您最好使用UIActionSheet。如果你想以与UIMenuController完全相同的方式显示选项，我宁愿建议你考虑使用像https://github.com/camelcc/MenuPopOverView这样的CocoaPod。

UITableviewController没有显示触摸菜单

1 个答案: