Sign Up

Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.

Have an account? Sign In

Have an account? Sign In Now

Sign In

Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.

Sign Up Here

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask a question.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

The Archive Base

The Archive Base Logo The Archive Base Logo

The Archive Base Navigation

  • SEARCH
  • Home
  • About Us
  • Blog
  • Contact Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • Add group
  • Groups page
  • Feed
  • User Profile
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Buy Points
  • Users
  • Help
  • Buy Theme
  • SEARCH
Home/ Questions/Q 456171
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Editorial Team
Asked: May 12, 20262026-05-12T22:26:41+00:00 2026-05-12T22:26:41+00:00

I have an IBOutlet assigned in my header file named *myButton and is type

  • 0

I have an IBOutlet assigned in my header file named *myButton and is type UIButton class.

the purpose of myButton is to programmatically assign the alpha to multiple buttons.

it seems as if you can only assign myButton to one button in IB.

is there a way to assign an alpha value to multiple buttons at the same time or am i going to have to refer to each button. ive got quite a few buttons and i need them all to change at the same time.

thanks for any help!

  • 1 1 Answer
  • 4 Views
  • 0 Followers
  • 0
Share
  • Facebook
  • Report

Leave an answer
Cancel reply

You must login to add an answer.

Forgot Password?

Need An Account, Sign Up Here

1 Answer

  • Voted
  • Oldest
  • Recent
  • Random
  1. Editorial Team
    Editorial Team
    2026-05-12T22:26:41+00:00Added an answer on May 12, 2026 at 10:26 pm

    An IBOutlet is simply an instance variable (which is a pointer) in your class. You cannot have a pointer refer to more than one memory space simultaneously in any programming language.

    You will need to refer to each button individually. You could look into storing pointers to all your buttons in an NSArray and simply iterating over it. You could also look into using an NSMatrixView or NSCollectionView to display your many buttons, and then take action on that to change all your buttons.

    • 0
    • Reply
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
      • Report

Sidebar

Related Questions

In my header file I have: IBOutlet UITextField * _userNameOrEmail; IBOutlet UITextField * _password;
I have a custom UITableViewController with 2 properties: @property (strong, nonatomic) IBOutlet VenueHeaderViewController *header;
I have three button named(titled) hello, nothing, heaven and one label (IBOutlet UIlabel lab).
In my .h file I have: IBOutlet UIImageView *image1; and in .m file I
In my app delegate, I have a IBOutlet for a UIButton that is linked
I have a ball assigned to a UIImageView in Interface Builder. An IBOutlet from
I have classes: PropertyCalcViewController .m & .h In the .h I have IBOutlet UIButton
I Already have three TextField Outlet connected on my Nib File IBOutlet UITextField *myTextField;
in my .h I have IBOutlet NSMutableArray *buttons; @property (nonatomic, retain) IBOutletCollection(UIButton) NSMutableArray *buttons;
I have a class called ActorController and it has a NIB file. I have

Explore

  • Home
  • Add group
  • Groups page
  • Communities
  • Questions
    • New Questions
    • Trending Questions
    • Must read Questions
    • Hot Questions
  • Polls
  • Tags
  • Badges
  • Users
  • Help
  • SEARCH

Footer

© 2021 The Archive Base. All Rights Reserved
With Love by The Archive Base

Insert/edit link

Enter the destination URL

Or link to existing content

    No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.