UIViewController+Additions.h

//
//  UIViewController+Additions.h
//  Events
//
//  Created by Alex Paul on 5/26/18.
//  Copyright © 2018 Alex Paul. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UIViewController (Additions)

- (void)showAlertWithTitle:(NSString *)title andMessage:(NSString *)message;
- (void)showAcitivityControllerWithURLLink:(NSString *)urlLink;

@end

UIViewController+Additions.m

//
//  UIViewController+Additions.m
//  Events
//
//  Created by Alex Paul on 5/26/18.
//  Copyright © 2018 Alex Paul. All rights reserved.
//

#import "UIViewController+Additions.h"

@implementation UIViewController (Alerts)

- (void)showAlertWithTitle:(NSString *)title andMessage:(NSString *)message {
    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];
    UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:nil];
    [alertController addAction:okAction];
    [self presentViewController:alertController animated:YES completion:nil];
}

- (void)showAcitivityControllerWithURLLink:(NSString *)urlLink {
    UIActivityViewController *activityController = [[UIActivityViewController alloc] initWithActivityItems:@[urlLink] applicationActivities:nil];
    [self presentViewController:activityController animated:YES completion:nil];
}

@end