1、创建按钮，并绑定activity方法

    //  按钮
    self.btn = [UIButton buttonWithType:UIButtonTypeCustom];
    self.btn.frame = CGRectMake(100, 100, 200, 200);
    self.btn.backgroundColor = [UIColor orangeColor];
    [self.btn setTitle:@"Activity" forState:UIControlStateNormal];
    
    //  绑定方法
    [self.btn addTarget:self action:@selector(activity) forControlEvents:UIControlEventTouchDown];
    
    [self.view addSubview:self.btn];

2、activity方法

#pragma activity方法
- (void)activity{
    
    //  文字
    NSString *str = @"这是activity";

    //  链接
    NSURL *URL = [NSURL URLWithString:@"http://www.baidu.com"];
    
    //  创建UIActivityViewController
    //  ActivityItems参数

    //  ActivityItems参数
    UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:@[str, URL] applicationActivities:nil];
    
    //  不显示的activity
    activityVC.excludedActivityTypes = @[UIActivityTypePostToFacebook];

    [self presentViewController:activityVC animated:YES completion:nil];
    
    
}

3、效果

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4、excludedActivityTypes

默认UIActivityViewController 将显示所有可用于所提供内容的服务，但我们也可以排除特定的 Activity 类型。
例如：不要显示FaceBook

activityViewController.excludedActivityTypes = @[UIActivityTypePostToFacebook];

所有activity：

UIKIT_EXTERN UIActivityType const UIActivityTypePostToFacebook     NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypePostToTwitter      NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypePostToWeibo        NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;    // SinaWeibo
UIKIT_EXTERN UIActivityType const UIActivityTypeMessage            NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypeMail               NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypePrint              NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypeCopyToPasteboard   NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypeAssignToContact    NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypeSaveToCameraRoll   NS_AVAILABLE_IOS(6_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypeAddToReadingList   NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypePostToFlickr       NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypePostToVimeo        NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypePostToTencentWeibo NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypeAirDrop            NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;
UIKIT_EXTERN UIActivityType const UIActivityTypeOpenInIBooks