A utility that can show UIContextMenu at any position programmatically in iOS 17.

MenuTrigger.h

//
//  Created by ktiays on 2023/9/16.
//  Copyright (c) 2023 ktiays. All rights reserved.
// 

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

/// A utility class that can show `UIContextMenu` at any position programmatically.
@interface MenuTrigger : NSObject

/// The attached view that shows context menu.
///
/// You have to add it to your view as a subview.
/// You can adjust the frame or update constraints according to your needs.
@property (nonatomic, readonly) UIView *targetView;

/// Shows context menu by simulating clicking on target view.
- (void)showMenu:(UIMenu *)menu;

@end

NS_ASSUME_NONNULL_END

MenuTrigger.m

//
//  Created by ktiays on 2023/9/16.
//  Copyright (c) 2023 ktiays. All rights reserved.
// 

#import "MenuTrigger.h"

@interface _UIClickPresentationInteraction : NSObject

@property (nonatomic, nullable) NSArray *allDrivers;

- (void)clickDriver:(id)driver shouldBegin:(void (^)(void))beginHandler;
- (void)clickDriver:(id)arg1 didUpdateHighlightProgress:(CGFloat)progress;
- (void)clickDriver:(id)arg1 didPerformEvent:(NSUInteger)event;

@end

@interface UIContextMenuInteraction ()

@property (nonatomic, nullable) _UIClickPresentationInteraction *presentationInteraction;

@end

@implementation MenuTrigger {
    UIButton *_menuButton;
}

- (void)showMenu:(UIMenu *)menu {
    if (!menu || !_menuButton.superview) {
        return;
    }
    
    _menuButton.menu = menu;
    _menuButton.showsMenuAsPrimaryAction = YES;
    
    __auto_type contextMenuInteraction = [_menuButton contextMenuInteraction];
    if (![contextMenuInteraction isKindOfClass:NSClassFromString(@"_UIVariableGestureContextMenuInteraction")]) {
        return;
    }
    
    _UIClickPresentationInteraction *presentationInteraction = contextMenuInteraction.presentationInteraction;
    NSArray *drivers = presentationInteraction.allDrivers;
    id touchDownClickInteractionDriver = nil;
    for (id driver in drivers) {
        if ([driver isKindOfClass:NSClassFromString(@"_UITouchDownClickInteractionDriver")]) {
            touchDownClickInteractionDriver = driver;
        }
    }
    if (!touchDownClickInteractionDriver) {
        return;
    }
    
    __weak __typeof(touchDownClickInteractionDriver) weakDriver = touchDownClickInteractionDriver;
    __weak __typeof(presentationInteraction) interaction = presentationInteraction;
    [presentationInteraction clickDriver:touchDownClickInteractionDriver shouldBegin:^{
        __strong __typeof(weakDriver) strongDriver = weakDriver;
        __strong __typeof(interaction) strongInteraction = interaction;
        if (!weakDriver || !interaction) {
            return;
        }
        [strongInteraction clickDriver:strongDriver didUpdateHighlightProgress:1];
        for (NSUInteger i = 0; i <= 3; ++i) {
            [strongInteraction clickDriver:strongDriver didPerformEvent:i];
        }
    }];
}

- (UIView *)targetView {
    if (!_menuButton) {
        _menuButton = [[UIButton alloc] init];
        _menuButton.userInteractionEnabled = NO;
    }
    return _menuButton;
}

@end