Ios 从UIMenuController中删除自定义菜单项

我正在使用

UITableViewController

。如果长按

tableview单元格

，我将在

UIMenuController

中创建自定义菜单，该菜单工作正常（转发，回复）。在同一视图中，底部有

textview

。如果我点击它，它应该显示正常的动作，但它没有。它附带了默认项目以及我为

tableview单元格添加的项目（转发、回复）。如何从
UIMenuController
中删除自定义项，或如何对特定单元格执行操作

在单元格内，我有一个
UIImageView
。我添加了手势来执行操作。
您应该已经实现了
canperformation:with sender:
，以使自定义项目正常工作。在该方法中，您可以验证发送方以检查它是什么类/实例，并决定执行什么操作

或者，检查哪个实例是第一响应者。
您应该实现
canPerformAction:with sender:
，以使自定义项正常工作。在该方法中，您可以验证发送方以检查它是什么类/实例，并决定执行什么操作

-(void)showMenu:(UILongPressGestureRecognizer *)longPressRecognizer  
{  
    longPressRowNum = longPressRecognizer.view.tag;  
    NSIndexPath *indPath = [NSIndexPath indexPathForRow:longPressRecognizer.view.tag inSection:0];
    //Type cast it to CustomCell   
    UITableViewCell *cell = (UITableViewCell*)[projectTable cellForRowAtIndexPath:indPath];        
    ProjectDashBoard *projectDashBoard = [listRecord objectAtIndex:longPressRecognizer.view.tag];
    NSLog(@"long press project status---%@",projectDashBoard.projectStatus);

    if (longPressRecognizer.state == UIGestureRecognizerStateBegan) {



    UITableViewCell *selectedCell = (UITableViewCell *)longPressRecognizer.view;
    [selectedCell setSelected:YES];

    UIMenuItem *delete = [[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"deleteproject", nil)  action:@selector(deleteClicked:)];

    UIMenuController *menu = [UIMenuController sharedMenuController];

    if([projectDashBoard.projectStatus isEqualToString:statusActive]){
        UIMenuItem *archive = [[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"archiveproject", nil)  action:@selector(archiveClicked:)];
        [menu setMenuItems:[NSArray arrayWithObjects:delete, archive, nil]];
    }else{
        UIMenuItem *archive = [[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"unarchiveproject", nil)  action:@selector(archiveClicked:)];
        [menu setMenuItems:[NSArray arrayWithObjects:delete, archive, nil]];
    }

    [[UIMenuController sharedMenuController] update];
    [menu setTargetRect:cell.frame inView:cell.superview];
    [menu setMenuVisible:YES animated:YES];
 }
}

或者，检查哪个实例是第一响应者。
为此，首先创建一个包含自定义项的菜单，然后收听
uimenucontrollerwillhidemenonification
通知。在该通知中，当菜单将要隐藏时，您可以删除您添加的项目。下面是示例代码

-(void)showMenu:(UILongPressGestureRecognizer *)longPressRecognizer  
{  
    longPressRowNum = longPressRecognizer.view.tag;  
    NSIndexPath *indPath = [NSIndexPath indexPathForRow:longPressRecognizer.view.tag inSection:0];
    //Type cast it to CustomCell   
    UITableViewCell *cell = (UITableViewCell*)[projectTable cellForRowAtIndexPath:indPath];        
    ProjectDashBoard *projectDashBoard = [listRecord objectAtIndex:longPressRecognizer.view.tag];
    NSLog(@"long press project status---%@",projectDashBoard.projectStatus);

    if (longPressRecognizer.state == UIGestureRecognizerStateBegan) {



    UITableViewCell *selectedCell = (UITableViewCell *)longPressRecognizer.view;
    [selectedCell setSelected:YES];

    UIMenuItem *delete = [[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"deleteproject", nil)  action:@selector(deleteClicked:)];

    UIMenuController *menu = [UIMenuController sharedMenuController];

    if([projectDashBoard.projectStatus isEqualToString:statusActive]){
        UIMenuItem *archive = [[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"archiveproject", nil)  action:@selector(archiveClicked:)];
        [menu setMenuItems:[NSArray arrayWithObjects:delete, archive, nil]];
    }else{
        UIMenuItem *archive = [[UIMenuItem alloc] initWithTitle:NSLocalizedString(@"unarchiveproject", nil)  action:@selector(archiveClicked:)];
        [menu setMenuItems:[NSArray arrayWithObjects:delete, archive, nil]];
    }

    [[UIMenuController sharedMenuController] update];
    [menu setTargetRect:cell.frame inView:cell.superview];
    [menu setMenuVisible:YES animated:YES];
 }
}

-(void) showMenu{
     UIMenuController * menuController =[UIMenuController sharedMenuController];
     UIMenuItem * item1 = [[UIMenuItem alloc] initWithTitle:@"Goto" action:@selector(menuItem1Clicked:)];
     UIMenuItem * item2 = [[UIMenuItem alloc] initWithTitle:@"Edit" action:@selector(menuItem2Clicked:)];
     [menuController setMenuItems:@[item, item1]];
     [menuController setTargetRect:rect inView:self.view];
     [menuController setMenuVisible:YES animated:YES];
}

当菜单要隐藏时，请删除您添加的项

-(void) menuControllerWillHide:(NSNotification*)notification
{
     UIMenuController * controller = [UIMenuController sharedMenuController];
     NSArray * items = [controller menuItems]; // These are all custom items you added
     NSMutableArray * finalItemsYouWant = [NSMutableArray array];
     // Here you can check what items you dont want and then remove it
     [controller setMenuItems:finalItemsYouWant];
} 

为此，首先创建一个包含自定义项的菜单，然后收听
uimenucontrollerwillhidemenunification
通知。在该通知中，当菜单将要隐藏时，您可以删除您添加的项目。下面是示例代码

-(void) showMenu{
     UIMenuController * menuController =[UIMenuController sharedMenuController];
     UIMenuItem * item1 = [[UIMenuItem alloc] initWithTitle:@"Goto" action:@selector(menuItem1Clicked:)];
     UIMenuItem * item2 = [[UIMenuItem alloc] initWithTitle:@"Edit" action:@selector(menuItem2Clicked:)];
     [menuController setMenuItems:@[item, item1]];
     [menuController setTargetRect:rect inView:self.view];
     [menuController setMenuVisible:YES animated:YES];
}

当菜单要隐藏时，请删除您添加的项

-(void) menuControllerWillHide:(NSNotification*)notification
{
     UIMenuController * controller = [UIMenuController sharedMenuController];
     NSArray * items = [controller menuItems]; // These are all custom items you added
     NSMutableArray * finalItemsYouWant = [NSMutableArray array];
     // Here you can check what items you dont want and then remove it
     [controller setMenuItems:finalItemsYouWant];
} 

迅捷3：
在ViewController的viewDidLoad中：

 NotificationCenter.default.addObserver(self, selector: #selector(menuControllerWillHide), name: NSNotification.Name.UIMenuControllerWillHideMenu, object: nil)

func menuControllerWillHide(notification:NSNotification){
    UIMenuController.shared.menuItems = []
}

迅捷3：
在ViewController的viewDidLoad中：

 NotificationCenter.default.addObserver(self, selector: #selector(menuControllerWillHide), name: NSNotification.Name.UIMenuControllerWillHideMenu, object: nil)

func menuControllerWillHide(notification:NSNotification){
    UIMenuController.shared.menuItems = []
}

你是如何得到这个方法被调用的实例的？你是如何得到这个方法被调用的实例的？这就是我要找的！非常感谢。这就是我要找的！非常感谢。是否可以隐藏默认项？是否可以隐藏默认项？