iOS Drag and Drop on iOS using Swift Hello folks, it's been a while since I wrote my last article. Today we're going to learn how to implement drag and drop feature on iOS using Swift. To see in advance what
UICollectionView Tutorial - Creating Programmatic UICollectionView in Swift Creating a UICollectionView could be stressful - As compared to dealing with UITableView. But things don't have to be this way for so long. Every time I have to add a CollectionView in
memory semantics Swift Value and Reference type semantics - Structs, Classes, Struct inside Class, Class inside Struct Long ago Swift introduced a nice concept differentiating between value and reference semantic using Struct and Classes. As we all know, Struct is a value semantic, which means when value of one struct
Codable Codable - Applying Data Transformations Codable may not just all be blindly transforming JSON data into model objects, but you can also apply formatting to it. Examples of formatters include, but not limited to date formatters, URLs, and
Codable Codable - Dealing with built-in and custom `keyDecodingStrategy` Apple introduced a keyDecodingStrategy parameter as a part of Swift 4.1 release. Although it's been out for a while, it's a huge change. We have many instances where server and mobile apps
Swift Using Codable Protocol in Swift 4.1 Swift 4 Codable protocol to decode and encode json data and model objects. Explained with examples.
Git How to apply Git Diff and deal with Patch Failed error Git diff is a powerful command which allows you to see you recently made changes whether they are staged or not. There are however circumstances when you want to stash your diff on
Composite Layout iOS 13 - Building App Store Layout using UICollectionView Composite Layout on iPad As I mentioned in in earlier posts, recently I have been playing with new UICollectionView APIs introduced at WWDC 2019. 2 Weeks ago, I started my ambitious project to re-create an App Store
UICollectionView New Collection View APIs in iOS 13 - UICollectionView Compositional Layout This blog post is based on the Session 215 - Advances in Collection View Layout from WWDC 2019. I would highly recommend to go through this video to learn basics about new collection
Advanced Collection View Layout in iOS 13 - Supplementary Views Today we're going to see the advances in Collection view layout as introduced in iOS 13. This post is based on WWDC 2019 Session 215 - Advances in Collection View Layout. Many examples
Test plans Testing in Xcode 11 - Utilizing Test Plans Today I am going to write about new testing improvements that Apple introduced as a part of Xcode 11 Beta 3 release. As a reference, this post is based off of this sessionApple
Diffable iOS 13 - Diffable Data source for UITableView and UICollectionView Before you begin this tutorial, please make sure are running this tutorial on Xcode 11.0 with device running iOS 13 or moreThis year's WWDC was spectacular, not just because of introduction to
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
UITableView How to add HeaderView and FooterView to UITableView Recently I was playing with support to add header and footer view to UITableView. However, task wasn't as easy as adding UITableViewCells to the table view. Header and Footer views acts slightly different
DutchPHP A Review - Dutch PHP Conference 2019 TL;DR; I rate Dutch PHP as a 5-star conference which excelled in all the aspects including, but not limited to organization, food, quality of talks, communication, and hospitality. Back in February as
Xcode Xcode symbolic breakpoints - Break at method call Today I am going to write about the big advanced debugging feature of LLDB. I am calling it advanced because I myself didn't know about it for a long time. It allows you
Travel Retro Session - New England Trip 2019 I already wrote a huge article about my recent trip to New England. This article just gazes upon that experience and tries to enlist the lessons I learned which hopefully be useful to
Travel Spring 2019 - New England Trip This spring, I had a little vacation in New England area with my friend. Springtime is a great time to visit National parks, waterfalls, and, trails. It's not too cold, not too hot,
Public speaking A year since my first international speaking appearance Time goes really fast! It's almost a year since I had my first talk at WeAreDevelopers World Congress 2018 at Vienna, Austria. Quite a scary experience since it was my first talk in
Management Are you a Senior Engineer? What is this term Senior Engineer? Does it carry a lot of weight? Responsibility? Sense of achievement? Accountability? Answers may vary. But we can all agree that it's the person who has been
New York Applying for a Schengen Visa (Again!) I am planning to go to Netherlands again this June. My last visit was done made in March 2019 for AppDevCon. It was amazing time, and by the time I came back I
Apple Pay Apple Pay, Error Reporting and Crash Working on the Apple platform brings a new kind of challenge and excitement. The environment where it will never cease to amaze you with exciting and never-seen-before circumstances. Today I ran into similar
Museums Thoughts on visiting Museums When I visit the new city, the first thing I do is to see if there are any museums I can visit during my free time. I love going to museums. They are
Travel Useful Travel tips from my experience I have been traveling quite a bit recently. It's generally for tech conferences, business visit, or visiting a family overseas. After all the travel in last 8 years I have learned so many
Async Understanding the async behavior Handling async behavior is tricky. I was caught into same gotcha when I first started dealing with async code few years back. It's useful behavior in most of the programming applications, especially when