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Editorial Team
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Asked: 2026-05-18T05:18:35+00:00

I’m setting my MKMapView region inside the viewWillAppear: so that the map displays the

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I’m setting my MKMapView region inside the viewWillAppear: so that the map displays the good region right as soon as the user sees it:

[mapView setRegion:region animated:NO];

The fist time I do it, I get the region trimmed like so:

alt text

Then from there on, when I set the exact same region, I get something like this:

alt text

The 2nd screenshot is what I want to get from the start. My guess is the first time I set the region, the mapview isn’t fully loaded or something along these lines. Any pointer of what I should do to fix this?

EDIT: This is probably related: adding an annotation to the mapView before a first call to viewDidAppear is made isn’t working either. The pinView just doesn’t show up. How can I make sure the map view is ready to be used within viewWillAppear?

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1 Answer

  1. Editorial Team

    I stumbled upong this thread that suggested to add a delay to the setRegion: call (if you require to call it within the viewWillAppear method anyway). Kinda silly, but it works. 

    - (void)viewWillAppear:(BOOL)animated {
    [self performSelector:@selector(centerMap:) withObject:nil afterDelay:0.01];
}

    I’m really curious as of what the mapView is missing to do the proper recentering without this delay.

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