我找到了一个解决方案，如何在 openstreet 地图中映射气球我根据需要自定义 osmbonuspack 工作正常，但只显示一张地图。
如何在下面粘贴的这段代码中添加多个标记？
我的输出 URL 工作正常，只需告诉我如何在图像气泡中添加文本以及如何在地图中添加多个标记？
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;
}
}