Category: Tutorials

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

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

Here is step by step procedure to achieve the designed result:

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

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

@IBOutlet weak var imageView: UIImageView!

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

I was searching the web for answers on how to give the CurlUp / CrossDissolve / FlipFromRight / FlipFromLeft / CurlDown / FlipFromTop / FlipFromBottom transition effect for the UITabBar Tab Switch.

I found this answer, but it has a bug or a black screen when you tap on the same tab twice, i.e., the destination and current tab are the same.

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

So here is the final answer without any bugs.

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

UITabBarController, UITabBarControllerDelegate

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

self.delegate = self

Assumption:
I assume you have embedded UINavigationBar inside your Apple iOS app on Storyboard.

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

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

Assumption:
I assume you have deployed UITabBarViewController in your iOS App. Now you want to change the Tint color of the UITabBar, the Tint color of the UITabBar item, and the tint color of the UITabBar’s unselected icon.

Doing this is just as simple as a single line of code.

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

So your code will look something like this.

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

Copy the following code using your current View Controller’s ViewdidLoad method.

Let’s assume you use Tab Bar View Controller in your Xcode 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.

While we use app development methodologies like MVC (Model, View, Controller), we encounter problems navigating from one view to another. How do you change the text of the back button, which gets populated automatically by the Apple iOS operating system?

You can use the below method in the 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 the ‘prepare for segue’ method of your app: