How to use CMStepCounter

CMStepCounter

CMStepCounterクラスは歩数へのアクセスを提供する

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歩数の計測を開始する

- (void)startStepCountingUpdatesToQueue:(NSOperationQueue *)queue updateOn:(NSInteger)stepCounts withHandler:(CMStepUpdateHandler)handler

Code example

// Check step counting available
if ([CMStepCounter isStepCountingAvailable]) {
        __weak typeof(self) weakSelf = self;
        
    // Create step counter
        self.stepCounter = [[CMStepCounter alloc] init];

    // Start step counting
        [self.stepCounter startStepCountingUpdatesToQueue:[NSOperationQueue mainQueue]
                                                 updateOn:1
                                              withHandler:^(NSInteger numberOfSteps, NSDate *timestamp, NSError *error) {   
                                                  weakSelf.stepCountLabel.text = [@(numberOfSteps) stringValue];
                                              }];
    }

歩数の計測を停止する

- (void)stopStepCountingUpdates

期間を指定して歩数を取得する（過去７日間まで取得可能）

- (void)queryStepCountStartingFrom:(NSDate )start to:(NSDate )end toQueue:(NSOperationQueue *)queue withHandler:(CMStepQueryHandler)handler

Code Example

// Check step counting available
if ([CMStepCounter isStepCountingAvailable]) {
        __weak typeof(self) weakSelf = self;
        
        NSDate *now = [NSDate date];
        NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
        NSDateComponents *comps = [gregorian components:NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour fromDate:now];
        [comps setHour:0];
        NSDate *today = [gregorian dateFromComponents:comps];
        
        [self.stepCounter queryStepCountStartingFrom:today
                                                  to:now
                                             toQueue:[NSOperationQueue mainQueue]
                                         withHandler:^(NSInteger numberOfSteps, NSError *error) {
                                             NSLog(@"------------------------------------------");
                                             NSLog(@"%s : %d", __PRETTY_FUNCTION__, __LINE__);
                                             NSLog(@"numberOfSteps : %d", (int)numberOfSteps);
                                             NSLog(@"error : %@", error);
                                             
                                             weakSelf.totalStepsLabel.text = [@(numberOfSteps) stringValue];
                                         }];
    }