android mapview custom tile

I need to add a custom base layer to to my map view. My understanding is that the map tiles are exactly the same as the google tiles. They are st开发者_C百科atic files served up in the following format: http:///tilecache///.png

For example, the http:///tilecache/6/16/26.png is the gulf coast between florida alabama and mississippi.

How do I create an overlay with the tiles?

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osmdroid (as recommended above) is cool but quite huge. Some time ago I decided to use http://sourceforge.net/projects/libwlocate/ instead - it contains functionalities for showing/scrolling/zooming maps like osmdroid but you can choose to use OSM, Google Maps or Google satellite view.

An example how to use it can be found in http://libwlocate.git.sourceforge.net/git/gitweb.cgi?p=libwlocate/libwlocate;a=blob;f=master/android/LocDemo/src/com/vwp/locdemo/LocDemo.java;h=5e2134fb7d197258f5f4f6f9021d2fa9ad9f2d9a;hb=HEAD

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I would recommend using osmdroid. You can extend OnlineTileSourecBase.

public class YourTileSource extends OnlineTileSourceBase implements IStyledTileSource<Integer> {

public YourTileSource (String aName, string aResourceId,
    int aZoomMinLevel, int aZoomMaxLevel, int aTileSizePixels,
    String aImageFilenameEnding, String aBaseUrl) {
    super(aName, aResourceId, aZoomMinLevel, aZoomMaxLevel, aTileSizePixels,
            aImageFilenameEnding, aBaseUrl);
}

public void setStyle(Integer style) {
    // TODO Auto-generated method stub
}

public void setStyle(String style) {
    // TODO Auto-generated method stub
}

public Integer getStyle() {
    // TODO Auto-generated method stub
    return null;
}

@Override
public String getTileURLString(MapTile aTile) {
    return getBaseUrl() + "/" + aTile.getX() + "/" + aTile.getY() + "/" + aTile.getZoomLevel() + ".png";
}

}

Then add your tile source to your mapview:

TileSourceFactory.addTileSource(new YourTileSource ("YourTileSource", null, 1, 20, 256, ".png", "http:///tilecache/"));
mapView.setTileSource(TileSourceFactory.getTileSource("YourTileSource"));

Your mapView needs to be an org.osmdroid.views.MapView for that to work. OSMdroid classes should replace all of the google maps classes.

Start by downloading the osmdroid-android-3.0.8.jar file, add it to your libs folder in your project, and then add it to the project through right click > Properties > Java Build Path > Libraries > Add Jars, and then find it in the libs folder. Post more questions if you have them, I have a lot of experience with osmdroid.

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For newer versions of OSMDroid, the aResourceId parameter to the constructor has been removed and the last parameter, aBaseUrl, is a String[]

public YourTileSource (String aName, 
    int aZoomMinLevel, 
    int aZoomMaxLevel, 
    int aTileSizePixels,
    String aImageFilenameEnding, 
    String[] aBaseUrl) {

    super(aName, 
          aZoomMinLevel, 
          aZoomMaxLevel, 
          aTileSizePixels, 
          aImageFilenameEnding, 
          aBaseUrl);
}