Learn how to get use with CoreData with simplification CoreData helper class. Some inspired from Realm.

To access Reminders and Calendar data specifically, must include NSRemindersUsageDescription, NSCalendarsUsageDescription and NSContactsUsageDescription in Info.plist. Note that we also need the contact usage because...

Usually we use UIViewController for many cases, but sometime there is a time that we want app that support vertical-view on iPhone. As I...

This tutorial is build with Xcode 8 and using Swift 3. Realm 2.0.3. Prerequisite: CocoaPods. Introduction to Realm Realm is a great replacement for...

Natural Language Processing is an art to identify the context of what naturally what human speaking or talking into something that a computer can...

iOS has a library called ‘AVSpeechSynthesizer’ since iOS7 that allows app to ‘speak out’ the text from any kind of string, or even attributed...

Speech recognition is the automatic process of converting audio of human speech into text. In iOS 10, there is a Speech framework , same...

Let’s learn how to implement Google Maps on iOS with Swift 3. We gonna install the SDK via CocoaPods, so you will not gonna...

iMessages App is like a mini app that resides inside iMessage chat app. It works as an extension, it can have a cointainer which...

An app extension is not an app. It implements a specific, well scoped task that adheres to the policies defined by a particular extension...

UICollectionView is view component that support grid view. UICollectionView’s implementation is like UITableView, but UICollectionView can be more than grid, it’s highly cusomizable with...

In-app purchase is a way to give more value to the customer from basic feature that being provided from our app. We have to...

This example share a lot of common from UserNotification Example I, it will use time trigger because it’s the simplest way to test notification....

Date objects represent a single point in time. It is independent of any particular calendrical system or time zone. Date is an abstract class...

“Auto Layout dynamically calculates the size and position of all the views in your view hierarchy, based on constraints placed on those views.” Instead...

On this example we will discuss about using trigger with calendar. We have discussed about scheduling a local notification using time interval and we...

On this example we will trigger a notification based on time interval. User Notification is a brand new framework for iOS 10. It evolve...

UIAlertController was introduced in iOS 8, it’s a common user interface on most of the app in iOS. UIAlertController replaces UIAlertView and UIActionSheet. UIAlertController...

Sometimes you want to check a condition and only continue executing a function if the condition is true, such as when you use optionals....

PDF Recources for sketching the UI, flow of the app. Free to download. A4 A4 iPhone 6 Screens A4 iPad iPhone (both vertical) A4...

You will need Xcode 8, and we will write Swift 3. Coding is key for education in information age. In the future many jobs...

Swift 3 is said as the last major changes in the core language. What it means that the code is promised to compilable on...

So you want to build an mobile apps like we do? Sure, why not. But.. how? Let us list some places that we can...

Updated code for Xcode 8, Swift 3. But seems have issue on this setup. When developing apps for iOS, there are plenty of external...

DEFERENCE Content is hero, UI is secondary. Simplify Maximize content Color. Use prominet color to show that an element is tappable or that it’s...

Great icons are familiar because they make an instant connection to the things that we see everyday: a camera, a trash can, clouds. They...