Swift Using Codable protocol in Swift 4 Swift 4 Codable protocol to decode and encode json data and model objects. Explained with examples.
UITableView Add headers and footers to tableview sections In the previous post, we saw how to add header and footer views to entire table view. In this post, we will see how to add header and footers to individual UITableView sectionsBefore
yyyy Challenges of DateFormatters Working with DateFormatters is tough - At least on iOS. Today I will show with an example how I shot myself in the foot while working with simple DateFormatters problem. Here's the problem
iOS Making user friendly mobile apps We all love using apps, don't we? They are great utility and ubiquitous after the propagation of smartphones all around us. However, as I do and I am sure lots of other people
iOS How to get the iOS App Metadata in Swift Working on a new app could be exciting. However, there are certain things or information which you might want to get as a part of the core feature. One of them is the
Swift When to weakify Today I am going to talk about one of the discussion prone topics on iOS platforms. Detecting memory leaks and when to apply weakify. The topic came up while I was recently performing
Swift Swift - Fighting memory leaks in closures Swift is a great language. In fact, it's among my top 3 favorite languages. It is quite strict in terms of discipline and best practices which pay off in the long-term to offer
Regular Expressions Regular Expressions in Swift and iOS I didn't actually plan on writing this post. However, things didn't go as I expected them to go. Today I was helping someone with Regular Expression which I thought was my forte and
Swift Closure Trick in Swift Today I learned a closure trick in Swift. Usually when expression is assigned to a variable on left, it is evaluated instantly. For example, let value = complexCalculation() func complexCalculation() -> String { return
iOS Swift 4 - Multiline string literals support Multi-line support in Swift 4. Now add multi line support with double quotes using Swift 4 and Xcode 9. Tutorial with example on adding support.
UIKit Using Autolayout to Dynamically Resize UILabel We all love Autolayout, don't we? I had a less than ideal experience with it when I started. However, after continuous practice and reading a Book - iOS Auto Layout Demystified I got
iOS Writing an app with VIPER architecture - Part 2 I have written a part 1 of writing an iOS app using VIPER architecture. This covers fundamentals and basic example of using VIPER, creating models, entities and utilizing them in the app. This
iOS Writing an app with VIPER architecture - Part 1 Last week I came across one of the many awesome frameworks on iOS. Having recently worked with MVVM and MVC, I was bit hesitant to learn VIPER, since more frameworks you learn, there
MVVM Comparing VIPER vs. MVVM Recently I started playing with VIPER architecture. Although I was quite hesitant trying it out, it turns out it's not all that bad as I expected. It'e certainly better than traditional MVC iOS
Facebook An iOS library to apply Pride Effect A Library to apply Facebook style pride parade effect to photos With the ongoing LGBT pride month, it reminds me of the pride effect I created a couple of years back. My original
iOS List of Interview Questions for iOS Developers Over the years of iOS development has taught me some interesting facts about Objective-C and Swift. Some of them I learned from my own experience and most of them either from senior colleagues
iOS Wrapper for 3D touch preview implementation using Swift 3.0 It's been a while since I started working on 3D touch implementation on iOS 6s Plus devices. Luckily, even through it's a hardware feature iOS simulators still supports simulation of 3D touch of
iOS10 Core Data with Mantle in Swift Today we are going to talk about how I used Core data in conjunction with Mantle wrapper to directly store and retrieve data out of database without directly interacting with Core data. This
iOS iOS - Communication from Javascript to iOS This is the second part of two series article. You have already read the first part which shows how to transfer data from iOS to JavaScript. In this part we will see how
JavaScript iOS - Communication from iOS to JavaScript This is the first part of a series about communication between iOS and JavaScript. In this part we will see How to call JavaScript functions from iOS How to get return value of
iOS Lessons learned from 3D touch demo This weekend I spent significant amount of time working on the previously inactive 3D touch demo project. I added few tweaks, made little experiments and removed extraneous code from the repository. Below are
iOS Custom Operators in Swift with Generics Swift introduced us a new era of custom operators. Unlike Objective-C, it will allow us to define our own operators and perform operator overloading if necessary. Although I haven't come across such use
iOS Making a crater in UIView with CALayer Although title sounds horrible, believe me - It's not that bad. This is a trick I learned from StackOverflow post. Although seemingly innocuous, it took me a while to figure out given the
iOS try-catch Blocks and Unit Tests - Swift 3.0 In the last post I wrote about implementing error handler in Swift 3.0 using try-catch block technique. In this post I will go over how to unit test it. Since we all
Swift 3.0 try-catch blocks - Swift 3.0 Today, I will try to go through some of the error handling techniques Swift uses. As we all know, the standard way to report error in Objective-C is passing an error pointer such