超精准的iOS计步器实现代码

#import "viewcontroller.h"
#import <coremotion/coremotion.h>

@interface viewcontroller ()

@property (nonatomic, strong) cmstepcounter *conter;

@property (weak, nonatomic) iboutlet uilabel *steplabel;

@end

@implementation viewcontroller

- (void)viewdidload {
 [super viewdidload];

 // 1、判断计步器是否可用
 if (![cmstepcounter isstepcountingavailable]) {return;}

 // 2、开始计步
 [self.conter startstepcountingupdatestoqueue:[nsoperationqueue mainqueue] updateon:5 withhandler:^(nsinteger numberofsteps, nsdate * _nonnull timestamp, nserror * _nullable error) {

  self.steplabel.text = [nsstring stringwithformat:@"一共走了%ld步", numberofsteps];
 }];

}

- (cmstepcounter *)conter{
 if (_conter == nil) {
  _conter = [[cmstepcounter alloc] init];
 }
 return _conter;
}