We have learned how to add a button click event process function in the article iOS Add Click Event To UIButton Swift Example. In that article, if you want to process multiple button click events, you should create multiple IBAction functions to process. But sometimes, for code simplicity, you need to use only one IBAction […]
How To Use One IBAction For Multiple Buttons In Swift Read More »
UIKit.UIButton class is used to create a button in the iOS swift app programmatically. When you use this class to create a button object, you should provide a type parameter to UIButton class’s initializer method to tell swift which kind of button that you want to create. We only create a default system button in
How To Create Different Type Button Programmatically In Swift Read More »
We have learned how to add the button to the iOS app and how to add a button click event process function in the article iOS Add Click Event To UIButton Swift Example. But in that article, we add a button from the Xcode UI component library by drag & drop, we add a button
Swift UIKit.UIFont class is used to specify the label text font. You can use a system built-in text font, or you can customize the text font by providing the font name and font size. This example will tell you how to specify system font or provide customize text font to swift label component. It will
How To Customize Swift Label Text Font And Set Text Shadow Read More »
UIKit.UILabel class is used to create a label in iOS swift source code programmatically. You can change label text, label text color, label background color, label border width, label border color by setting it’s properties. You can also change the label text alignment by change the UILabel object’s textAlignment property value t0 NSTextAlignment.left, NSTextAlignment.center or NSTextAlignment.right.
How To Create, Align And Wrap Label Text Programmatically In Swift iOS App Read More »
This example will show you how to implement animation for the UIView object in swift. It will tell you how to implement the below three swift UIView animations. The first uiview animation moves a red view from the screen top left to the bottom right use swift code. It is a spring animation. The second
Swift UIView Animation Example Read More »
A swift view can have subviews, the subview can have it’s own subview also. So you can implement a view tree in swift, all the subviews are saved in a subview array, later added subview will override previously added subview. This article will show you an example to tell you how to add, insert, move
How To Add, Insert, Move, Remove Sub View In iOS Swift Read More »
When I develop an iOS example application use swift, I meet a strange situation. When I click the run button to start my iOS example, it runs well. My example iOS app has a button, so I click it to trigger a Touch Up Inside event for this button, but this action makes my iOS
How To Fix Swift Unrecognized Selector Sent To Instance Error Read More »
After you create a swift project in Xcode and write some swift source code, you must want to debug your iOS app to help you to find out and fix errors that exist in your app. Debug and find error messages in Xcode is very easy, this article will tell you how to do it.
How To Debug And Get Error Messages In Xcode Step By Step Read More »
When we develop iOS app use Xcode, we design the app GUI ( graphical user interface ) in Main.storyboard file. And the swift source code is edited in ViewController.swift file. But how to use swift source code in ViewController.swift file to modify storyboard UI component’s attributes or process UI component’s action event? This article will
How To Connect Storyboard UI Component To ViewController Class Code Read More »