如何在android中的osm貼圖中添加更多標記

Question

我發現了一個解決方案，如何在openstreet貼圖中繪製氣球我根據自己的需要自定義osmbonuspack工作正常，但僅顯示一張貼圖。

如何在下面粘貼的代碼中添加多個然後一個標記？

我的輸出網址工作正常，告訴我如何在圖像氣泡中添加文本，以及如何在地圖中添加更多然後一個標記？

import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 
import android.widget.Toast; 
import com.osmbonuspackdemo.R; 

public class NavigationActivity extends Activity 
{ 
    protected MapView map; 
    protected ItemizedOverlayWithBubble<ExtendedOverlayItem> markerOverlays; 
    protected ExtendedOverlayItem markerStart; 

    @Override public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     map = (MapView) findViewById(R.id.map); 
     map.setBuiltInZoomControls(true); 
     map.setMultiTouchControls(true); 
     MapController mapController = map.getController(); 

     GeoPoint myPoint1 = new GeoPoint(24.893379000000000000, 67.028060900000010000); 
     mapController.setZoom(9); 
     mapController.setCenter(myPoint1); 


     final ArrayList<ExtendedOverlayItem> waypointsItems = new ArrayList<ExtendedOverlayItem>(); 
     markerOverlays = new ItemizedOverlayWithBubble<ExtendedOverlayItem>(this, waypointsItems, map); 
     map.getOverlays().add(markerOverlays); 
     markerStart = putMarkerItem(null, myPoint1, "Start", R.drawable.marker_a, R.drawable.rogger_rabbit); 
    } 

    public ExtendedOverlayItem putMarkerItem(ExtendedOverlayItem item, GeoPoint p, String title, int markerResId, int iconResId) { 
      Drawable marker = getResources().getDrawable(markerResId); 
      ExtendedOverlayItem overlayItem = new ExtendedOverlayItem(title, "", p); 

      overlayItem.setMarker(marker); 
      overlayItem.setImage(getResources().getDrawable(iconResId)); 
      markerOverlays.addItem(overlayItem); 
      map.invalidate(); 

      return overlayItem; 
    } 

} 

import org.osmdroid.util.GeoPoint; 
import org.osmdroid.views.overlay.OverlayItem; 
import android.graphics.drawable.Drawable; 

public class ExtendedOverlayItem extends OverlayItem { 

    private String mTitle, mDescription; // now, they are modifiable 
    private String mSubDescription; //a third field that can be displayed in the infowindow, on a third line 
    private Drawable mImage; //that will be shown in the infowindow. 
    //private GeoPoint mGeoPoint //unfortunately, this is not so simple... 

    public ExtendedOverlayItem(String aTitle, String aDescription, GeoPoint aGeoPoint) { 
     super(aTitle, aDescription, aGeoPoint); 
     mTitle = aTitle; 
     mDescription = aDescription; 
     mSubDescription = null; 
     mImage = null; 
    } 

    public void setTitle(String aTitle){ 
     mTitle = aTitle; 
    } 

    public void setDescription(String aDescription){ 
     mDescription = aDescription; 
    } 

    public void setSubDescription(String aSubDescription){ 
     mSubDescription = aSubDescription; 
    } 

    public void setImage(Drawable anImage){ 
     mImage = anImage; 
    } 

    public String getTitle() { 
     return mTitle; 
    } 

    public String getDescription() { 
     return mDescription; 
    } 

    public String getSubDescription() { 
     return mSubDescription; 
    } 

    public Drawable getImage() { 
     return mImage; 
    } 
} 


public class InfoWindow { 

    protected View mView; 
    protected boolean mIsVisible = false; 
    protected MapView mMapView; 

    public InfoWindow(int layoutResId, MapView mapView) { 
     mMapView = mapView; 
     mIsVisible = false; 
     ViewGroup parent=(ViewGroup)mapView.getParent(); 
     Context ctx = mapView.getContext(); 
     LayoutInflater inflater = (LayoutInflater)ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     /* 
     if (layoutResId == 0) 
      layoutResId = R.layout.bonuspack_bubble; 
     */ 
     mView = inflater.inflate(layoutResId, parent, false); 
     mView.setOnClickListener(new View.OnClickListener() { 
      public void onClick(View v) { 
       close(); 
      } 
     }); 
    } 

    public View getView() { 
     return(mView); 
    } 

    public void open(GeoPoint position, int offsetX, int offsetY) { 
     MapView.LayoutParams lp=new MapView.LayoutParams(
      MapView.LayoutParams.WRAP_CONTENT, 
      MapView.LayoutParams.WRAP_CONTENT, 
      position, MapView.LayoutParams.BOTTOM_CENTER, 
      offsetX, offsetY); 
     close(); 
     mMapView.addView(mView, lp); 
     mIsVisible = true; 
    } 

    public void close() { 
     if (mIsVisible) { 
      mIsVisible = false; 
      ((ViewGroup)mView.getParent()).removeView(mView); 
     } 
    } 

    public void setPosition(GeoPoint p, int offsetX, int offsetY){ 
     if (mIsVisible){ 
      open(p, offsetX, offsetY); 
     } 
    } 
} 

import org.osmdroid.util.GeoPoint; 
import org.osmdroid.views.MapView; 
import org.osmdroid.views.overlay.ItemizedIconOverlay; 
import org.osmdroid.views.overlay.OverlayItem; 
import android.content.Context; 
import android.graphics.drawable.Drawable; 
import android.view.View; 
import android.widget.ImageView; 
import android.widget.TextView; 

public class ItemizedOverlayWithBubble<Item extends OverlayItem> extends 
ItemizedIconOverlay<Item> { 
    protected InfoWindow mBubble; //only one for all items of this overlay => one at 
a time 
private Context context; 
    protected OverlayItem mItemWithBubble; //the item currently showing the bubble. 
    Null if none. 
    final int mTitleId, mDescriptionId, mSubDescriptionId, mImageId; 

    public ItemizedOverlayWithBubble(final Context context, final List<Item> aList, 
    final MapView mapView) { 
     super(context, aList, new OnItemGestureListener<Item>() { 
      @Override public boolean onItemSingleTapUp(final int index, final 
    OverlayItem item) { 
       return false; 
      } 
      @Override public boolean onItemLongPress(final int index, final 
    OverlayItem item) { 
       return false; 
      } 
     }); 

     String packageName = context.getClass().getPackage().getName(); 
     int layoutId = 
context.getResources().getIdentifier("layout/bonuspack_bubble" , null, packageName); 
     mTitleId = context.getResources().getIdentifier("id/bubble_title", null, 
packageName); 
     mDescriptionId = 
context.getResources().getIdentifier("id/bubble_description", null, packageName); 
     mSubDescriptionId = 
context.getResources().getIdentifier("id/bubble_subdescription", null, packageName); 
     mImageId = context.getResources().getIdentifier("id/bubble_image", null, 
packageName); 
     mBubble = new InfoWindow(layoutId, mapView); 
     mItemWithBubble = null; 
    } 

    public void showBubbleOnItem(int index, MapView mapView) { 
     ExtendedOverlayItem eItem = (ExtendedOverlayItem)(getItem(index)); 
     mItemWithBubble = eItem; 
     GeoPoint position = eItem.getPoint(); 
     //update the content of the bubble, based on the item tapped: 
     View view = mBubble.getView(); 
     ((TextView)view.findViewById(mTitleId /*R.id.title* 
/)).setText(eItem.getTitle()); 
     ((TextView)view.findViewById(mDescriptionId /*R.id.description* 
    /)).setText(eItem.getDescription()); 

     //handle mSubDescription, hidding or showing the text view: 
     TextView subDescText = (TextView)view.findViewById(mSubDescriptionId); 
     String subDesc = eItem.getSubDescription(); 
     if (subDesc != null && !("".equals(subDesc))){ 
      subDescText.setText(subDesc); 
      subDescText.setVisibility(View.VISIBLE); 
     } else { 
      subDescText.setVisibility(View.GONE); 
     } 

     ImageView imageView = (ImageView)view.findViewById(mImageId 
    /*R.id.image*/); 
     Drawable image = eItem.getImage(); 
     if (image != null){ 
      imageView.setBackgroundDrawable(image); 
      imageView.setVisibility(View.VISIBLE); 
     } else 
      imageView.setVisibility(View.GONE); 

     int offsetY = -20; 
     Drawable marker = eItem.getMarker(OverlayItem.ITEM_STATE_FOCUSED_MASK); 
     if (marker != null) 
      offsetY = -marker.getIntrinsicHeight()*3/4; 
     mBubble.open(position, 0, offsetY); 
     mapView.getController().animateTo(position); 
    } 

    @Override protected boolean onSingleTapUpHelper(final int index, final Item item, 
    final MapView mapView) { 
     showBubbleOnItem(index, mapView); 
     return true; 
    } 

    /** @return the item currenty showing the bubble, or null if none. */ 
    public OverlayItem getBubbledItem(){ 
     //TODO: if user taps the bubble to close it, mItemWithBubble is not set 
to null... 
     return mItemWithBubble; 
    } 

    @Override public boolean removeItem(Item item){ 
     boolean result = super.removeItem(item); 
     if (mItemWithBubble == item){ 
       mBubble.close(); 
       mItemWithBubble = null; 
     } 
     return result; 
    } 

    @Override public void removeAllItems(){ 
     super.removeAllItems(); 
     mBubble.close(); 
     mItemWithBubble = null; 
    } 

    @Override 
    public boolean onTouchEvent(MotionEvent event, MapView mapView) 
    { 

     if (event.getAction() == 0) {     
      GeoPoint geopoint = (GeoPoint) mapView.getProjection().fromPixels(
       (int) event.getX(), 
       (int) event.getY()); 
      // latitude 
      double lat = geopoint.getLatitudeE6()/1E6; 
      // longitude 
      double lon = geopoint.getLongitudeE6()/1E6; 
      Toast.makeText(context, "Lat: " + lat + ", Lon: "+lon, 
    Toast.LENGTH_SHORT).show(); 
     }        
     return false; 
    } 
} 

Answer 1

使用逐項疊加像這樣（填充方法是最重要的）

public class CustomOverLay extends ItemizedOverlay<OverlayItem> { 

private ArrayList<OverlayItem> overlayItems = new ArrayList<OverlayItem>(); 
private MapView mapView; 

public CustomOverLay(Drawable drawable, MapView mapView) { 
    super(boundCenterBottom(drawable)); 
    this.mapView = mapView; 
} 

public void addOverlayItem(OverlayItem item) { 
    overlayItems.add(item); 
    populate(); 
} 

@Override 
protected OverlayItem createItem(int index) { 
    return overlayItems.get(index); 
} 

@Override 
public int size() { 
    return overlayItems.size(); 
} 

@Override 
protected boolean onTap(int index) { 
    return true; 
} 

}

，一旦你這樣做遵循代碼波紋管，加OverlayItem您要數標記放置在地圖

List<Overlays> mapOverlays = mapView.getOverlays(); 
CustomOverLay overlays = new CustomOverLay(drawable, mapView); 

GeoPoint p = new GeoPoint(getLat(util.getLatitude()), getLong(util.getLongitude())); 
OverlayItem overlayItem = new OverlayItem(p, "", ""); 
overlays.addOverlayItem(overlayItem); 


GeoPoint p = new GeoPoint(getLat(util.getLatitude()), getLong(util.getLongitude())); 
OverlayItem overlayItem = new OverlayItem(p, "", ""); 
overlays.addOverlayItem(overlayItem); 

..... so on 

mapOverlays.add(overlays); 

歡呼聲