Apple iOS

iOS (originally iPhone OS) is a mobile operating system created and developed by Apple Inc. and distributed exclusively for Apple hardware. It is the operating system that presently powers many of the company’s mobile devices, including the iPhone, iPad, and iPod touch.

Here is how to do UIImageView Image Inset in Apple iOS App using Xcode

Mandar Apte Apple, Apple iOS, Apple Xcode, Tutorials Leave a comment

Here is example if you want to inset UIImageView so that image does not fit edge to edge of the UIImageView

 
Note: Use of latest version of Xcode & Latest version of Swift Programming Language is preferred.

 
Here is step by step procedure to achieve designed result:

 
Step 01: Create Apple iOS Project in Xcode. Add UIImageView to View Controller in Storyboard.

 
Step 02: Now Connect that UIImageView to View Controller Swift File. It will look something like this.

 

@IBOutlet weak var imageView: UIImageView!

 
Step 03: Now add following code in ViewDidLoad Function of your View Controller File.

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Here is how to animate Tab bar tab switch with a CrossDissolve slide transition in UITabBarViewController!

Mandar Apte Apple, Apple iOS, Apple Xcode, Tutorials 2 Comments

While searching for answer on web for how to give CurlUp / CrossDissolve / FlipFromRight / FlipFromLeft / CurlDown / FlipFromTop / FlipFromBottom transition effect for UITabBar Tab Switch.

 
I found out this answer but with bug or black screen when you tap on same tab twice i.e. destination and current tab is same.

 
So I solve this issue with my logic and additional if and else statement.

 
So here is final answer without any bug.

 

Step 01: Add this two classes as Super Class to your UITabBarViewController

 

UITabBarController, UITabBarControllerDelegate

 

Step 02: Now add following code to your viewDidLoad Function in your UITabBarViewController

 

self.delegate = self

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Here is how to hide Navigation Bar on Scroll in your Apple iOS App with single line of code!

Mandar Apte Apple, Apple iOS, Apple Xcode, Tutorials Leave a comment

Assumption: I assume your have embedded in UINavigationBar in your Apple iOS App inside Storyboard.

 
If you want to mimic Apple Safari iOS App’s behaviour of hiding navigation bar on scroll you can do it in just single line of code without any hassle.

 
You have to add following code in your View Controller’s viewDidAppear function where you have added UINavigationBar in storyboard:

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Here is how to programatically change UITabBar Tint Color, UITabBar Item Tint Color & also how to change UITabBar Item’s unselected icon tint color.

Mandar Apte Apple, Apple iOS, Apple Xcode, Tutorials Leave a comment

Assumption: I assume you have deployed UITabBarViewController in your iOS App. And now you want to change UITabBar Tint color, UITabBar Item’s Tint color and also UITabBar’s unselected icon’s tint color.

 
Do this is just simple as single line of code.

 
Below code will go to your Apple iOS app’s AppDelegate.swift file under ‘didFinishLaunchingWithOptions’ function.

 
So your code will look something like this.

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Here is how to programmatically set icon / image for Tab Bar Item in UITabBarViewController

Mandar Apte Apple, Apple iOS, Apple Xcode, Tutorials Leave a comment

Assumptions: I assume you have already embedded in UITabBarViewController for your ViewController in Interface Builder. I also assume you have three tab bar items with individual view controllers and further you have created images assets with your icon images.

 
Solution is simple you have to copy following code in your current View Controller’s ViewdidLoad method.

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How to programatically change titles of tabs in UITabBarViewController and here is how to programatically change title of individual View Controllers at Navigation Bar inside individual UITabBarViewControllers.

Mandar Apte Apple, Apple iOS, Apple Xcode, Tutorials Leave a comment

Let’s assume you are using Tab Bar View Controller in your Xcode Apple iOS App Project.

 
You have embedded in your view controller with UITabBarViewController.

 
Say, you are using 3 Tab Views.

 
In Swift programming Language number counting starts with 0 so you will write code like this in your respective view controller’s viewDidLoad function.

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Here is solution if you are trying to upload your app to Apple iTunes Connect but you are stuck in “Uploading to App Store – Authenticating with iTunes Store…” Message

Mandar Apte Apple, Apple iOS, Apple Xcode Leave a comment

It’s every app developers dream time when he develops and then uploads his app to Apple App Store using Xcode.

 
At that moment of time while uploading your app if you are stuck in one place where Xcode organiser says “Uploading to App Store – Authenticating with iTunes Store” & there is no further progress.

 
Then here is how to solve this!

 
Just open Terminal App from your Applications > Utilities > Terminal.

 
Paste below code in Terminal & hit return key.

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Here is how to change < Back button text of your Apple iOS App

Mandar Apte Apple, Apple iOS, Apple Xcode, Tutorials Leave a comment

While we use app development methodology like MVC (Model, View, Controller) we encounter problem while navigating from one view to another how to change text of back button which get populated automatically by Apple iOS Operating System.

 
You can use below method in viewDidLoad method of your root view:

 

navigationItem.backBarButtonItem = UIBarButtonItem(title: "Back", style: .plain, target: nil, action: nil)

 
Here is another way of doing the same which can be done in ‘prepare for segue’ method of your app:

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Here is how to programmatically identify if user is on iPhone or iPad. There is also way to find out if user is on either device and if it is in portrait mode, landscape mode.

Mandar Apte Apple, Apple iOS, Tutorials Leave a comment

We will explore our ways to identify device of user whether it is iPad or iPhone, We will do all this in Swift Programming Language with latest Xcode build.

 
There four ways that iOS device will get identified .phone, .pad, .tv & .unspecified.

 
So code will look like this in swift

 

if (UIScreen.main.traitCollection.userInterfaceIdiom == UIUserInterfaceIdiom.pad) {
    print("It's iPad")
    // Your code here
    
} else if (UIScreen.main.traitCollection.userInterfaceIdiom == UIUserInterfaceIdiom.phone) {
    print("It's iPhone")
    // Your code here
    
} else if (UIScreen.main.traitCollection.userInterfaceIdiom == UIUserInterfaceIdiom.tv) {
    print("It's Apple TV")
    // Your code here
    
} else if (UIScreen.main.traitCollection.userInterfaceIdiom == UIUserInterfaceIdiom.unspecified) {
    print("It's Unknown Device")
    // Your code here
    
}

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What is Apple Store Kit Framework and how to write code for SKStoreReviewController API which will prompt user to write review for you App while using your app & without leaving your app

Mandar Apte Apple, Apple iOS, Tutorials Leave a comment

Introduction to StoreKit and Apple App Store policies

 
I will write down few concepts & ideas to help you understand to implement StoreKit app review functionality in your app using Xcode.

 
Important Points to remember

 
You can ask your users to rate your app on a scale of 1 to 5 stars. User can also choose to write review for iOS and macOS apps.

 
Developer can view, sort and respond to reviews in iTunes Connect.

 
About Summery of Ratings

 
Every App Store app has one summary rating on product page, specific to each territory on the App Store.

 
Developer can reset your app’s summary rating with release a new version of app.

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