Question

I am able to successfully show the user their current location on a MapView. However when I go to another view controller and come back to my mapview, I see a blue screen. Why?

This is my code:

- (void)viewWillAppear:(BOOL)animated {

    MyManager * myManager = [MyManager sharedInstance];

    //if coming back from another screen, lets load the coordinates
    if (myManager.centerOfMap) {
        NSLog(@"myManager.centerOfMap has a value:");
        self.centerOfMap = myManager.centerOfMap;
    } 


    CLLocationCoordinate2D zoomLocation;    
    zoomLocation = *(self.centerOfMap);

    MKCoordinateRegion viewRegion = MKCoordinateRegionMakeWithDistance(zoomLocation, 0.5*METERS_PER_MILE, 0.5*METERS_PER_MILE);
    MKCoordinateRegion adjustedRegion = [_mapView regionThatFits:viewRegion];                
    [_mapView setRegion:adjustedRegion animated:YES];      
}

Answer 1

A blue screen is often a sign that you’re point to (0,0) off the coast of Africa. Try printing out the coordinates of centerOfMap