CoreMotion

Access accelerometer, gyroscope, attitude/device motion, pedometer, altitude, and specialized sensors using Core Motion. Targets Swift 6.3 / iOS 26+.

Contents

• Setup & Authorization
• Motion Manager & Raw Sensors
• Device Motion (Attitude & Gravity)
• Pedometer & Activity Recognition
• Altimeter & Specialized Sensors
• Battery & Lifecycle
• Common Mistakes
• Review Checklist
• References

Setup & Authorization

Add NSMotionUsageDescription to Info.plist explaining why the app accesses motion sensors.