iOS How to access historical M7 data?

[declan0872]

Hi all,

I need to access the historical data that the motion coprocessor (M7) has collected for my app and display it.

But I'm not sure of how to query the chip in oder to do so. I know that I have to use the CMStepCounter library but don't know how to access it exactly.

Anyone know how I would do this or what should I be looking up?


Thanks a million!

 

[moonman239]

I'm not all too familiar with accessing M7 data, but you can make your app store data as the app receives it using Core Data.

 

[DennisBlah]

Do you mean something like this?
Example for all steps made of today:

    NSOperationQueue *stepQueue = [[NSOperationQueue alloc] init]; //Init setpQueue
    stepQueue.maxConcurrentOperationCount = 1;

    CMStepCounter *myStepCounter = [[CMStepCounter alloc] init]; //Init stepcounter

    NSDate *tillDateTime = [NSDate date]; //init date till ( NOW )
 
    NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar];
    NSDateComponents *components = [calendar
            components:NSYearCalendarUnit
            | NSMonthCalendarUnit
            | NSDayCalendarUnit
            fromDate:tillDateTime];

   NSDate *fromDateTime = [calendar dateFromComponents:components]; //init date from

    //Get the steps between the 2 dates
    [myStepCounter stepCounter queryStepCountStartingFrom:fromDateTime
            to:tillDateTime
            toQueue:stepQueue
            withHandler:^(NSInteger stepAmount, NSError *error) {
                if (error)
                    //105 == not authorized
                    NSLog(@"%@", [error localizedDescription]);
                else
                    NSLog(@"Steps between datetimes : %i", stepAmount);
            }
    ];