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问题描述
所以，我终于得到了osmdroid与本地目录的工作，但我想，当他们在本地缺少从Mapnik的装载瓷砖。我不知道我错过了什么。
我的实现如下：
私人MapView类MapView类= NULL;
@覆盖
公共无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.osm_map）; 图形页面=（图形页面）findViewById（R.id.mapview）;
mapView.setBuiltInZoomControls（真）;
mapView.setMultiTouchControls（真）; MapController mapController = mapView.getController（）;
mapController.setZoom（5）;
的GeoPoint点2 =新的GeoPoint（55708545，10006348）;
mapController.setCenter（点2）; // TODO保存到SD
AssetManager assetManager = getAssets（）;
InputStream为;
字符串文件名=test.zip;
字符串路径= Environment.getExternalStorageDirectory（）+文件分割符+文件名; // TODO路径将其保存到
尝试{
是= assetManager.open（文件名）; FileOutputStream中FO =新的FileOutputStream（路径）; 字节[] B =新的字节[1024];
INT长;
而（（长度= is.read（二））！= - 1）{
fo.write（B，0，长度）;
}
fo.flush（）;
fo.close（）;
is.close（）;
}赶上（IOException异常五）{
e.printStackTrace（）;
} 文件tileFile =新的文件（路径）;
IArchiveFile []档案=新IArchiveFile [1];
档案[0] = ArchiveFileFactory.getArchiveFile（tileFile）; CustomTileSource customTiles =新CustomTileSource（Mapnik的，NULL，0，24，256，png格式）; //名字应该匹配是压缩文件夹的名称 MapTileModuleProviderBase [] =供应商新MapTileModuleProviderBase [2];
供应商[0] =新MapTileFileArchiveProvider（新SimpleRegisterReceiver（getApplicationContext（）），customTiles，档案）;
供应商[1] =新MapTileDownloader（TileSourceFactory.MAPNIK）;
mapView.setUseDataConnection（假）;
mapView.setTileSource（TileSourceFactory.MAPNIK）; MapTileProviderArray tileProvider =新MapTileProviderArray（customTiles，空，供应商）;
TilesOverlay tilesOverlay =新TilesOverlay（tileProvider，getApplicationContext（））;
调用MapView.getOverlays（）加（tilesOverlay）。
mapView.invalidate（）;
}
和
公共类CustomTileSource扩展BitmapTileSourceBase { 公共CustomTileSource（字符串aName，串aResourceId，
INT aZoomMinLevel，诠释aZoomMaxLevel，INT aTileSizePixels，
字符串aImageFilenameEnding）{
超（aName，aResourceId，aZoomMinLevel，aZoomMaxLevel，aTileSizePixels，
aImageFilenameEnding）;
}}
解决方案
好了，我终于找到了解决办法。它相当复杂，长，但它的工作原理：D
现在我OsmDroidFragment内（是在地图片段）我有以下几点：
@覆盖
公共查看onCreateView（LayoutInflater充气器，容器的ViewGroup，
捆绑savedInstanceState）{
RelativeLayout的观点=（RelativeLayout的）inflater.inflate（R.layout.osm_map，集装箱，FALSE）;
RelativeLayout的mapContainer =（RelativeLayout的）view.findViewById（R.id.osm_map_parent）; mMapView =新OsmCustomMapView（getActivity（），256，10，13）; //我为了限制变焦已经有了一个自定义实现，你可以用普通osmdroid的MapView
的LayoutParams PARAMS =新RelativeLayout.LayoutParams（LayoutParams.MATCH_PARENT，LayoutParams.MATCH_PARENT）;
mMapView.setLayoutParams（PARAMS）;
mapContainer.addView（mMapView）; mMapView.setBuiltInZoomControls（真）;
mMapView.setMultiTouchControls（假）; //捏缩放功能不好的osmdroid MapController mapController = mMapView.getController（）;
mapController.setZoom（11）; //必须setCenter之前设置变焦，否则我们得到错误的位置
GeoPoint的中心=新的GeoPoint（0,0）;
mapController.setCenter（中心）; //保存压缩到SD
AssetManager assetManager = getActivity（）getAssets（）。
InputStream为;
字符串文件名=map.zip; // zip文件就在于资产根
字符串路径= this.getActivity（）getExternalFilesDir（空）+文件分割符+文件名。 //路径我省SD来 文件tileFile =新的文件（路径）;
如果（！tileFile.exists（））{
尝试{
是= assetManager.open（文件名）; FileOutputStream中FO =新的FileOutputStream（路径）; 字节[] B =新的字节[1024];
INT长;
而（（长度= is.read（二））！= - 1）{
fo.write（B，0，长度）;
} fo.flush（）;
fo.close（）;
is.close（）;
}赶上（IOException异常五）{
e.printStackTrace（）;
}
} IArchiveFile []档案=新IArchiveFile [1];
档案[0] = ArchiveFileFactory.getArchiveFile（tileFile）; //扩展BitmapTileSourceBase，没有别的简单实现
CustomTileSource customTiles =新CustomTileSource（Maverik，空，10，14，256，png格式）; // Maverik是拉链里面的文件夹的名称（所以拉链是map.zip和里面是一个叫做Maverik文件夹） MapTileModuleProviderBase [] =供应商新MapTileModuleProviderBase [2];
供应商[0] =新MapTileFileArchiveProvider（新SimpleRegisterReceiver（getActivity（）getApplicationContext（）），customTiles，档案）; //这个人是当地的地砖（邮政编码等）
供应商[1] =新MapTileDownloader（TileSourceFactory.MAPNIK）; // Mapnik的网页源瓷砖 mMapView.setUseDataConnection（真）; MapTileProviderArray tileProvider =新MapTileProviderArray（customTiles，
新SimpleRegisterReceiver（getActivity（）getApplicationContext（）。），供应商）;
TilesOverlay tilesOverlay =新TilesOverlay（tileProvider，getActivity（）getApplicationContext（））;
tilesOverlay.setLoadingBackgroundColor（Color.TRANSPARENT）; //这将确保当地砖的瓷砖invisble是透明的，所以我们可以看到网络的瓷砖，透明有一个小的性能下降。 。mMapView.getOverlays（）加（tilesOverlay）; mMapView.invalidate（）; 返回视图。
}
So I've finally gotten osmdroid working with a local directory but I'd like to load tiles from Mapnik when they are missing locally. I'm not sure what I'm missing.
My implementation is as follows:
private MapView mapView = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.osm_map);
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
mapView.setMultiTouchControls(true);
MapController mapController = mapView.getController();
mapController.setZoom(5);
GeoPoint point2 = new GeoPoint(55708545, 10006348);
mapController.setCenter(point2);
//TODO Save to SD
AssetManager assetManager = getAssets();
InputStream is;
String fileName = "test.zip";
String path = Environment.getExternalStorageDirectory() + File.separator + fileName; //TODO Path to save it to
try {
is = assetManager.open(fileName);
FileOutputStream fo = new FileOutputStream(path);
byte[] b = new byte[1024];
int length;
while((length = is.read(b)) != -1) {
fo.write(b, 0, length);
}
fo.flush();
fo.close();
is.close();
} catch (IOException e) {
e.printStackTrace();
}
File tileFile = new File(path);
IArchiveFile[] archives = new IArchiveFile[1];
archives[0] = ArchiveFileFactory.getArchiveFile(tileFile);
CustomTileSource customTiles = new CustomTileSource("Mapnik", null, 0, 24, 256, ".png"); // the name should match the name of the folder that is zipped
MapTileModuleProviderBase[] providers = new MapTileModuleProviderBase[2];
providers[0] = new MapTileFileArchiveProvider(new SimpleRegisterReceiver(getApplicationContext()), customTiles, archives);
providers[1] = new MapTileDownloader(TileSourceFactory.MAPNIK);
mapView.setUseDataConnection(false);
mapView.setTileSource(TileSourceFactory.MAPNIK);
MapTileProviderArray tileProvider = new MapTileProviderArray(customTiles, null, providers);
TilesOverlay tilesOverlay = new TilesOverlay(tileProvider, getApplicationContext());
mapView.getOverlays().add(tilesOverlay);
mapView.invalidate();
}
AND
public class CustomTileSource extends BitmapTileSourceBase {
public CustomTileSource(String aName, string aResourceId,
int aZoomMinLevel, int aZoomMaxLevel, int aTileSizePixels,
String aImageFilenameEnding) {
super(aName, aResourceId, aZoomMinLevel, aZoomMaxLevel, aTileSizePixels,
aImageFilenameEnding);
}
}
解决方案
Okay so I've finally found a solution. Its quite complex and long but it works :D
Now inside my OsmDroidFragment (yes map in fragment) I have following:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
RelativeLayout view = (RelativeLayout) inflater.inflate(R.layout.osm_map, container, false);
RelativeLayout mapContainer = (RelativeLayout) view.findViewById(R.id.osm_map_parent);
mMapView = new OsmCustomMapView(getActivity(), 256, 10, 13); // I've made a custom implementation in order to limit zoom, you can just use regular osmdroid mapview
LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
mMapView.setLayoutParams(params);
mapContainer.addView(mMapView);
mMapView.setBuiltInZoomControls(true);
mMapView.setMultiTouchControls(false); // pinch zoom works bad on osmdroid
MapController mapController = mMapView.getController();
mapController.setZoom(11); // must set zoom before setCenter, else we get the wrong position
GeoPoint center = new GeoPoint(0,0);
mapController.setCenter(center);
// save zip to sd
AssetManager assetManager = getActivity().getAssets();
InputStream is;
String fileName = "map.zip"; // the zip file lies in assets root
String path = this.getActivity().getExternalFilesDir(null) + File.separator + fileName; // the path I save SD to
File tileFile = new File(path);
if(!tileFile.exists()) {
try {
is = assetManager.open(fileName);
FileOutputStream fo = new FileOutputStream(path);
byte[] b = new byte[1024];
int length;
while((length = is.read(b)) != -1) {
fo.write(b, 0, length);
}
fo.flush();
fo.close();
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
IArchiveFile[] archives = new IArchiveFile[1];
archives[0] = ArchiveFileFactory.getArchiveFile(tileFile);
// Simple implementation that extends BitmapTileSourceBase and nothing else
CustomTileSource customTiles = new CustomTileSource("Maverik", null, 10, 14, 256, ".png"); // Maverik is the name of the folder inside the zip (so zip is map.zip and inside it is a folder called Maverik)
MapTileModuleProviderBase[] providers = new MapTileModuleProviderBase[2];
providers[0] = new MapTileFileArchiveProvider(new SimpleRegisterReceiver(getActivity().getApplicationContext()), customTiles, archives); // this one is for local tiles (zip etc.)
providers[1] = new MapTileDownloader(TileSourceFactory.MAPNIK); // MAPNIK web tile source
mMapView.setUseDataConnection(true);
MapTileProviderArray tileProvider = new MapTileProviderArray(customTiles,
new SimpleRegisterReceiver(getActivity().getApplicationContext()), providers);
TilesOverlay tilesOverlay = new TilesOverlay(tileProvider, getActivity().getApplicationContext());
tilesOverlay.setLoadingBackgroundColor(Color.TRANSPARENT); // this makes sure that the invisble tiles of local tiles are transparent so we can see tiles from web, transparent have a minor performance decline.
mMapView.getOverlays().add(tilesOverlay);
mMapView.invalidate();
return view;
}
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