Questions tagged [ios]

iOS is an operating system for mobile devices developed by Apple Inc. that is currently used in their iPhone, iPod touch, iPad, and Apple TV (2nd generation) devices. It shares a lot with Mac OS X, but is optimized for touch-based interfaces. Use this tag for questions about iOS-specific code.

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67 views

How to load and get data from 2 files

I want to load 2 files and show this data in 2 strings. I trying to do it like this and it works fine. But I think it is not the best solution... How to do more elegant solution? ...
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2answers
82 views

Better way to provide data to UIKit component from Combine pipeline

Today I'm researching how to provide data to UIKit component when using Combine pipeline. I could see tons of tutorials about how to use SwiftUI + Combine from internet, but not found anyone helpful ...
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1answer
128 views

JSON parsing service

I created the following service for the purpose of sending in a file for parsing. I'm using the generics so that when I call parse() I can pass a custom type ...
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1answer
48 views

Swift iOS rewrite a function that use Firebase database without updating a global variable

I'm learning swift programming and i built a music trivia app for iOS that use firebase real time database. I have a function that before the game start get the number of record for each category of ...
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52 views

Which is better-way to casting model

I need to convert my model to fit data in tableview cell finding better approach ...
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2answers
133 views

What can I learn from this coding test?

So I was recently asked to complete the following challenge for an interview: Programming Problem Provide a production ready solution that accepts a new user name, validates a single string input as ...
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1answer
98 views

UIView position updates based on device motion via RxSwift

I've created a simple function to work as a level, where the dot on screen is centered when the device is completely flat. It changes position based on device orientation. I use RxSwift to update the ...
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1answer
244 views

Sorting JSON items from a site

So I recently applied to this job for iOS Developer and was invited to complete the following code challenge: As a next step, please complete this coding exercise in order to proceed with our ...
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1answer
60 views

Improving sqlite3 code in swift using c api

Trying to come up with a pattern where the code to open db, writing queries is elegant and clean while handling all possible error conditions. Following code ...
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1answer
61 views

Break music player into usable components in SwiftUI

I created a music player using swiftUI.I need to ask a question when I break up my player into usable components. How should I take this approach with the music player? because the music player is one ...
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0answers
21 views

Is this way of handling events in a Xamarin project memory safe?

I inherited a Xamarin project and I'm trying to find my way. The first task I completed involved creating a new reusable view and adding it to an existing screen. This was iOS specific, so I went and ...
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1answer
119 views

SwiftUI Dot indicator

I want to understand if I got this concept correctly. I should start work from ViewState; a reference type object holding the state of a view. Here it is called <...
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1answer
98 views

POC for GithubUserFinder

I would like to request iOS developer community to please review my POC i.e. [GithubUserFinder][1] which I have created as part of job screening test at T-mobile Bengaluru. I have around 2 years of ...
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0answers
89 views

Combine asynchronous return values in SwiftUI

I have 2 asynchronous return values from 2 different classes, one from HealthKit, the other from MotionManager. I combine the outcome of these classes through a combinedViewModel. The code works, but ...
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2answers
94 views

Convert C to Swift

I trying to convert this C code for calculating distance from RSSI to Swift code. I try to do it by myself, but considering I'm beginner, I need help in how to do it. Here is C code: ...
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1answer
41 views

Service Locator with Lazy Loading in Swift

I am experimenting with the ServiceLocator pattern. I'd like to support lazy loading of items. ...
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0answers
102 views

iOS Core animation cancel and restart [closed]

There is a simple movement CAKeyframeAnimation, what needs is that I can cancel and restart the animation freely. The key point of the following code, is that I ...
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3answers
910 views

Create UIView programmatically in Swift

I am generating View and setting constraints programmatically in UIViewController ...
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3answers
117 views

I want to take away WebService call from UIViewController

I am using Moya to make network calls in Swift. In my ViewController I am calling the WebService and creating a model from response. ...
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0answers
138 views

Java's AtomicInteger equivalent in c#

I'm trying to replicate Android's GenerateViewId() to assign a unique Tag to dynamically created UIViews in Xamarin.iOS. ...
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1answer
81 views

Initializing more than one instance object at a time in init method

I have a RadioStation class file and a view controller where I create two station objects based on this class, one for FM and one for AM. I created both of these ...
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1answer
52 views

Handle HTTP and BLE requests

Im implementing and designing a workflow that performs both HTTP and BLE requests. Im having trouble figuring out the best approach to design a service to handle both types of requests, and manage ...
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2answers
283 views

100DaysofSwiftUI - Project 1 - Challenge 1: Convert temperature units: Celsius, Fahrenheit and Kelvin

This is my code to solve the challenge in 100 Days of SwiftUI by Paul Hudson. This is the first challenge in the series and I chose to convert the temperature units from C° -> F°, F° -> C°, C° -> K° ...
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2answers
116 views

Searching within a data model using an array matching multiple terms

I have a standard tableview app that displays information from a data model array that uses a custom class. There is a UISearchController to filter the data. A ...
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0answers
32 views

Manage Recent List Of user and staff type objects

So I have a view which shows recent 5 staff users and 5 customers for a restaurant app. I am storing this in user default. I am also managing the currently selected object. Here is my class. ...
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245 views

Swift for flattening JSON nested objects

I am receiving JSON from a service API (Airtable) that returns an object with a single key records which is an array of objects. These objects have most of their ...
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1answer
61 views

iOS: prettify random color for debugging

iOS: prettify random color for debugging I used to use random color to debug, from colors I like ...
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1answer
143 views

iOS Body-Mass-Index (BMI) app

This is "homework" from a Swift course, which I'm currently taking. A mockup and the image-assets are provided by the instructor. We are supposed to create the layout and to write some appropriate ...
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1answer
79 views

Convert image to grayscale

To convert JPEG file, C function, bgraToGrayscale is called from Swift. Is there a better way to 1.allocate memory and 2.access pointers than the ways they have been done in code below? And ...
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1answer
203 views

Unit Test class from iOS

I am learning to write test cases in iOS using Swift. I was stuck at testing static functions from my Utilities class, so I ...
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2answers
91 views

Handling view state for cardview

I have two buttons 1) Chat button 2) Annotation Button On tap each view comes from bottom and when tap outside view hidden back (Please refer the screen shot) On tap On annotation On tap on ...
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1answer
183 views

ValueAnimator for IOS - Did I butcher it up?

I am trying to make an IOS tool similar to Android's ValueAnimator... more or less This is useful for situations where you simply want a value to "animate" over time, but rather than necessarily ...
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0answers
97 views

Clean way of passing parameters in swift

I am creating a user request model to pass-params for web service call toRegisterParams() is used call register web service request toLoginParams() is used call register web service request so my ...
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0answers
77 views

Convenient way to make an UIImageView ExpressibleByStringLiteral

I want to reduce boiler-plate code and write like this when developing in iOS: let imgView: UIImageView = "share_fareware_text_bg" Here is implementation code: <...
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0answers
45 views

Combining the text from selected TextFields into 1 TextView - Conditionally [closed]

ViewController2 (source) Has several TextFields, each with their own switches. ViewController1 (destination) Has one TextView waiting for data to be sent to it from ViewController2 (source) But i ...
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0answers
125 views

iOS Calendar Navigation and Layout

In an effort to explore how the default calendar app works and to experiment with container view controllers, I created the following mock app. See this post for more info about my motivation for this ...
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1answer
47 views

iOS Attributes in the data model

I am working on a product-related app where the data model for a product attribute feels too heavy. But I can't split it into several small data models because they are all about goods. At present, ...
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1answer
79 views

UITableView allowing some kinds of requests to be deleted with swipe gestures

I have a tableview which shows a list of objects called Requests. It has 3 segments. Namely Accepted, Received and Sent. And the objects for each segment are in 3 arrays. I want to enable deleting ...
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1answer
262 views

Cookie Clicker Game

I'm getting into Swift iOS development, and decided to create a Cookie Clicker application as a first attempt. Since I am very new with Swift, I would like feedback and criticism on everything ...
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0answers
44 views

check condition with userdefaults value exist or not [closed]

I am check first time userDefaults will not save value return 0 else get value from userDefaults I am checking if userDefaults will not save the value, and If it ...
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0answers
88 views

Swift iOS app for showing motivational quotes, with multiple screens

I'm one month into self-learning Swift, and I would like some advice to improve my coding skills. I have listed 2 situations that I think I need to improve. I'd like some feedback focusing on my use ...
2
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1answer
59 views

Playing a sound depending on the currently displayed flash card image

I've developed a fully working flash card app for kids. It has a UIImageView that cycles through 26 cards (abcs) via a gesture click and a music button that will ...
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1answer
48 views

App sends location data to website

Explaining the idea and first steps Today, I had the idea to do a website which displays my current position. I searched in the App Store for an App and found one named SendLocation. This App ...
4
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1answer
84 views

Force-unwrapped property as a contract

I have a class, which is meant to show a full screen modal controller with a set of actions (apart from actions it also has some static content, a lot of labels and images which are irrelevant, so I ...
3
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1answer
167 views

Splitting a long string based on its graphical presentation

I got a long string, let's call it Story. I fetch this story from a database so I don't know how long it is. I want to display this story in a view, but what if ...
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1answer
44 views

Calling API only once on changing segments

I am working on a screen which has segmented control and has 3 segments (year value 2019, 18, 17) and what I am doing is that on each segment click I have to reload data inside a tableview (getting ...
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4answers
571 views

Showing a welcome screen once per day

I have this method, which first basically shows a Welcome screen to user only once per day. The code I have so far is this ...
5
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1answer
324 views

Networking structure for Swift iOS app

I would like any constructive comments regarding the structure of this simple App that takes an API response and then displays on a table view. The URL is written in a ConstantsAPI file ...
2
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1answer
47 views

Checking user verification status

The User story is as follows: Users are allowed to get "verified", so other users know they have passed a background check. After tapping "get verified" button, or the "verification badge" ...
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2answers
303 views

Counting sort in Swift

I have this sorting algorithm which takes an array of dictionary values: guard var imageUrlString = anyImage.value as? [String:AnyObject] else { return } I then ...

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