IOS acceleration sensor (accelerometer)

Introduction

The acceleration sensor detects changes in the position of the device based on the three directions of x, y and z.

The acceleration sensor can be used to know the current position of the device relative to the ground.

The following example code needs to be run on a real device and will not work on the simulator.

Instance steps

1. Create a simple view application

2. Add three labels to ViewController.xib and create an ibOutlets: xlable, ylabel and zlabel

3. As shown below, update ViewController.h

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UIAccelerometerDelegate>
{
    IBOutlet UILabel *xlabel;
    IBOutlet UILabel *ylabel;
    IBOutlet UILabel *zlabel;

}
@end

4. As shown below, update ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    [[UIAccelerometer sharedAccelerometer]setDelegate:self];
    //Do any additional setup after loading the view,typically from a nib
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:
  (UIAcceleration *)acceleration{
    [xlabel setText:[NSString stringWithFormat:@"%f",acceleration.x]];
    [ylabel setText:[NSString stringWithFormat:@"%f",acceleration.y]];
    [zlabel setText:[NSString stringWithFormat:@"%f",acceleration.z]];
}

@end

Output

When we run the application on an iPhone device, the output we get is as follows.