Code Quality Rank: L3
Programming language: Objective-C
License: MIT License
Tags: Hardware     Location    
Latest version: v1.0.2

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Simple library to detect motion for iOS by arturdev .

Based on location updates and acceleration.


iOS > 6.0

Compatible with iOS 9

Works on all iOS devices (i.e. not need M7 chip)

This demo project also demonstrates how to use this library to relaunch the app from killed state.


Copy SOMotionDetector folder to your project.

Link CoreMotion.framework, CoreLocation.framework.

Import "SOMotionDetector.h" file and set SOMotionDetector's callbacks

#import "SOMotionDetector.h


[SOMotionDetector sharedInstance].motionTypeChangedBlock = ^(SOMotionType motionType) {

[SOMotionDetector sharedInstance].locationChangedBlock = ^(CLLocation *location) {

[SOMotionDetector sharedInstance].accelerationChangedBlock = ^(CMAcceleration acceleration) {

If you need to know when location updates were automatically paused due to your app running in the background...

[SOMotionDetector sharedInstance].locationWasPausedBlock = ^(BOOL changed) {


To Support iOS > 8.0 you must add in your info.plist file one of the following keys: NSLocationAlwaysUsageDescription NSLocationWhenInUseUsageDescription

To enable background location updates in iOS > 9.0 you must set allowsBackgroundLocationUpdates to YES

    [SOLocationManager sharedInstance].allowsBackgroundLocationUpdates = YES;

You are done!

Now to start motion detection just call

[[SOMotionDetector sharedInstance] startDetection];

To stop detection call

[[SOMotionDetector sharedInstance] stopDetection];

To start step counter call

    [[SOStepDetector sharedInstance] startDetectionWithUpdateBlock:^(NSError *error) {

Detecting motion types

typedef enum
  MotionTypeNotMoving = 1,
} SOMotionType;


 * Set this parameter to YES if you want to use M7 chip to detect more exact motion type. By default is No.
 * Set this parameter before calling startDetection method.
 * Available only on devices that have M7 chip. At this time only the iPhone 5S, the iPad Air and iPad mini with retina display have the M7 coprocessor.
@property (nonatomic) BOOL useM7IfAvailable;

 *@param speed  The minimum speed value less than which will be considered as not moving state
- (void)setMinimumSpeed:(CGFloat)speed;

 *@param speed  The maximum speed value more than which will be considered as running state
- (void)setMaximumWalkingSpeed:(CGFloat)speed;

 *@param speed  The maximum speed value more than which will be considered as automotive state
- (void)setMaximumRunningSpeed:(CGFloat)speed;

 *@param acceleration  The minimum acceleration value less than which will be considered as non shaking state
- (void)setMinimumRunningAcceleration:(CGFloat)acceleration;

Installation with CocoaPods

CocoaPods is a dependency manager for Objective-C, which automates and simplifies the process of using 3rd-party libraries installation in your projects.


pod "SOMotionDetector"

LICENSE SOMotionDetector is under MIT License (see LICENSE file)

*Note that all licence references and agreements mentioned in the SOMotionDetector README section above are relevant to that project's source code only.