mapbox/mapbox-ios-sdk — pull request #493 by oooits72 (2014-09-04 09:24:49+00:00)
Title: User special variable for (not)initialised state detection

_mapScrollView can be not nil. We should use special variable for initialised state detection.

example:
```obj
- (void)viewDidLoad {
[super viewDidLoad];

self.mapView.tileSource = [[RMMBTilesSource alloc] initWithTileSetResource:@"map" ofType:@"mbtiles"];
self.mapView.zoom = 12;
... more initialisation
self.mapView.adjustTilesForRetinaDisplay = YES; // after that _mapScrollView != nil
...
```