Making the Switch
iOS
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.
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.
Watch App as In-App Purchase?
How do you sell a watchOS app? Through in-app purchase of course, like these fine apps have done. However there’s a caveat condition that you need to guard for, otherwise you risk having angry customers.
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?
How Developers can Draw Icons for iOS Apps
Are you an iOS developer who believes that making icons is purely witchcraft? Perhaps you have an inkling to be able to do some of that wizardry yourself? Here is a step-by-step process on how to create icons for tab bar buttons as well as other glyphs. Techniques that you would find useful for those […]
Eleven Books and Resources for iOS Developers to Get Started on UI/UX.
Were you passed on a job opportunity because you were blind on user experience topics? Do you feel challenged in educating clients, colleagues, or even managers on user interface topics? Here is a list of references that can help you.
Swift Snowflake ID Generator
Make thousands of unique 64 bit identifiers at every millisecond without the need of global synchronization.
Trying Core ML with Swift Playgrounds
How to safely try out Apple’s new machine learning libraries without bricking your main machine. Goodbye beta blues, hello new ideas!
A Swift Promise
Futures/promises are great to coordinate persistence and views to ensure responsiveness in today’s native apps. However bringing thousands of lines of foreign code just to have this small functionality may not be cool. Here’s a hundred-line implementation of futures/promises in Swift 3.1
Should You do Free Work to Get Hired?
Have you been asked to do a sample project as part of a hiring process? I’ve done it, not only once but **twice** as part of the same process. Here are those projects. You should be able to learn a thing or two from it Either learn the iOS programming techniques behind these two 40-hour […]
Is Your Server Ready for iOS 9 and El Capitan?
Apple is enforcing a stronger encryption that applications need to use when connecting to their backends. Is your server secure enough to meet Apple’s standards? Being HTTPS doesn’t necessarily imply that it’s good enough.
How to Design Apps (Even if you’re not a designer)
You want to design apps? You either need to hire a designer or become one. Luckily it isn’t too hard to come up with a reasonable design.
Integrating iAd with Cocos2D
How to incorporate iAd to your Cocos2D director view.
Copyright (C) Sasmito Adibowo. This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.