Prompting permission for Motion & Fitness data

Question

I want users to be prompted as soon as app launches for permission to access Motion & Fitness data (CoreMotion).

Right now I'm trying to do a "dummy" query for the data to prompt the permission on a application:didFinishLaunchingWithOptions

CMMotionActivityManager *motionActivityManager=[[CMMotionActivityManager alloc]init];
    [motionActivityManager startActivityUpdatesToQueue:[NSOperationQueue mainQueue] withHandler:^(CMMotionActivity *activity) {
        NSLog(@"Dummy query to prompt permission from user");

    }];

But what happens is the app launches and it hangs on the splash screen — if I press home button then the app tries closing and THEN the permission prompt pops in.

Any thought how to accomplish this?

Answer 1

I researched on motion manager and tried to create a library for motion detection. From that, i got to know permission for motion detection will pop up when the below code will execute.

CMMotionActivityManager *motionActivityManager = [[CMMotionActivityManager alloc]init];
    [motionActivityManager startActivityUpdatesToQueue:[NSOperationQueue mainQueue] withHandler:^(CMMotionActivity *activity) {
        NSLog(@"Motion...%@",activity);
    }];

Hope this will help you. Thank you.