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Swift

Great Reads

MVVM-B - B from Business logic

by Paulo Zemek

Mistakes that can be made while using MVVM and how to overcome them

Pwnage Checker - An iOS App Built Using Swift

by Vince Chan

Pwnage Checker is an iOS app that allows users to check whether an account has been compromised in a known data breach

iOS 12 Programming Fundamentals with Swift: Intro & Chpt1

by raddevus

Learn to create iOS apps using Xcode while you learn Swift. (If you've ever wanted to see iOS app dev in action, take a look at the screenshots.)

Tree View in Swift For iOS

by pgmr_64804

Tree View in Swift for iOS that is easy to implement and use

Latest Articles

iOS Cocoa Layout - The Difference between Nib and Xib

by Serhii Krotkykh

On easy example shown how to implement UIKit and SwiftUI TableView auto resizable cells and explained difference between Nib and Xib, how to load nib file and what exactly owner parameter of the load nib file method.

Result Builder in Swift for MVVM Pattern

by Serhii Krotkykh

Example of using result builder for the MVVM pattern

How to Add Live Activity to Your Existing Project - Part I

by Dearich

First part of the ultimate guide on how to add a Live Activity feature to your project

MVVM-B - B from Business logic

by Paulo Zemek

Mistakes that can be made while using MVVM and how to overcome them

All Articles

Swift

Objective-c or Swift

10 Dec 2014 by _Maxxx_

Assuming you only want to develop for IOS / Mac and not for other platforms (Windows, Android etc.) then Swift should be your choice; It is newer, but is I think intended to be the replacement for Objective C - eventually. so learning it now you will be at an advantage over others converting...

Automatically back navigation perform when parent view updates in swiftui iOS

14 Jun 2021 by Abbas Gujjar

Suppose we navigate to child view and when the Parent View updates then automatically back navigation performs up to Parent View. Can we disable this Behaviour? What I have tried: I have a list of card views and when I click on one of them...

A simple sql questions

22 Apr 2015 by Abhinav S

Trywhile (reader.HasRows){ //Code reader.NextResult();}

Is development of iOS application on windows is possible?

2 Jan 2017 by Afzaal Ahmad Zeeshan

You can develop the applications on Windows operating system, but to compile that project you will require to connect to a Mac system. Xamarin for instance, allows you to use Visual Studio for development, but it requires a Mac peer device to compile the project into native iOS based...

How to extract bold text from pdf file programatically using pdfkit in iOS?

23 Aug 2018 by Akshay K. Bura

I am using PDFKit to display my pdf files. I've integrated the searching functionality but I want to search only bold texts/words. I'm wondering is it possible to do what I'm looking for or does Apple don't allow it? Because String data type is from Foundation class and UIFont is from UIKit. I...

What are the equivalent MX tables related to MT messages?

4 May 2017 by Alex2 101

I want to get the equivalent MX table related to various MT messages such as MT 102/103 etc What I have tried: Has developed and extracted MT Messages such as 102,103 etc. Need to equivalent MT mapping for respective MX Messages.

How to cast my parsed json into data model class swift 3

15 Apr 2018 by Ali Asadi

my model class is a little complicated so swift 3 can't set the data to my model what can I do about it? if you need I my codes just ask me What I have tried: let google=GOogle(Json:myjson) class Google{ var results = [Results]() }

How do I detect if the user has touched the ground in Apple watch os app development

7 Dec 2022 by ameen khalil

Hey Guys, I am trying to build an apple watch app, which will detect when the arm of the user touches the ground or the user goes towards ground. example use case: Burpies, this is one type of excersize where a man stands up, does squats and...

how to convert sqlite datetime to nsdate in swift?

18 Dec 2017 by amit_83

how to convert sqlite datetime to nsdate in swift?My sqllite column is set as default value by current time stamp. Now i am trying to get the value using but exception raise when going to formate the valueBirthAt is the NSDate typevar date: String? =...

how to handle special charecter in swift

26 Sep 2014 by amit_83

Hi All,I want to save data in to sqlite using swift. How can i handle the special character in swift when saving the data?

how to convert sqlite datetime to nsdate in swift?

6 Oct 2014 by amit_83

It helped me public func getDateFromString(date: String?) -> NSDate? { if var date1 = date { let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "MM-yyyy-dd HH:mm:ss" dateFormatter.timeZone = NSTimeZone(name: "UTC") ...

How to save UIImage into byte using swift ?

10 Apr 2017 by amit_83

Hi All,I want to save UIImage in sqlite database using iOS swift. How can i do this?Also when i retrieve bytes then i want to convert this into UIImage.

Flutter firebaseauth - unrecognized selector sent to instance 0x20d326df8

30 Apr 2022 by Anar Aliyev 2022

I am trying to add Firebase Phone Authentication in my app but getting error every time when I want to send tel number to firebase. It states that - unrecognized selector sent to instance 0x20d326df8. I am using real IPhone not simulator. Here is...

How can I upload a tar.bz2 file to openstack swift object storage container using Python swift client?

28 Mar 2024 by Andre Oosthuizen

Your issue lies within the message - Quote: TypeError: object of type 'TarInfo' has no len() Your 'iter_wrapper' function in your 'swiftclient.utils' module is trying to read the length of a chunk of data, but it's encountering a 'TarInfo'...

If you think that you are good at coding, would you mind helping me with an app that automatically measures somebody's height?

1 Jan 2021 by Andy Allinger

Could this be done by sonar? The user puts the phone on his head, then the phone sends out a chirp, the sound wave bounces off the ground and the microphone hears it.

Augmented-Reality

Swift Split data in UITableView using UISegmentedControl iOS

2 Mar 2015 by Anil Kumar Ch

Am new to swift.I have UISegmentcontrol with 3 segments i.e. New,Accepted,Completed. I need to display orders separate as New ,Accepted and Completed.and am using one tableview with custom cell for displaying orders data. am getting data from JSON and i can display the data on tableview.Now i...

How Can I Categorize My Json Data In Uitable Using Swift In Ios

9 Mar 2015 by Anil Kumar Ch

Hi,I am unable to categorize my data which i am able to get from JSON in swift.like for example: if i am having a list of data. i like to seperate my data based on one Column value. if i am having a Column named as Status under this column im having different status like: New, Accepted,...

A simple sql questions

22 Apr 2015 by ankur1163

I am making login page. Now, when i put username, password, it keeps rotating and doesnt do anything. I started it in debug mode and saw that it doesnt loop through code inside while statement>>>>>>>>>>>>>>>>>while(rdr.Read()) { int RetryAttempts =...

Write a function f where f(f(x)) = -x

15 Apr 2021 by Arvind Patel Apr2021

Write a function f where f(f(x)) = -x (assume x to be an integer), any programming language would do. What I have tried: How can I write the following fuction?

Is there any pod for giving shadow effects to buttons and other control in swift 4.2? Please help me with that!

3 Jun 2019 by Ash_savvy

is there any pod for giving shadow effects to buttons and other control in swift 4.2? Please help me with that! It's been only two weeks I started swift, and two weeks I spent for this!! Someone please help me!!. What I have tried: I have tried Material design MDKit! but doesn't worked in...

How dhow can I handle multiple inputs in textfields and save them to coredata in swiftui? O I...

20 Dec 2020 by Batuhan Baran

I'm creating more than one textfield according to user's input. When user enters 3 then I will create 3 textfields using foreach loop but I don't know how I can handle inputs that will come from these textFields? also I want to save these inputs...

Newbie programmer here using swift. How to change a struct to a class?

30 Apr 2016 by BossGiveMeArrays

I am using the Swift Programming language. Here is the code:class CalculatorBrain9iOS{ ***bunch of code*** private var accumulator = 0.0 private var pending: PendingBinaryOperationInfo? private struct PendingBinaryOperationInfo { var binaryFunction:...

How to record a stream audio from radio online using iOS SWIFT ?

19 Feb 2018 by brenntengel@yahoo.fr

i've been looking for months now to find out how to record a live audio stream using swift ? please give me a hint a small code to start . regards What I have tried: This code is in java i want the same in Swift please while ((bufferLength = inputStream.read(buffer)) > 0 ...

How do I send data between an iPad and a windows pc?

24 Jun 2022 by Charles Urban

I'm currently developing an app for a company who wants to be able to press a button on an iPad that will launch a program on a windows pc, gather information from the windows pc and return that info back to the iPad. What I have tried: I've...

What are the equivalent MX tables related to MT messages?

4 May 2017 by CHill60

You will need to download the Swift specs for their messages. I used to have them but I believe they are part of the support package so I wouldn't be able to share them anyway. Contact SWIFT (SWIFT – The global provider of secure financial messaging services[^]) or you might get some luck on the...

Multiple headerview in tableview in swift

2 Jan 2023 by chirag patel 2023

I want to create 3 headers in the tableview given in the images and 8 students in each row, my code is as follows https://i.stack.imgur.com/zynoj.png[

Unwind segue not working iOS swift

21 Jan 2017 by Christopher Smit

Good day,This may be a dumb question, but I only started with swift about 3 weeks ago. I am using SWRevealViewController to display a menu on my app. From this menu I am going to a certain view controller based on selection. From that selected view controller I would like to unwind back to...

Good or bad practice to send email using PHP script for iOS app

23 Jan 2017 by Christopher Smit

Good day all,I recently ran into the problem where I found out that Apple does not allow developers to send an email directly from code without user interaction. This causes some difficulties on my app as I need a code generated email which is in HTML format to be sent from my website server...

Joining two SKSpriteNode together

25 Nov 2015 by ci3.co.uk

Hi Code Project MembersI am in dire need of some help, please see below. I am having trouble finding a solution!iPhone 6 Demo AppUsing SpriteKitWhat I would like to do is to attach two SKSpriteNodes together.Node 1 square 100x100Node 2 square 50x50I would like the two...

Joining two SKSpriteNode together

25 Nov 2015 by ci3.co.uk

Forgot to add, both Nodes need to be affected by Physics

How does one effectively utilize Apple's xcode swift documentation?

14 Mar 2017 by Code Different

I am a Swift and Xcode beginner, and I have read Apple's "The Swift Programming Language" and understand the fundamentals of Swift quite well. But when I try to refer to the documentation to know what functions to call, etc to do something not often done (such as using Replay Kit) I run into...

What language should I learn?

9 Jul 2018 by Codeboyyy

I am interested in software development. I have learnt a little bit about some languages; Java, JavaScript, Python, HTML and CSS. In the future I want to get a job as a software developer and when I go on job descriptions of software developer jobs, they all say different stuff. So I am trying...

Should I go to university or do an apprenticeship?

5 May 2018 by Codeboyyy

I am currently studying a BTEC level 3 General IT course. I am confused as to whether go university or do an apprenticeship. They both have their ups and downs. While an apprenticeship will more often than not, guarantee me a job, I am not sure how well it would pay as in after completing the...

Coder Interview: Val Polouchkine - Developer Advocate

30 Mar 2016 by CodeProject, Val Polouchkine

Welcome to our continuing series of CodeProject interviews in which we talk to developers about their backgrounds, projects, interests and pet peeves. In this installment we talk to Val Polouchkine, a Developer Advocate for Twitter.

How to make webview not do full screen? Xcode

19 Apr 2020 by Cody O'Meara

I am making an app that has many tabs that will go to different links on my website depending on the tab Item. I looked up how to get a website on using the webView. I added the webview and made a small area to show for showing that it is not...

Write a function f where f(f(x)) = -x

15 Apr 2021 by CPallini

You know, you may accomplish this task using a function returning the complex number obtained multiplying x by sqrt(-1). Using other approaches you have to return, together with the integer result, and additional info. There are several ways to...

Make a call with callkit? It's not dialing.

21 Sep 2020 by Dave Kreskowiak

You're probably going to have to ask your question on the Apple Developer Forums[^]. The chances of anyone here with experience on that library are very low.

Star print problem using swift for-loop.

24 Mar 2022 by Dave Kreskowiak

You're not looking at the pattern in those lines, specifically, what happens to the count of the number of stars from one line to the next. That's all the help you're going to get because the rest is easy.

How to Add Live Activity to Your Existing Project - Part I

5 Jan 2023 by Dearich

First part of the ultimate guide on how to add a Live Activity feature to your project

Developing a Private Network Connection iOS App Exploring OpenVPN Protocol

29 Jun 2021 by Dener Araújo, André Marcos (Advisor)

A Mobile Application Development for a Private Network Connection on iOS Platform Using Prococol OpenVPN

Catching the Bug… Server Side Swift

21 Aug 2016 by Dennis E White

Catching the bug… Server Side Swift

How to access a variable in swift outside a given function

28 Apr 2017 by Dennis E White

not sure what you expect there to be inside of ar1? the way that I see it there should actually be nothing in it. I would recommend that you read up some more blocks and closure. as just a note the code block that you are running will execute separately from the thread where you are...

Programmatic iOS UI Development

30 Apr 2019 by Dennis E White

Programmatic iOS UI Development

Star print problem using swift for-loop.

24 Mar 2022 by dex1996

Star Print Problem Using Swift For-Loop. I am a swift beginner. The teacher gave me the questions. I tried to work for it. However, the teacher expect to have another solutions. Could anybody give me some suggestions? //Question01 * *** **...

How to store JSON data as an array

19 Apr 2017 by Dharani karuppasamy

In the below code . i want to store that url (It is JSON Data) as an array. please help me What I have tried: let ur = URL(string:"http://demo.cogzidel.com/dropinn416/mobile/search/discover?common_currency=INR&start=1") let task =...

How do I reset program when button is pressed

25 Jan 2021 by dontknowwhatimdoing

Im making a simple question with answer type app, and i want there to be a reset button that brings me back to the first question each times its pressed. import UIKit struct Question { var imageName: String let...

How to search with scopes

14 Mar 2021 by dontknowwhatimdoing

I'm trying to make a tableView of cards in a deck that have two scopes Questions and Rating. this is my code: import UIKit class DeckTableViewController: UITableViewController, UISearchBarDelegate { static let...

Making an skspritenode collide with another skspritenode through the use of a projectile image

23 Jun 2019 by drobotjosh

I am having a lot of troublefiguring out why my projectile will not shoot the image of luke. I have tried many different methods to try and counteract this but none of the strategies have seem to worked. I would really love some guidance and apologies in advance for the amount of code. import...