Custom UIActivity

CustomActivity.h

//
//  CustomActivity.h
//  RedditDownloader
//
//  Created by BandarHelal on 18/08/1441 AH.
//

#import <UIKit/UIKit.h>

@interface CustomActivity : UIActivity
@property (nonatomic, strong) NSString *_title;
@property (nonatomic, strong) UIImage *_image;
@property (copy)void (^Action)(void);
- (instancetype)initWithTitle:(NSString *)Title image:(UIImage *)image performAction:(void(^)(void))Action;
@end

CustomActivity.m

//
//  CustomActivity.m
//  RedditDownloader
//
//  Created by BandarHelal on 18/08/1441 AH.
//

#import "CustomActivity.h"

@implementation CustomActivity

- (instancetype)initWithTitle:(NSString *)Title image:(UIImage *)image performAction:(void(^)(void))Action {
    self = [super init];
    if (self) {
        self._title = Title;
        self._image = image;
        self.Action = Action;
    }
    return self;
}

- (NSString *)activityType {
    return [NSString stringWithFormat:@"%@-BH", NSBundle.mainBundle.bundleIdentifier];
}

- (NSString *)activityTitle {
    return self._title;
}

- (UIImage *)activityImage {
    return self._image;
}

- (BOOL)canPerformWithActivityItems:(NSArray *)activityItems {
    return YES;
}
+ (UIActivityCategory)activityCategory {
    return UIActivityCategoryAction;
}
- (void)performActivity {
    self.Action();
    [self activityDidFinish:YES];
}
@end

CustomActivity.swift

class CustomActivity: UIActivity {
    var _activityTitle: String
    var _activityImage: UIImage?
    var activityItems = [Any]()
    var action: ([Any]) -> Void
    
    init(title: String, image: UIImage?, performAction: @escaping ([Any]) -> Void) {
        _activityTitle = title
        _activityImage = image
        action = performAction
        super.init()
    }
    override var activityTitle: String? {
        return _activityTitle
    }
    override var activityImage: UIImage? {
        return _activityImage
    }
    override var activityType: UIActivity.ActivityType? {
        return UIActivity.ActivityType(rawValue: "com.yoursite.yourapp.activity")
    }
    override class var activityCategory: UIActivity.Category {
        return .action
    }
    override func canPerform(withActivityItems activityItems: [Any]) -> Bool {
        return true
    }
    override func prepare(withActivityItems activityItems: [Any]) {
        self.activityItems = activityItems
    }
    override func perform() {
        action(activityItems)
        activityDidFinish(true)
    }
}

how_to_use.txt

obj-c:
    CustomActivity *test = [[CustomActivity alloc] initWithTitle:@"test" image:[UIImage systemImageNamed:@"square.and.arrow.down.fill"] performAction:^{
        NSLog(@"Hello 1");
    }];
    CustomActivity *test2 = [[CustomActivity alloc] initWithTitle:@"test 2" image:[UIImage systemImageNamed:@"trash"] performAction:^{
        NSLog(@"Hello 2");
    }];
    UIActivityViewController *ActivityVC = [[UIActivityViewController alloc] initWithActivityItems:@[@"test"] applicationActivities:@[test, test2]];
    [self presentViewController:ActivityVC animated:true completion:nil];
    
swift:
        let test = CustomActivity(title: "test", image: UIImage(systemName: "square.and.arrow.down.fill")) { (_) in
            print("Hello 1");
        }
        let test2 = CustomActivity(title: "test 2", image: UIImage(systemName: "trash")) { (_) in
            print("Hello 2");
        }
        let ActivityVC = UIActivityViewController(activityItems: ["test"], applicationActivities: [test, test2])
        self.present(ActivityVC, animated: true, completion: nil)