Making the Switch
macOS
Time-Limited in-App Purchase
What if you need to create a “holiday special” in-app purchase? The item would only be available at a limited period some time in the future. However those who have bought the item would be able to use it beyond the purchase-able period, including restoring purchases should they need it.
Notarizing Disk Images for Developer ID Distribution
Do you distribute your macOS apps as .zip files? That has been quaint since Sierra. You should package your apps as signed and notarized disk images instead. Otherwise Catalina would say that your package is suspicious. However creating disk images is a rather involved process. Read on to find out more.
Selecting iTunes Provider for Notarization
When your Apple ID is also used for as a publisher for Apple Books or Apple Music, you may hit a snag when trying to notarize your Developer ID application. Here is how to fix it.
Invalid Bundle Identifier Error at Notarization
Notarizing your app? Make sure you name your bundles correctly beforehand. This includes the main app, extensions, and any sub-bundles inside it.
All About In-App Purchases
There are four types of in-app purchases in Apple’s App Store, with their own unique ways to manage it. Learn how to manage an app’s inventory of purchases, get the code base resilient to changes in the business side, and tips on how to implement some more esoteric business models as in-app purchases.
Future-Proof Your Data Persistence
The data persistence stack that is an appropriate decision today may not be an optimal solution when your app has grown. You would need to design your app to withstand the test of time and be extensible for as it grows. Read more to learn how.
Enabling Hardened Runtime on a Sparkle App
Notarization requirements is just around the corner in the coming release of macOS. But the Sparkle updater framework is not yet ready for it. Here’s how you can fix that.
Shared Frameworks in a Hardened Runtime World
macOS Catalina is just around the corner and with it comes mandatory notarization and hardened runtime. If your mac app accepts plugins or otherwise loads 3rd party frameworks and libraries, there are a few caveats that you’ll need to take care.
Which Database to Use for My iOS App?
Choosing a database to use for your iOS app is no simple feat. But what if you have the tools to make an informed decision for your app? What if you can decide for today and design for tomorrow?
Graphic Design Tools that Developers Use
As a developer often you would need to create visuals for others to use. Whether it’s to explain ideas, to inform colleagues, or maybe to include in the software itself. Here is a comparison of the two graphics packages that I use as a developer and content creator.
How to Get Core ML Produce Images as Output
Core ML’s tools to convert other framework’s machine learning models is a pretty awesome feat in itself. However it is by no means complete. I found some issues in converting models which outputs images. Issues which took me a few weeks to solve even after many consultations to Google and Apple’s own forums. But here’s […]
First Dabbling in Machine Learning
I’ve been toying around with retraining machine learning models — one for generating prose and the other for processing photos and separate objects from its background. Here are some of the challenges I encounter as a total newbie and how I got around it.
![[decorative] MacOS developer](https://i1.wp.com/cutecoder.org/wp-content/uploads/2018/11/real-mac-developer@2x-100x250.jpg "Getting Rid of Xcode Command Line Tools")
Getting Rid of Xcode Command Line Tools
Are you being hunted by Xcode command line tools? Have you uninstalled it only to realize that it came back again? If you already have the Xcode installed and really need the full IDE, don’t waste space by having the command line tools installed as well. Here’s how.
Swift Snowflake ID Generator
Make thousands of unique 64 bit identifiers at every millisecond without the need of global synchronization.
Copyright (C) Sasmito Adibowo. This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.