一、搖一搖

直接監聽方法就可以

1.用戶開始搖晃手機

- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent*)event

2.搖一搖被打斷（電話）

- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent*)event

3.搖一搖結束

- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent*)event

二、計步器

1.導入<CoreMotion/CoreMotion.h>框架

2.初始化對象

self.counter=[[CMStepCounter alloc]init];

3.判斷計步器是否可用

if(![CMStepCounter isStepCountingAvailable]) {

NSLog(@"計步器不可用");

return;

}

4.開始計步

[self.counter startStepCountingUpdatesToQueue:[NSOperationQueue mainQueue]updateOn:5 withHandler:^(NSInteger ?numberOfSteps,NSDate *timestamp,NSError *error) {

if(error)return;

self.stepLabel.text= [NSStringstringWithFormat:@"您一共走了%ld步", numberOfSteps];

}];