Tutorial

A collection of 53 posts

SwiftUI

Numbers only TextField with SwiftUI

Requiring an input to be numbers only is quite a common task. In this tutorial I will show you how to allow numbers only in a TextField using SwiftUI. Step 1: Change the keyboard type to .decimalPad The first step in this task is to change the keyboard type to

Swift

Hide home indicator with Swift

The iPhone X removed the home button and replaced it with what Apple calls the home indicator. Apple has allowed us to hide the home indicator which can be useful if your app needs to hide the indicator. Some examples could be for a video player app, photo app, map/

Swift

Hide navigation bar on Scroll or Tap with Swift

Have you noticed on some apps where the navigation bar will hide when you start scrolling or if you tap? In this tutorial we will look at how we can do this. The best part about this functionality is how easy it is to implement. Links * Hide on scroll * Hide

UITableView

Create a UITableView with Swift

In quite a few of my tutorials I need to add a section that will explain setting up a UITableView even if the tutorial does not focus on UITableView specifically. I do this so that readers can see exactly what I have done from the start, who knows, maybe their

UITableView

Change UITableView separator color

In this quick tutorial I will show you how to change a UITableView's separator color. There are two ways to do this, both are very easy, but there is one that I personally prefer to use. Links * Change separator color with Interface Builder * Change separator color with Swift(

SwiftUI

Pass SwiftUI view as argument to another view

I assume since you are reading this article that you want to be able to pass a view or multiple views as an argument to another view using SwiftUI. In this tutorial we will learn how we can use ViewBuilder to achieve this. Step 1: Create a custom view This

SwiftUI

SwiftUI TextField Character Limit

I have written about how to add a character limit to UITextField so I thought that I might as well write a tutorial on how to add a character limit to a SwiftUI TextField. There are few things that change when doing it for SwiftUI. These changes are mainly due

SwiftUI

Resize an image with SwiftUI

Images are not always the exact size that we need which is what leads me to writing this tutorial. Depending on the situation you might have an image that is too big or too small. > TLDR: To resize an image we need to use the resizable view modifier on

SwiftUI

SwiftUI list remove padding(Left and Right)

SwiftUI can be great, for specific tasks it makes getting things done a breeze, but for others, it works in unexpected ways. Removing padding from a list is one of those things that really does not make sense to me. This is how I thought I could remove padding from

Swift

How to convert array to string with Swift

In some situations one might want to convert an array of strings to a string. There are a few ways to do this, all are quick and easy but for most use cases the simplest solution will be the best solution. Array.joined Array.joined is the simplest solution out

Swift

Get keyboard height in SwiftUI

I have written about getting the height of the keyboard before, you can find that article here [https://programmingwithswift.com/keyboard-height-with-swift/]. In this article I am going to be changing it up bit, we will be looking at how to use @Published, ObservableObject and @ObservedObject which can make it a

UITableViewCell

UITableViewCell swipe actions with Swift

iOS 11 brought a new way to add custom swipe swipe actions to UITableViewCell's. In this tutorial we will learn how to add those swipe actions to table view cells, as well as go through some of the things to look out for when adding swipe actions. When

Swift

Remove UITableViewCell highlight/selection color with Swift

This is one of those annoying default behaviours that iOS has. Below is a one liner that will help you remove the cell highlighting. To remove the table view cell highlight/selection color all you need to do is this: func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell

Swift

Add UITextField to UIAlertController with Swift

In this tutorial I will show you how to add text fields to a UIAlertController using Swift. This is one of those tasks that is surprisingly simple as it is built into UIAlertController. Just before we get to the code, my project is a new project and all the code

Swift

Reload UITableView row/cell at IndexPath

Reloading an entire table view is not always the best way to update the data in the table view. It might be better to reload specific rows/cells in the table view. In today's tutorial we will be learning how to do this, luckily, Apple has made this

Swift

Add UIDatePicker in a UITextField with Swift

In this tutorial I will show you how to add a UIDatePicker to a UITextField. Using a date picker can be a common input in forms when asking a user to sign up or you might be making a timer application and the list goes on. In some cases we

Swift

Change UITextField placeholder text color with Swift

In this tutorial you will learn how to change the color of a UITextField's placeholder text. This is a straight forward task but if you are anything like me and you see NSAttributedString you start looking for a different solution. We are going to be using NSAttributedString in

Xcode

Xcode 11 run app on iOS 12 and lower

Creating an app with Xcode 11 has a little bit of a hidden issue, it does not allow you to run the app on iOS 12 or lower out of the box. There are a few changes that need to be made in order to get your app to work

Tutorial

Set character limit on UITextField and UITextView with Swift

When creating forms in an app, one might want a character limit as part of the validation for UITextField's or UITextView's. Adding limits require the use of UITextFieldDelegate or UITextViewDelegate depending on if you are using a textfield or a textview. In this tutorial we will

Swift

Dismiss Keyboard with Swift in iOS app

Dismissing the keyboard in iOS is something that almost every app will need to do at some point if it has a UITextField or UITextView. In this tutorial I will go through a few techniques that you can use to dismiss the keyboard in your app. Some techniques are better

Swift

Open a PDF file with Swift(PDFKit, WKWebView)

PDF files are common place and with iOS/iPadOS becoming a more powerful operating system, opening PDF files and other regular computer type tasks will become more common place. In this tutorial we explore two ways of opening a PDF file with Swift. The PDF can be a local file

database

Getting Started with Realm Database for iOS in Swift

In this tutorial we will learn the basics of Realm Database, from installing it to building the models and writing the create, read, update and delete methods. If you are looking for an in depth Realm Database tutorial, then this is not the article for you. I am looking to

How to

Create a Custom UITableViewCell with Swift

UITableViews are one of the most commonly used views in iOS development. It is often the case that one will want to create a custom UITableViewCell, so in this tutorial I will show you how to create custom UITableViewCells. Before we start this tutorial, I will assume that you will

Swift

Parse JSON from file and URL with Swift

In todays tutorial we are going to learn how to read a JSON file with Swift, but that file could be a local JSON file or a hosted JSON file. I have a GitHub repo setup for this project that contains the local file but also the hosted file. Before

Xcode

Change iOS app name with Xcode

Changing the name of your app is not something that will be done often, but there are situations where you might want to change your app name. You might have created a new app with a development name, but at some point that name will have to change to the