iOS Tutorial

This example will tell you how to add and use the iOS UISegmentedControl object both in the Main.storyboard visually and programmatically in swift source code. There are two UISegmentedControl objects on the app screen. The above one is added to the Main.storyboard visually, when click it’s item, it will display the item title or image […]

This example will tell you how to create and use the UISwitch component both in Xcode interface builder and swift source code. It will add one label, one UISwitch to the Main.storyboard. And the other UISwitch component is created and used in ViewController.swift file uses source code programmatically. Let us first look at the example

All the swift interactive UI components ( UITextField, UITextView, etc ) can prompt the keyboard automatically when you focus on it. And you can change the keyboard type both in the interface builder Attributes Inspector panel and programmatically. This article will tell you how to set the keyboard type and how to hide the keyboard

We have introduced how to use UITextField and UITextView in the article iOS UITextField And UITextView Swift Example. In that article, we use interface builder and storyboard to create the user interface, assign delegate protocol to the view controller, implement delegate methods to respond to user action ( for example: begin editing a text field,

When you create an iOS 13 project in Xcode 11 use a single view app template, you will find Xcode 11 add a SceneDelegate.swift file automatically beside the AppDelegate.swift file. It defines a SceneDelegate class in the SceneDelegate.swift file, and this class takes over some UI life cycle functions which are implemented by AppDelegate class

In some older versions of Xcode, it uses xib files to help you to design an iOS app user interface. This article will tell you how to use xib file to design an iOS app user interface instead of the storyboard.

When I develop an iOS project in Xcode, I create a custom class RootViewController in RootViewController.swift file, this class is a subclass of UIViewController. But during the development process, when I use this custom class to create an object in another swift file ( for example SceneDelegate.swift ), I meet an error which said Use

When I follow the article How To Create A Swift App Without Storyboard to learn how to create an iOS app without using the storyboard, after I remove the Main.storyboard file and run it. I meet an error message like this Could not find a storyboard named ‘Main’ in bundle NSBundle.

When you develop an iOS app use swift in Xcode, the project template commonly creates a default UIViewController class defined in ViewController.swift file. This UIViewController class is used as a controller of the MVC pattern to respond to the app’s main window view’s event.