Fresh Beginning

async-await

How to Convert Existing Async Code to Use async-await using Swift and iOS

Software engineers are expected to spend a lot of time on improving and modernizing the codebase. If the codebase hasn't been given enough attention, it's possible that the codebase might get deprecated soon and will have undesirable consequences for production users. In today's blog post, we will see how to

iOS

Create a Scrollable Content View in Swift and iOS

Have you ever worked on iOS and thought, I have so many views I want to show them in the scrolling content view. But wait, won't UITableView be an option for them? Yes, sure. But there are many cases when you don't need to use the reusable cells and simply

iOS

How to Measure and Compare Execution Time in Swift and iOS

When you're developing an app, writing it for low-end devices with high network latency makes sure your app does not provide a degraded performance for some users. In order to know how performant our app is, we can add support to provide a timing summary in terms of execution time

Advanced SwiftUI

How to Initialize State and StateObject in SwiftUI

State and StateObject are standard mechanisms in SwiftUI to maintain and update the view state. However, their initialization is not intuitive. Unlike regular Swift variables, you can directly instantiate them. They can only be initialized in certain ways while using them in the Swift code. In today's blog post, we

portfolio

Portfolio

Hello, I am Jayesh Kawli. I have been writing iOS applications for the last 9 years. During this time, I got a chance to work on iOS applications from various domains. Below is the list of all the apps I was responsible for developing and releasing in the app store.

Advanced SwiftUI

Using MVVM Architecture with SwiftUI - Clean Architecture

MVVM has been a choice of architecture in iOS development for a long time. It survived the Objective-C era and has been quite popular in Swift world too. However, things became slightly complicated when SwiftUI came along. It was a bit confusing to see how it can be used in

reuseIdentifier

A Better Way to Generate Reuse Identifiers in Swift and iOS

iOS offers an elegant way to improve table view and collection view performance by cell reuse. These scroll views may have millions of cells, but iOS only stores the visible cells in memory and reuses them as they go out of view. This enables OS to save on memory and

gradient

How to Use Gradients in SwiftUI - Angular Gradients

This is the third and final article in my series on gradients in SwiftUI. Previously  I published a couple of following articles on SwiftUI gradients. How to Use Gradients in SwiftUI - Linear Gradients How to Use Gradients in SwiftUI - Radial Gradients In today's article, we will learn what

AttributedString

SwiftUI Attributed Strings - Decoding and Applying Custom Remote Attributes with Markdown and Attribute Keys

💡This is the next part of my previously published blog post on Attributed strings in iOS 15 - SwiftUI - Attributed Strings Improvements in iOS 15. The first post explains concepts that are needed to understand this post in detail. If you haven't read the previous post yet, I strongly

NSAttributedString

SwiftUI - Attributed Strings Improvements in iOS 15

💡The attributed strings APIs described in this blog post were introduced in iOS 15. They are only available on Xcode 13.x running app on the device with iOS version 15.x. Before proceeding with this tutorial, please make sure to upgrade your Xcode and iOS simulator to run iOS

Search

Add Search Experience in SwiftUI Apps

Search is one of the most fundamental operations in iOS apps. For any app with a long list view, search offers a quick way to find the item matching the given keyword. Whether you want to search for a movie title, a book, a song, a favorite person, or even

SwipeActions

Swipe Actions Modifier in SwiftUI

💡The APIs and examples mentioned in this post are only available on iOS 15.x and Xcode 13.x. Before diving into the examples, please make sure to upgrade your tools to use these versions. Xcode 13.x+ can be downloaded from this link.  Apple introduced new swipe actions modifiers

Advanced SwiftUI

Two-way Bindings in SwiftUI

Bindings and Observables are essential for the basic SwiftUI mechanism. One-way bindings are easier, but what about two-way bindings? You want two values to set observers on each other and when one of them changes, it should also reflect that change in the other value. In Xcode 13.x and

New SwiftUI APIs

Customizing List Row Separator Color in SwiftUI

At WWDC 21, Apple introduced many ways to visually customize the SwiftUI views. One of them was to be able to customize the color of row separators in the SwiftUI List. The new API offers a convenient way to customize its appearance. Let's see how to use it with examples.

patreon Featured

Introducing Patreon and Buy Me a Coffee on a blog

I have been writing this blog for the past 6 years. During this time, I focused mainly on tech, but also occasionally wrote on other topics such as travel, food, and management. I put a lot of time and effort into creating these blog posts and I hope they're helpful

mindset

The Power of Mindset

This article was originally posted on LinkedIn. I am re-publishing it here for a wider audience When I started looking for a new job 4 years ago, I didn't exactly have the mindset needed for cracking the coding interviews. I mainly focused on typical interview questions and their answers. Things

Management Lessons

Always be Fixing Broken Windows

This article was originally posted on LinkedIn. I am re-publishing it here for a wider audience. Broken windows theory says that if a single window in a building is kept broken for a long time, the remaining windows will be broken soon. This happens because those breaking subsequent windows get

Interview

Tech Interview Experience - USA vs. Europe

For the past year, I have been interviewing with companies from both USA and Europe and I am seeing quite a notable difference between their process, fundamentals, basic hiring criteria, and general attitude towards candidates. In this post, I am going to summarize basic differences between tech hiring procedures between

Xcode 13

Xcode 13 - Create a Symbolic Breakpoint on Method Name

To improve the workflow and productivity, we need to integrate efficiency into our work stream. Efficiency can either be created with its own tooling or using third-party APIs and improvements. In today's blog post, I am going to talk about new efficiency improvements in Xcode 13 in the form of

pull to refresh

Pull to Refresh Control and One Time Data Fetch Task in SwiftUI

iOS 15 introduced two new APIs to simplify data load and refresh actions. These APIs will allow users to trigger the data refresh on request and allow one-time data load execution on the very first run - For example, when the view has been loaded in the memory for the

Async

SwiftUI - Using AsyncImage API in iOS15

Apple introduced an AsyncImage API in iOS15. This API solves the long-standing image download problem for iOS developers without using any third-party image downloading libraries. Asynchronously downloading remote images from URL has been a long pain point and having to add third-party frameworks only adds to this pain. Let's see

low data mode

Support Low Data Mode Networking in iOS app (iOS 13)

Apple introduced a low data mode feature in iOS 13. Using this mode, (On iOS 13), users can specify their preference to minimize the data usage when the network is really bad or they want to save on their data while being on the cellular network. When the low data

Asynchronous

AsyncSequence in Swift

Apple introduced the AsyncSequence in Swift 5.5. This is one of the major features released in this Swift version to improve the Swift concurrency. In today's post, we are going to take a look at what AsyncSequence are and how you can make your own custom async sequence in

Combine

Building a Network Service in Swift Using the Combine Framework

Hello readers! Welcome to another blog post. Today we are going to see how to build a generic network service using Apple's Combine framework. Making network calls from the app is the bread and butter of any standard iOS application. Today, we will see how to build a network service

Advanced SwiftUI

Using Custom Environment Key-Values in SwiftUI with Examples

SwiftUI offers flexibility in many different ways. One of the ways it does this is, its ability to create a custom environment key-value pair. These are nothing but a collection of environmental values propagated through a view hierarchy. When you don't want to pass down values through a multiple view