Disable a IBAction (id) sender button programatically in Xcode while developing app for iOS & OSX

While developing apps for OSX or iOS you will be wondering how to disable IBAction button programatically.

Here is how to do it.


Assumption: I assume you are using Storyboards for developing your apps within Xcode.

Step 01: Drag UIButton (iOS) or NSButton (OSX) on Storyboard. I Also assume that you have dragged three buttons on storyboard & you have named it as Start, Pause & Reset.


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How to programmatically set image to UIImageView or NSImageView in Xcode?

Here is how to programmatically set image to UIImageView in Xcode,

Step 01: In your Xcode project in storyboard drag UIImageView from object library (located at Xcode right utilities sidebar). Give it definite size & now note down it’s size on paper to create same size image in you choice of image editor.

Step 02: Connect UIImageView to respective header file with name e.g. imageView

Your code will look something like this:


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Here is how to set the text in an NSTextField programatically in Xcode while developing applications for OSX?

Here is step wise how to set text in NSTextField programatically,

If you are using storyboards for app development.
Connect button storyboard to code class file i.e. .h header & .m method file or incase of swift class file of source code

Let assume that you have connected your NSTextField / Label as:


@property (nonatomic, assign) IBOutlet NSTextField *namedTextField;

So you will use dot operator called .stringValue & Here is how it can be done two ways:


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How to Fix Xcode Organiser error, ‘ERROR ITMS-4238: “Redundant Binary Upload. There already exists a binary upload with build version ‘1.0.1’ for train ‘ 1.0.1’” at SoftwareAssets/PreReleaseSoftwareAsset’

With updated new iTunesConnect for Apple Developers comes with many features one which is prerelease or TestFlights for External Testers. It allows App Developer to distribute it’s unreleased app to selected beta testers so that developer can get reviews & bug reports from them. One of this feature is that you can upload multiple copies of same app to iTunesConnect i.e. ITC.

When you try to do that you get following error

xcode organiser ERROR ITMS-4238 Redundant Binary Upload. There already exists a binary upload with build version


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How to fix Xcode error ‘Unable to boot iOS Simulator’

Xcode is one stop shop development app for OSX & iOS devices including all Macintosh Desktops & Laptop, iPhone, iPad & iPod touch.

Note: I Assume you are on OSX Yosemite 10.10.3 or Latest Operating System & Xcode 6 or later installed.

With release of Xcode 6 & later while developing & running your iOS app in iOS Simulator on your Mac you face with this bug something like this ‘Unable to boot iOS Simulator’ with blank screen.

Unable to boot iOS Simulator in Xcode

Here is how to fix it


Solution 01:


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Here is how to fix Xcode iOS App Storyboard related error called ‘Frame for “Text View” will be different at run time.’

The Xcode error called ‘Frame for “Text View” will be different at run time.’ is frequent when you are trying to utilise Auto Layout with using reset to suggested constraints in Xcode Storyboard.


So here is how to fix it:

Step 01: Above Debug Are in your Xcode’s Storyboard’s view screen you will have 4 buttons at extreme right. Use pin button third from right to add new constraints per item at top, right, bottom & left & uncheck constrain to margins.



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Here is how to transition or Navigate from one iOS (iPhone or iPad) Storyboard UI Screen to other programatically by press of button

There are instances when you want to transition or navigate from one UI screen to other by press of button.

Yes you can link button visually by control clicking on button & then linking that button to required UI Screen on storyboard.

But I will show you how you can do it programatically with code defined & working differently for iPad & iPhone Storyboards.

I have used iOS Conditional coding syntax for differentiate iPhone & iPad Storyboards


Note: You can read about iOS Conditional Coding Here, How to detect user is using iPad or iPhone for iOS App at run time conditional coding purposes


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How to hide ‘Back’ button on iOS App Xcode Storyboard Transition from one screen to next detail ui view screen

You really want to hide this ‘Back’ button when you transition from one screen to next probably detail view screen where Xcode put this automatically for you without asking you want it or not.

But here is work around how to hide this ‘Back’ button programmatically using Objective C,


[self.navigationItem setHidesBackButton:YES animated:YES]; // Objective C Code

Here is how to hide ‘Back’ button using Swift Language…


self.navigationItem.setHidesBackButton(true, animated:true);

Put this code in your viewDidLoad in .m file for Objective C based iOS App,


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How to fix iTunes Connect error ‘No identities are available for signing’, This error appear every time you are trying to upload your iOS App binary from Xcode to iTunes Connect for Apple App Store Distribution

The issue of ‘No identities are available for signing’ starts with default behaviour of Xcode when you create new app in Xcode itself,

You fill up following information in Xcode while creating new app for iOS,

creat new project xcode ios bundle idetifier organisation idetifier product name

i.e. Product Name, Organisation Name, Company Identifier & it generates bundle identifier based on your inputs

Apple blindly by default & forcefully inserts ‘Product Name’ in bundle identifier without prompt or even asking user about it they want it or not.

So when you ignore this situation & start building your App…

At time of uploading your app to Apple App Store through iTunes Connect i.e. ITC it throws following error at you

No identities are available for signing itunes connect itc error apple app store


Error Name: No identities are available for signing

So here is work around & solution for this error:


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How to add additional button besides Back button normally required in details view of Table or UI View Controller of your iOS App for your Apple IDE Xcode Project

It’s always occurs when you are using table view controller in your iOS Xcode project & when you navigate from table view cell to detail view of your app in storyboard or on iOS Simulator or on actual device ‘Back’ Button Appear at top left. What if you want to add additional button besides ‘Back’ button, And you want to know it how? Here is the solution,

You just have to add following code in your ‘viewdidLoad’ function in your desired ViewController.m file:


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