iOS7 RMMapView无法加载所有图块

Question

我正在使用MapBox SDK，我已经生成了我的.mbtiles文件。 但是当我使用它与RMMapView时，它只能加载一些它们。为什么不加载所有瓷砖？ 例如，zoomlevel 0中应该有16个tile，但我只能看到2个。

    - (void)viewDidLoad
{
    [super viewDidLoad];
    RMMBTilesSource *offlineSource = [[RMMBTilesSource alloc] initWithTileSetURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"nn" ofType:@"mbtiles"]]];
    RMMapView *mapView = [[RMMapView alloc] initWithFrame:self.view.bounds andTilesource:offlineSource];

    // default zoom
    mapView.zoom = 0;
    // hard code minimal zoom. Try to run in without it to see what happens.
    mapView.minZoom = 0;
    mapView.maxZoom = 3;
    // hide MapBox logo
    mapView.showLogoBug = NO;
    // hide bottom right "i" icon
    [mapView setHideAttribution:YES];

    mapView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    mapView.adjustTilesForRetinaDisplay = YES; // these tiles aren't designed specifically for retina, so make them legible

    [self.view addSubview:mapView];
    // Do any additional setup after loading the view, typically from a nib.
}

Answer 1

您是如何生成MBTiles文件的？您是否在其他客户端尝试过，例如上传到mapbox.com？您还可以在RMMBTilesSource中设置断点，以查看是否正在加载切片。