Tutorial

A collection of 53 posts

Xcode

Delete derived data with Xcode

Xcode can often do some strange things that causes build problems etc. One of the go to methods to try and fix these issues is to delete derived data. In this tutorial, I will show you how you can delete the derived data. Step 1: Open Preferences The first thing

SwiftUI

Create and Customize a Button with SwiftUI

A Button is one of the most used views in any kinda of mobile application. In today's tutorial we will learn how to create and customize a Button using SwiftUI. In this tutorial we will create 7 buttons, each with different styling. These 7 buttons will cover a

Swift

Add UIButton programmatically using Swift

There could be situations where one needs to create a button programmatically. In this tutorial we will learn how to add a button using code. Create the button action Before we start with the button we need to start with create the selector that we will use for the button

Swift

Pass arguments to a Selector with Swift

Sometimes when building an application it would be useful to pass arguments to a selector. In my tutorial [https://programmingwithswift.com/expand-collapse-uitableview-section-with-swift/] on hiding tableview sections, this would have been useful, but instead I had to use a tag. Selectors do not work work the same way that a normal

Swift

Add bar button to Navigation Bar with Swift

In this tutorial we will learn how to add a bar button to a navigation bar with Swift. Navigation bars are very popular with iOS development, and depending on the app you might find yourself needing to add a few more buttons to the navigation bar. In this tutorial we

Swift

Share text or images with UIActivityViewController in Swift

UIActivityViewController makes sharing easy and it allows one to share many different types content including, text, images, URL's, Audio and more. In this tutorial we will learn how to share images, text and a URL. All of these use the same code, but we will also learn how

Swift

Expand/Collapse UITableView Section with Swift

UITableView is one of the most used views in iOS development. They can be used for lots of reasons. You might use them to build a form, to display a list of items, build a comment section etc. Some use cases for a table view require that cells or sections

Swift

Activity Indicator with Swift

With most apps the users will have to wait for some process to complete, whether that is downloading a video/image, fetching data from an api, processing images etc. If your app requires the user to wait for some amount of time for a task to complete it would be

Swift

Cache an image with Swift

Caching images is one of those things that every iOS developer should know how to do, even if it is at the most basic level. Why and when do we need caching? Why It is becoming more and more important to provide a responsive and efficient experience for your users.

Swift

Save file to Documents directory with Swift

In this tutorial we will learn how to save a file to the Documents directory. There are many reasons why this would be useful. You might want to save an image locally, I have written a tutorial [https://programmingwithswift.com/save-images-locally-with-swift-5/] about this before. You might want to build a

Swift

How to add header/footer view to UITableView in Storyboard

In this tutorial you will learn how to add a header and a footer view to a UITableView. There are two ways that we can add the header and footer, one way is to add it in using Interface Builder and the other way is to do it with code.

Swift

Fix "this class is not key value coding-compliant for the key"

In this tutorial we will learn how to fix "this is not key value coding-compliant for the key". This is a quite a common problem with new developers and the issue occurs when the user interface which is created with Interface Builder and the code do not match

Swift

Hide row/cells in Static UITableView with Swift

Static UITableView's have very specific use cases. Some of these use cases can be menu's or the settings of your app. These two examples would generally have static content, but that doesn't mean that they should not be able to change based on user

Swift

Move to next text field with Swift

Creating a form for an app is a common task for iOS developers, but they often require that the user easily move to the next textfield without having to tap on the next textfield. In this tutorial we will learn how to move from one textfield to the next textfield.

UIKit

Remove empty rows/cells in table view

When a UITableView only has a few element the empty rows/cells will still be visible. In this tutorial we will learn how to remove the empty rows, and to remove the separator from the empty rows is quite simple. > To remove empty rows in a table view, all

How to

UITableView scroll to top with Swift

Scrolling to the top of a UITableView can be a useful feature depending on the type of app that you are making. If you have a tableview with hundreds of cells it can be annoying scrolling to the top of the tableview once you have scrolled far down the tableview.

Swift

Add a shadow to a UIView with Swift

Shadows are quite a popular design element, so in this tutorial we will learn how to add a shadow to a UIView using Swift. Adding a shadow is easy, but there are a couple caveats when it comes to rendering performance when using shadows. Before we get started with code,

How to

WKWebView load local web files and resources with Swift

In some situations loading a local web file or resource can be useful, so in this tutorial we will learn how to load a local html file that uses css. Step 1: Add the web files to your project To use these local web files in our project, we need

Swift

Get keyboard height with Swift

Getting the keyboard height with Swift is easy, and can be used when we need to move some content up if the keyboard overlaps it. > To get the keyboard height we need to listen for the .keyboardDidShowNotification. When receive this notification we can access the keyboard height from the

SwiftUI

SwiftUI Activity Indicator

In this tutorial we will learn how to use an activity indicator in SwiftUI. This is a simple task but unfortunately SwiftUI does not have an activity indicator built in, so we need to use the UIActivityIndicatorView which is part of UIKit. This is what we will be building: >

SwiftUI Featured

SwiftUI Progress bar/indicator

In this tutorial I will show you how to create a progress bar/indicator using SwiftUI. SwiftUI makes creating the progress bar/indicator very simple. We will learn how to create a normal progress bar but also a circular progress indicator. Before we get started I need to mention that

SwiftUI

SwiftUI Form tutorial for beginners

Learn how to create a form using the SwiftUI Form. Creating forms is easy using SwiftUI.

Swift

Get Nth character in string with Swift

Easily get Nth character from string with Swift. In this post I will show you multiple ways to get the Nth character from a string with Swift

Swift

Get hours, minutes and seconds from Date with Swift

Learn how to get hours, minutes, seconds using Date with Swift. Easily get calendar components with Swift using Date

SwiftUI Featured

Create a Custom ViewModifier in SwiftUI

In today's tutorial we will be learning about the ViewModifier protocol. In Apple's documentation they define a ViewModifier as follows: > A modifier that you apply to a view or another view modifier, producing a different version of the original value One of the simplest ways