Sharing information between iOS app and an extension Jul 16 2019

If you decided to create an Extension for your app (maybe a Today Extension), you will quickly find out that you need to access data from your main app. And soon after, you will find out that you can't access files in your main app directly from the...

UITableView notes Jul 14 2019

There are small details of UITableView that are simple but makes the table view look good. One of those is hiding the separator for empty cells.

A table view has a header, body and footer. Most of the time, when we start a project, we drag a table...

Coordinator iOS Jul 12 2019

I am using the coordinator pattern on my Counter App. These are the steps to implement the coordinator pattern.

Text extraction tools for macOS and iOS app localization Jul 10 2019

Localization is not only translating content but adapting the content to culture, language and customs. This makes our apps more intuitive and engaging for our users. We can localize not only text, but we can also localize images, sounds, shortcuts...

Understanding SSH Keys and using Keychain to manage passphrase on macOS Jul 3 2019

Accessing remote servers using passwords has been discouraged for a long time, and it is suggested to use SSH public keys as the authentication method. I've noticed that for some users, the setup and maintenance of their keys becomes a problem, so...

Tracking where settings are stored on macOS Jun 28 2019

In this post, I'll explain how to figure out where macOS stores specific preferences and how to modify them using the command line tool defaults. Knowing where the preferences are stored and how to manage them programmatically allows us to create scripts...

Using Ansible to automate local tasks and setup Jun 19 2019

We can use an automation tool like Ansible to configure servers, set up CI/CD pipelines, and many more DevOpsy tasks.

This same tool can be used to maintain the setup of our day to day environment (as suggested by my friend Gerardo Santoveña) or automate...

Xcode code structure - matching groups and filesystem May 24 2019

A folder structure makes it easy to navigate and understand any project. On Xcode, we can build the project structure using groups. The problem with this is that it doesn't reflect on the filesystem. What this means is that if we are looking at the...

Apple's Natural Language Framework basics - Status of Tibetan support Mar 11 2019

The Natural Language framework, introduced by Apple in 2018, provides tools for developers to process and analyse text. The framework provides the following capabilities:

• Identification of language and scripts
• Tokenization
• Tagging
• Lemmatization

Using ICU transforms in Swift Feb 28 2019

The International Components for UnicodeICU provides powerful libraries for working with Unicode. In this post, I'll explain the basics of how to use ICU transforms in Swift. There are many areas to explore in ICU and Swift, but we will focus on using...