Is the Current Location/Compass heading button available in the iOS sdk?

问题

I am working on a sample map kit app for iOS. I have everything working and a toolbar button to toggle the MKUserTrackingMode. This may seem like a silly question but I have searched all the options in the IB and looked in the documentation, and I can't find any button options like the one for the current location/compass heading used in the iOS Maps app. Is that particular button available to developers?

回答1:

You need to create a MKUserTrackingBarButtonItem and pass it the MKMapview in the constructor, then add that button item to the navigation menu (or where ever it is your button should be).

- (void)viewDidLoad
{
    [super viewDidLoad];    
    MKUserTrackingBarButtonItem *buttonItem = [[MKUserTrackingBarButtonItem alloc] initWithMapView:self.map];
    self.navigationItem.rightBarButtonItem = buttonItem;
}

回答2:

Maybe I am misunderstanding your question but it sounds like you want to be setting the userTrackingMode property of your MKMapView to theMKUserTrackingMode.MKUserTrackingModeFollowWithHeading.

来源：https://stackoverflow.com/questions/9876157/is-the-current-location-compass-heading-button-available-in-the-ios-sdk