Tag: Apple Watch

Introducing Core Motion: Make A Pedometer

Apple packed a lot of sensors into the small packages that are iOS devices. You as a developer can detect movement in three dimensions, acceleration, rotations, and impact and use those in your applications. All of this brought to your application in the CoreMotion framework. CoreMotion…

Why do we need Delegates in iOS and WatchOS?

About two years ago someone asked me a very good question: Why do we need delegates for UIViewControllers?  He thought Swift  made things easier, but this delegate stuff seems very complicated. Shouldn’t we be able to send a message or initializer between classes? When…

Make a WatchOS 3 Haptic Catalog with a Picker

How does the Apple Watch communicate to the user when they are not looking at the watch face? That is done with haptics. Haptics are sounds and taps letting the user know something is happening. In this lesson, I’ll explain to you how to use haptics…

Accessing the Digital Crown in WatchOS5

[Updated for WatchOS5 Beta 6/22/18] On the Apple Watch, the digital crown seems to be a great way to control your watch. the Slider and picker controls do use it, but direct developer use was prohibited in Watch OS2. In a nice change, Watch…

Adding Actions to iOS and WatchOS Local Notifications

Even if you never want to make an app for the Apple Watch, there’s one place you might want to think about supporting: Notifications. In a previous lesson, we explored how to make local notifications for iOS devices. That lesson ended with a free…

The Complete Table Tutorial for WatchOS2

In last week’s tutorial of this series, we made a simple dynamic table for the Apple Watch and demonstrated static scrolling tables.Based on some running pace data, we displayed the pace I ran at the mile splits. Many apps will need more than what…

Tables and Scroll Views in WatchOS2

One of the most powerful and important controls on both wearable and mobile devices are table views. Table views come in two flavors: static and dynamic. Dynamic table views read data from a collection type and displays it. Static tables allow for a vertical…