Join Steven Lipton for an in-depth discussion in this video Hierarchy of methods, part of Advanced iOS App Development: Core Motion.
- [Instructor] As we discuss the framework,…you'll find there are different levels…to the classes in Core Motion.…I organize them into the closest…to the sensors in your device,…to the most distant of those sensors.…There are four sensors that could be on your device.…Each device has a different combination…of Magnetometer, Accelerometer, Gyroscope,…and Altimeter.…The Magnetometer measures directions just like a compass.…It is very sensitive and you'll find…you'll have to calibrate…with the other magnetic fields around.…
The Accelerometer measures acceleration in three dimensions.…The Gyroscope, the rate of rotation in three dimensions.…The Altimeter measures air pressure,…or the change in altitude.…There are classes and data structures…to read these sensors directly.…How you read them may change depending on the sensor,…which we'll discuss later in more detail.…The Gyroscope measures rate of rotation, not rotation.…To get a rotation you find the attitude,…which is the next level up in Device Motion.…Taking Gyroscope data,…
- Reading Core Motion data
- Understanding Core Motion methods
- Creating a pedometer app
- Using pace and distance data from Core Motion
- Pushing and pulling device motion data
- Accessing the altitude sensors
- Working with the motion activity manager (CMMotionActivityManager)
Skill Level Advanced
iOS App Development: Accessibilitywith Kevin Favro2h 34m Intermediate
Advanced iOS Development: Working with APIswith Saul Mora1h 59m Intermediate
1. Core Motion Introduction
3. Device Motion
5. Recorded Data
Next steps1m 43s
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