Flutter_map: map not fit perfect screen on ios

[gimox]

Map view not fit flexible tag on ios device < X.

look at grey border.
It work on iphone X.

return new Padding(
      padding: new EdgeInsets.all(0.0),
      child: new Column(
        children: [
          new Flexible(
            child: new FlutterMap(
              options: new MapOptions(
                  center: new LatLng(39.213695, 9.121050),
                  interactive: false,
                  minZoom: 12.0,
                  maxZoom: 19.0,
                  zoom: 16.5,
                  onTap: (latLng) {
                    print('tap callback  $latLng');
                  },
                  onPositionChanged: (MapPosition mapPos) {
                    print("pos changed $mapPos");
                  }),
              layers: [
                new TileLayerOptions(
                    offlineMode: false,
                    urlTemplate:
                        "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
                    //  urlTemplate: "assets/offlinemaps/cagliari/{z}/{x}/{y}.png"),
                    subdomains: ['a', 'b', 'c']),
                new MarkerLayerOptions(markers: markers)
              ],
            ),
          ),
        ],
      ),
    );

[johnpryan]

Can you double check that you are using the latest version? (0.1.4)

[gimox]

I m using 0.1.4

[johnpryan]

Were you able to figure out what was causing this?

[gimox]

I m investigating,no results for now. Flexible container fit correct all the space (as you see in the pick has gray background). Maps appear to be not in the center.

[gimox]

ok some news... this is related to option.zoom.

this code is working

 options: new MapOptions(
                 ...
                  maxZoom: 17.0,
                  zoom: 14.0,
                  ....
                 maxZoom: 18.0,
                  zoom: 17.0,

this code generate the problem

...
 maxZoom: 17.0,
 zoom: 16.5,
...
maxZoom: 17.0,
zoom: 15.5,
...
maxZoom: 17.0,
zoom: 14.5,

it seems that the problem appear when zoom is not int!!!

[johnpryan]

gotcha. I would vote to re-open this now that this is a reproducible bug

[jovanovski]

@gimox Thanks, saved me! zoom and maxZoom must be rounded doubles, with no decimal points.

[benoitskipr]

gotcha. I would vote to re-open this now that this is a reproducible bug

@johnpryan yes, it should be reopened, it still happens as of today, and the zoom property still is a double, and should definitely be a int

[benoitskipr]

mmmh, the gray bars also happen when using fitBounds() probably because it does not round the calculated zoom

[benoitskipr]

@johnpryan this ticket should be reopened, it happens all the time with fitbounds

[pakutoma]

I have the same issue in Android, and I solved by:
src/layer/tile_layer.dart, Line 194

var tileZoom = _clampZoom(zoom.round().toDouble());

to

var tileZoom = _clampZoom(zoom.floorToDouble());

I want to send PR, but I can't know that this solution works perfectly or not.

Thanks.