如何在點擊任意點時在谷歌地圖中顯示地址？

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如何顯示在地圖應用程序彈出消息，這樣的形象http://imgur.com/FubOy 如何在點擊任意點時在谷歌地圖中顯示地址？

我犯了一個gogle地圖應用，但沒有表現出任何地址，這是我的代碼如何顯示任意點的地址信息時，點擊該位置像在這個圖像？

import java.util.List; 

import android.graphics.drawable.Drawable; 
import android.os.Bundle; 

import com.google.android.maps.GeoPoint; 
import com.google.android.maps.MapActivity; 
import com.google.android.maps.MapController; 
import com.google.android.maps.MapView; 
import com.google.android.maps.Overlay; 
import com.google.android.maps.OverlayItem; 

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

    // Displaying Zooming controls 
    MapView mapView = (MapView) findViewById(R.id.mapView); 
    mapView.setBuiltInZoomControls(true); 

    /** 
    * Changing Map Type 
    * */ 
    // mapView.setSatellite(true); // Satellite View 
    // mapView.setStreetView(true); // Street View 
    // mapView.setTraffic(true); // Traffic view 

    /** 
    * showing location by Latitude and Longitude 
    * */   
    MapController mc = mapView.getController(); 
    double lat = Double.parseDouble("48.85827758964043"); 
    double lon = Double.parseDouble("2.294543981552124"); 
    GeoPoint geoPoint = new GeoPoint((int)(lat * 1E6), (int)(lon * 1E6)); 
    mc.animateTo(geoPoint); 
    mc.setZoom(15); 
    mapView.invalidate(); 


    /** 
    * Placing Marker 
    * */ 
    List<Overlay> mapOverlays = mapView.getOverlays(); 
    Drawable drawable = this.getResources().getDrawable(R.drawable.mark_red); 
    AddItemizedOverlay itemizedOverlay = 
     new AddItemizedOverlay(drawable, this); 


    OverlayItem overlayitem = new OverlayItem(geoPoint, "Hello", "Sample Overlay 
    item"); 

    itemizedOverlay.addOverlay(overlayitem); 
    mapOverlays.add(itemizedOverlay); 

} 

@Override 
protected boolean isRouteDisplayed() { 
    return false; 
} 
} 


     import java.util.ArrayList; 

import android.content.Context; 
import android.graphics.drawable.Drawable; 
import android.util.Log; 
import android.view.MotionEvent; 
import android.widget.Toast; 

import com.google.android.maps.GeoPoint; 
import com.google.android.maps.ItemizedOverlay; 
import com.google.android.maps.MapView; 
import com.google.android.maps.OverlayItem; 

public class AddItemizedOverlay extends ItemizedOverlay<OverlayItem> { 

    private ArrayList<OverlayItem> mapOverlays = new ArrayList<OverlayItem>(); 

    private Context context; 

    public AddItemizedOverlay(Drawable defaultMarker) { 
     super(boundCenterBottom(defaultMarker)); 
    } 

    public AddItemizedOverlay(Drawable defaultMarker, Context context) { 
     this(defaultMarker); 
     this.context = context; 
    } 

    @Override 
    protected OverlayItem createItem(int i) { 
     return mapOverlays.get(i); 
    } 

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

    @Override 
    protected boolean onTap(int index) { 
     Log.e("Tap", "Tap Performed"); 
     return true; 
    } 

    public void addOverlay(OverlayItem overlay) { 
     mapOverlays.add(overlay); 
     this.populate(); 
    } 

    /** 
    * Getting Latitude and Longitude on Touch event 
    * **/ 
    @Override 
    public boolean onTouchEvent(MotionEvent event, MapView mapView) 
    { 

     if (event.getAction() == 1) {     
      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; 
    } 

}

來源

2012-11-15 Hayya ANAM

package com.pocketjourney.view; 

import java.util.ArrayList; 

import com.hws.AmpleHarvest.MoreInformation; 
import android.content.Context; 
import android.content.Intent; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Paint; 
import android.graphics.Paint.Style; 
import android.graphics.Point; 
import android.graphics.RectF; 

import android.util.Log; 
import android.view.MotionEvent; 
import android.view.SurfaceHolder; 
import android.widget.Toast; 

import com.google.android.maps.GeoPoint; 
import com.google.android.maps.MapView; 
import com.google.android.maps.Overlay; 
import com.hws.AmpleHarvest.AmpleHarvestActivity; 
import com.hws.AmpleHarvest.PantryLocation; 
import com.hws.AmpleHarvest.R; 


public class MapLocationOverlay extends Overlay { 

    private boolean isNameAddHold=true; 

    private Bitmap bitmap,bitCross,bitMoreInformation; 
    int testX,testY,count=0; 
    int infoWindowOffsetX,infoWindowOffsetY; 
    public String name,address,argName,argAddress,argid; 
    // Store these as global instances so we don't keep reloading every time 
    private Bitmap bubbleIcon, shadowIcon; 

    private MapLocationViewer mapLocationViewer; 
    double toLat, toLng; 

    private Paint innerPaint, borderPaint, textPaint; 
    private boolean isRemovePriorPopup=false; 
    private boolean temp=true,first=true, firstDraw = true; 
    public boolean tempDefaule=true; 
    public MoreInformation myMoreInformation; 
    public PantryLocation location; 

    // The currently selected Map Location...if any is selected. This tracks whether an information 
    // window should be displayed & where...i.e. whether a user 'clicked' on a known map location 
    private PantryLocation selectedMapLocation; 

    public MapLocationOverlay(MapLocationViewer mapLocationViewer,PantryLocation arglocation) { 

     this.mapLocationViewer = mapLocationViewer; 
     location=arglocation; 
     bubbleIcon = BitmapFactory.decodeResource(mapLocationViewer.getResources(),R.drawable.bubble); 
     shadowIcon = BitmapFactory.decodeResource(mapLocationViewer.getResources(),R.drawable.shadow); 
     bitmap = BitmapFactory.decodeResource(mapLocationViewer.getResources(),R.drawable.infowindow); 
     bitCross = BitmapFactory.decodeResource(mapLocationViewer.getResources(),R.drawable.crass); 
     bitMoreInformation = BitmapFactory.decodeResource(mapLocationViewer.getResources(),R.drawable.more_informations_new 
       ); 

    } 

    @Override 
    public boolean onTouchEvent(MotionEvent e, MapView mapView) { 
     // TODO Auto-generated method stub 
     if (e.getAction() == 0) 
     { 
      this.tempDefaule=false; 
     } 
     if (e.getAction() == 1) 
     { 
      this.tempDefaule=false; 
     } 
     if (e.getAction() == 2) 
     { 
      this.tempDefaule=false; 
     } 
     return super.onTouchEvent(e, mapView); 

    } 







    @Override 
    public boolean onTap(GeoPoint p, MapView mapView) { 
     //this.tempDefaule=false; 
     // Store whether prior popup was displayed so we can call invalidate() & remove it if necessary. 

     // Next test whether a new popup should be displayed 

      selectedMapLocation = getHitMapLocation(mapView,p); 


      mapView.invalidate(); 

//  if (selectedMapLocation != null || isRemovePriorPopup==true) { 
//   
//   mapView.invalidate(); 
//  }  

     // Lastly return true if we handled this onTap() 
     return selectedMapLocation != null; 
    } 

    @Override 
    public void draw(Canvas canvas, MapView mapView, boolean shadow) { 

     drawMapLocations(canvas, mapView, shadow); 
     //this.tempDefaule=false; 
     drawInfoWindow(canvas, mapView, shadow); 
     //this.tempDefaule=false; 
     } 

    /** 
    * Test whether an information balloon should be displayed or a prior balloon hidden. 
    */ 
    private PantryLocation getHitMapLocation(MapView mapView, GeoPoint tapPoint) { 

     // Track which MapLocation was hit...if any 
     PantryLocation hitMapLocation = null; 

     RectF hitTestRecr = new RectF(); 
     Point screenCoords = new Point(); 
     ArrayList<PantryLocation> iterator =mapLocationViewer.getMapLocations(); 
     for(int i=0;i<iterator.size();i++) {  
      PantryLocation testLocation = iterator.get(i); 

      // Translate the MapLocation's lat/long coordinates to screen coordinates 
      mapView.getProjection().toPixels(testLocation.getPoint(), screenCoords); 

      // Create a 'hit' testing Rectangle w/size and coordinates of our icon 
      // Set the 'hit' testing Rectangle with the size and coordinates of our on screen icon 
      hitTestRecr.set(-bubbleIcon.getWidth()/2,-bubbleIcon.getHeight(),bubbleIcon.getWidth()/2,0); 
      hitTestRecr.offset(screenCoords.x,screenCoords.y); 

      // Finally test for a match between our 'hit' Rectangle and the location clicked by the user 
      mapView.getProjection().toPixels(tapPoint, screenCoords); 
      //hitMapLocation = testLocation; 
      if (hitTestRecr.contains(screenCoords.x,screenCoords.y)) { 
       hitMapLocation = testLocation; 
       first = true; 
       isNameAddHold = true; 
       break; 
      } 
     } 
     testX=(int)screenCoords.x; 
     testY=(int)screenCoords.y; 
     // Lastly clear the newMouseSelection as it has now been processed 
     tapPoint = null; 
     if(hitMapLocation==null && selectedMapLocation!=null) 
     return selectedMapLocation; 

     return hitMapLocation; 

    } 

    private void drawMapLocations(Canvas canvas, MapView mapView, boolean shadow) { 
     int i=0;count++; 
     ArrayList<PantryLocation> iterator =mapLocationViewer.getMapLocations(); 
     Point screenCoords = new Point(); 
     for(i=0;i<iterator.size();i++) {  
      PantryLocation location = iterator.get(i); 
      mapView.getProjection().toPixels(location.getPoint(), screenCoords); 
      //mapView.getController().setCenter(location.getPoint()); 
      if (shadow) { 
       // Only offset the shadow in the y-axis as the shadow is angled so the base is at x=0; 
       canvas.drawBitmap(shadowIcon, screenCoords.x, screenCoords.y - shadowIcon.getHeight(),null); 
      } else { 
       canvas.drawBitmap(bubbleIcon, screenCoords.x - bubbleIcon.getWidth()/2, screenCoords.y - bubbleIcon.getHeight(),null); 
      } 

     } 
//  if(i==iterator.size()){ 
//   this.tempDefaule=false;} 
if(tempDefaule==true) 
{ 

      PantryLocation location1 = this.location; 
      //mapView.getProjection().toPixels(location.getPoint(), screenCoords); 
      Point screenCoord = new Point(); 
      mapView.getController().setCenter(location1.getPoint()); 
      mapView.getController().setZoom(15); 
     // tempDefaule=false; 
       //mapView.getController().setCenter(location.getPoint()); 

     } 

      //tempDefaule=false;  
}   //mapView.getProjection().toPixels(location.getPoint(), screenCoord); 
      //canvas.drawBitmap(bubbleIcon, screenCoord.x - bubbleIcon.getWidth()/2, screenCoord.y - bubbleIcon.getHeight(),null); 
      //mapView.invalidate(); 


    private void drawInfoWindow(Canvas canvas, MapView mapView, boolean shadow) { 
     //this.tempDefaule=false; 
     if (selectedMapLocation != null) { 
      if (shadow) { 
       // Skip painting a shadow in this tutorial 
      } else { 
       // First determine the screen coordinates of the selected MapLocation 
       isRemovePriorPopup=true; 
       Point selDestinationOffset = new Point(); 

//    if(first){ 
//     //mapView.getController().setCenter(selectedMapLocation.getPoint()); 
//     first = false; 
//     //mapView.getController().setZoom(15); 
//    } 
       mapView.getProjection().toPixels(selectedMapLocation.getPoint(), selDestinationOffset); 

       // Setup the info window with the right size & location 
       int INFO_WINDOW_WIDTH = 125; 
       int INFO_WINDOW_HEIGHT = 25; 
       RectF infoWindowRect = new RectF(0,0,100,20); 
       RectF closeRect = new RectF(0,0,20,20); 
       infoWindowOffsetX = selDestinationOffset.x-INFO_WINDOW_WIDTH/2; 
       infoWindowOffsetY = selDestinationOffset.y-INFO_WINDOW_HEIGHT-bubbleIcon.getHeight(); 
       infoWindowRect.offset(infoWindowOffsetX+95,infoWindowOffsetY-45); 
       closeRect.offset(infoWindowOffsetX+160,infoWindowOffsetY-90); 
// 
//    int TEXT_OFFSET_X = 10; 
//     int TEXT_OFFSET_Y = 15; 
//     
       Paint myPaintBlack=new Paint(); 
        Paint myPaintWhite=new Paint(); 

        myPaintWhite.setARGB(255, 255, 255, 255); 


       // Draw inner info window 
       canvas.drawRoundRect(infoWindowRect, 5, 5, getInnerPaint()); 

       // Draw border for info window 
       canvas.drawRoundRect(infoWindowRect, 5, 5, getBorderPaint()); 

       // Draw the MapLocation's name 


       myPaintBlack.setColor(Color.BLACK); 
       myPaintBlack.setTextSize(20); 

//    canvas.drawText(selectedMapLocation.getAddress(),infoWindowOffsetX+TEXT_OFFSET_X,infoWindowOffsetY+TEXT_OFFSET_Y,getTextPaint()); 
       canvas.drawBitmap(bitmap, infoWindowOffsetX-50, infoWindowOffsetY-100,getInnerPaint()); 
       //canvas.drawBitmap(bitmap1, infoWindowOffsetX-45, infoWindowOffsetY-80,getInnerPaint()); 
       if(isNameAddHold) 
       { 
       argid=selectedMapLocation.getID(); 
       argName=selectedMapLocation.getName(); 
       name=selectedMapLocation.getName(); 
       toLat = selectedMapLocation.getLatitude(); 
       toLng = selectedMapLocation.getLongitude(); 
       if(name.length()>18) 
       name=selectedMapLocation.getName().substring(0,18)+".."; 
       argAddress=selectedMapLocation.getAddress(); 
       address=selectedMapLocation.getAddress(); 
       if(address.length()>30) 
       address=selectedMapLocation.getAddress().substring(0,30)+".."; 
       } 
       canvas.drawText(name,infoWindowOffsetX-45,infoWindowOffsetY-70,myPaintBlack); 
       myPaintBlack.setTextSize(13); 
       canvas.drawText(address,infoWindowOffsetX-45,infoWindowOffsetY-55,myPaintBlack); 

      // Draw inner info window 
       canvas.drawRoundRect(infoWindowRect, 5, 5, getInnerPaint()); 

       // Draw border for info window 
       canvas.drawRoundRect(infoWindowRect, 5, 5, getBorderPaint()); 

       //CloseRect 
//    canvas.drawRoundRect(closeRect, 5, 5, getInnerPaint()); 
//    canvas.drawRoundRect(closeRect, 5, 5, getBorderPaint()); 

       // Draw the MapLocation's name 
       myPaintBlack.setColor(Color.CYAN); 
       myPaintBlack.setTextSize(11); 
       //canvas.drawText("Click for more info..",infoWindowOffsetX+105,infoWindowOffsetY-33,myPaintBlack); 
       canvas.drawBitmap(bitMoreInformation, infoWindowOffsetX+95, infoWindowOffsetY-45,getInnerPaint()); 
       //canvas.drawBitmap(bitCross, infoWindowOffsetX+160, infoWindowOffsetY-90,getInnerPaint()); 

      } 
     } 
     if(isRemovePriorPopup) 
     { 
     if(((testX>(infoWindowOffsetX+95)&&testX<(infoWindowOffsetX+195)))&&(testY>(infoWindowOffsetY-45)&&testY<(infoWindowOffsetY-25))) 
      { 
      if(temp){ 
       try 
       { 
        temp=false; 
        isNameAddHold=false; 
       isRemovePriorPopup=false; 
       Context context=mapLocationViewer.cn; 
       Toast.makeText(context, "Loading...", Toast.LENGTH_SHORT).show(); 
       Intent intent=new Intent(context, MoreInformation.class); 
       intent.putExtra("Id",argid); 
       intent.putExtra("Name",argName); 
       intent.putExtra("Address",argAddress); 
       intent.putExtra("Latitude",toLat); 
       intent.putExtra("Longitude",toLng); 

       context.startActivity(intent); 

       } 
       catch (Exception ex) 
       { 
        Log.d("Redirected Error :", ex.getMessage()); 
       } 
     //canvas.drawText("This is for Testing",testX,testY,myPaintBlack); 
      }} 
      else if(((testX>(infoWindowOffsetX+160)&&testX<(infoWindowOffsetX+180)))&&(testY>(infoWindowOffsetY-90)&&testY<(infoWindowOffsetY-70))) 
      { 

       if(isRemovePriorPopup) 
       { 
       isRemovePriorPopup=false;     
       selectedMapLocation=null; 
       draw(canvas, mapView, shadow); 
       // mapLocationViewer.setDZoom(); 
       } 

      } 
     } 
    } 

    public Paint getInnerPaint() { 
     if (innerPaint == null) { 
      innerPaint = new Paint(); 
      innerPaint.setARGB(225, 75, 75, 75); //gray 
      innerPaint.setAntiAlias(true); 
     } 
     return innerPaint; 
    } 

    public Paint getBorderPaint() { 
     if (borderPaint == null) { 
      borderPaint = new Paint(); 
      borderPaint.setARGB(255, 255, 255, 255); 
      borderPaint.setAntiAlias(true); 
      borderPaint.setStyle(Style.STROKE); 
      borderPaint.setStrokeWidth(2); 
     } 
     return borderPaint; 
    } 

    public Paint getTextPaint() { 
     if (textPaint == null) { 
      textPaint = new Paint(); 
      textPaint.setARGB(255, 255, 255, 255); 
      textPaint.setAntiAlias(true); 
     } 
     return textPaint; 
    } 


}

來源

2012-11-15 09:08:17 Omarj

這是完整的代碼？ –

是的，但不要複製和過去採取你所需要的。 – Omarj

我可以幫我在我的代碼如何添加地址可能代碼？ –

如何在點擊任意點時在谷歌地圖中顯示地址？

回答

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