Question

目前我正在使用

在OSMdroid底图上加载一个tile数据层

final MapTileProviderBasic tileProvider = 
    new MapTileProviderBasic(getApplicationContext());
final ITileSource tileSource = 
    new XYTileSource("MyCustomTiles", null, 1, 16, 256, ".png",
            "http://a.url.to/custom-tiles/");
tileProvider.setTileSource(tileSource);
final TilesOverlay tilesOverlay = 
    new TilesOverlay(tileProvider, this.getBaseContext());
tilesOverlay.setLoadingBackgroundColor(Color.TRANSPARENT);
osmv.getOverlays().add(tilesOverlay);

是否可以通过BaseMap在彼此之上渲染多个数据层，或者我一次只能显示一个数据层？我找到了this example for GoogleMaps，但是一次没有找到一些处理multipe tileSources的示例OSMdroid代码。

Answer 1

是的，当然可以。你只需要在地图上添加另一个TilesOverlay。从列表的最低索引（= 0）开始，连续绘制叠加层（也称为tilesOverlays）。这是一个例子：

//create the first tilesOverlay
final MapTileProviderBasic tileProvider = new MapTileProviderBasic(getApplicationContext());
final ITileSource tileSource = new XYTileSource("MyCustomTiles", null, 1, 16, 256, ".png",
        "http://a.url.to/custom-tiles/");
tileProvider.setTileSource(tileSource);
final TilesOverlay tilesOverlay = new TilesOverlay(tileProvider, this.getBaseContext());
tilesOverlay.setLoadingBackgroundColor(Color.TRANSPARENT);

//create the second one
final MapTileProviderBasic anotherTileProvider = new MapTileProviderBasic(getApplicationContext());
final ITileSource anotherTileSource = new XYTileSource("MyCustomTiles", null, 1, 16, 256, ".png",
        "http://a.secondurl.to/custom-tiles/");
anotherTileProvider.setTileSource(anotherTileSource);
final TilesOverlay secondTilesOverlay = new TilesOverlay(anotherTileProvider, this.getBaseContext());
secondTilesOverlay.setLoadingBackgroundColor(Color.TRANSPARENT);

// add the first tilesOverlay to the list
osmv.getOverlays().add(tilesOverlay);

// add the second tilesOverlay to the list
osmv.getOverlays().add(secondTilesOverlay);

osmdroid上的多个图块层

1 个答案: