How to exclude Notes and Reminders apps from the UIActivityViewController?

If you don't want to subclass UIActivityViewController you can include them in your .excludedActivityTypes when creating your UIActivityViewController.

Objective C:

UIActivityViewController *activityController = [[UIActivityViewController alloc]initWithActivityItems:sharingItems applicationActivities:nil];activityController.excludedActivityTypes = @[    UIActivityTypeAssignToContact,    UIActivityTypePrint,    UIActivityTypeAddToReadingList,    UIActivityTypeSaveToCameraRoll,    UIActivityTypeOpenInIBooks,    @"com.apple.mobilenotes.SharingExtension",    @"com.apple.reminders.RemindersEditorExtension"];[self presentViewController:activityController animated:YES completion:nil];

Swift 4.2:

let activityController = UIActivityViewController(activityItems: sharingItems, applicationActivities: nil)activityController.excludedActivityTypes = [    UIActivity.ActivityType.assignToContact,    UIActivity.ActivityType.print,    UIActivity.ActivityType.addToReadingList,    UIActivity.ActivityType.saveToCameraRoll,    UIActivity.ActivityType.openInIBooks,    UIActivity.ActivityType(rawValue: "com.apple.reminders.RemindersEditorExtension"),    UIActivity.ActivityType(rawValue: "com.apple.mobilenotes.SharingExtension")]present(activityController, animated: true, completion: nil)

Swift 2.2 version. Tested in iOS9.3. Works.

UPDATE and got approved by App Store Review.

import UIKitclass ActivityViewController: UIActivityViewController {    func _shouldExcludeActivityType(activity: UIActivity) -> Bool {        let activityTypesToExclude = [            "com.apple.reminders.RemindersEditorExtension",            "com.apple.mobilenotes.SharingExtension",            UIActivityTypeOpenInIBooks,            UIActivityTypePrint,            UIActivityTypeAssignToContact,            "com.google.Drive.ShareExtension"        ]        if let actType = activity.activityType() {            if activityTypesToExclude.contains(actType) {                return true            }            else if super.excludedActivityTypes != nil {                return super.excludedActivityTypes!.contains(actType)            }        }        return false    }}

Also useful

 "com.apple.mobileslideshow.StreamShareService"

gets rid of the "cloud" one.

There is a way, but involves private API.

Sometimes Apple makes exceptions, especially if you fix a bug.

Let's dive into details...

UIActivityViewController has got a private method called "_availableActivitiesForItems:", which returns an array of UISocialActivity objects.

UISocialActivity has got an interesting property, called "activityType", which returns a domain-formatted activity type.

After some tests, I managed to discover the Reminder and Notes activity types:

• com.apple.reminders.RemindersEditorExtension
• com.apple.mobilenotes.SharingExtension

Unfortunately, passing those two types into ".excludedActivityTypes" didn't make any difference.

#import <UIKit/UIKit.h>@interface UISocialActivity : NSObject- (id)activityType;@end@interface UIActivityViewController (Private)- (id)_availableActivitiesForItems:(id)arg1;@end@interface ActivityViewController : UIActivityViewController@end

@implementation ActivityViewController- (id)_availableActivitiesForItems:(id)arg1{    id activities = [super _availableActivitiesForItems:arg1];    NSMutableArray *filteredActivities = [NSMutableArray array];    [activities enumerateObjectsUsingBlock:^(UISocialActivity*  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        if (![[obj activityType] isEqualToString:@"com.apple.reminders.RemindersEditorExtension"] &&            ![[obj activityType] isEqualToString:@"com.apple.mobilenotes.SharingExtension"]) {            [filteredActivities addObject:obj];        }    }];    return [NSArray arrayWithArray:filteredActivities];    }    @end

@interface UIActivityViewController (Private)- (BOOL)_shouldExcludeActivityType:(UIActivity*)activity;@end@interface ActivityViewController : UIActivityViewController@end

@implementation ActivityViewController- (BOOL)_shouldExcludeActivityType:(UIActivity *)activity{    if ([[activity activityType] isEqualToString:@"com.apple.reminders.RemindersEditorExtension"] ||        [[activity activityType] isEqualToString:@"com.apple.mobilenotes.SharingExtension"]) {        return YES;    }    return [super _shouldExcludeActivityType:activity];}