지도상의 안드로이드 방향

Question

Google지도에서 길 찾기 앱을 만들고 있습니다. 하지만 내가 응용 프로그램을 실행할 때 문제가 발생했습니다 11-23 09:39:16.111: E/MapActivity(572): Couldn't get connection factory client지도에 소스 코드와 소스 코드가 표시되지 않습니다. 너 나 좀 도와 줄 수있어!

홈페이지 소스 코드 :

public class MainActivity extends MapActivity { 
private MapView mapView; 

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

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.main); 
    mapView = (MapView)findViewById(R.id.mapview); 
    //Example data 
    double latitudeFrom = 50.06469036372934; 
    double longitudeFrom = 19.944788217544556; 
    double latitudeTo = 50.06400165088368; 
    double longitudeTo = 19.920390844345093; 

    GeoPoint srcGeoPoint = 
     new GeoPoint((int)(latitudeFrom * 1E6), (int)(longitudeFrom * 1E6)); 
    GeoPoint destGeoPoint = 
     new GeoPoint((int)(latitudeTo * 1E6), (int)(longitudeTo * 1E6)); 

    drawPath(srcGeoPoint, destGeoPoint, mapView); 

    mapView.getController().animateTo(srcGeoPoint); 
    mapView.getController().setZoom(15); 
} 

private void drawPath(GeoPoint src, GeoPoint dest, MapView mapView) { 
    String strUrl = "http://maps.google.com/maps?f=d&hl=en"; 
    //From 
    strUrl += "saddr=" + 
      (src.getLatitudeE6()/1.0E6) + 
      "," + 
      (src.getLongitudeE6()/1.0E6); 
    //To 
    strUrl += "&daddr=" + 
      (dest.getLatitudeE6()/1.0E6) + 
      "," + 
      (dest.getLongitudeE6()/1.0E6); 
    //Walk attribute (for walk path) 
    strUrl += "&dirflg=w"; 
    //File format 
    strUrl += "&output=kml"; 

    try { 
     //Parse KML 
     URL url = new URL(strUrl.toString()); 

     SAXParserFactory saxFactory = SAXParserFactory.newInstance(); 
     SAXParser parser = saxFactory.newSAXParser(); 
     XMLReader reader = parser.getXMLReader(); 

     KMLHandler kmlHandler = new KMLHandler(); 
     reader.setContentHandler(kmlHandler); 

     InputSource inputSource = new InputSource(url.openStream()); 
     reader.parse(inputSource); 

     String path = kmlHandler.getPathCoordinates(); 
     //Draw path 
     if(path != null) { 
      RouteOverlay routeOverlay = new RouteOverlay(); 

      String pairs[] = path.split(" "); 

      for (String pair : pairs) { 
       String coordinates[] = pair.split(","); 
       GeoPoint geoPoint = new GeoPoint(
         (int) (Double.parseDouble(coordinates[1]) * 1E6), 
         (int) (Double.parseDouble(coordinates[0]) * 1E6)); 
       routeOverlay.addGeoPoint(geoPoint); 
      } 

      mapView.getOverlays().add(routeOverlay); 
     } 
    } catch (Exception e) { 
     Log.w("RoutePath", e.toString()); 
    } 
    } 
} 

KMLHandler :

public class KMLHandler extends DefaultHandler { 
private boolean inGeometryCollection = false; 
private boolean inCoordinates = false; 
private String pathCoordinates; 

public String getPathCoordinates() { return pathCoordinates; } 

@Override 
public void characters(char[] ch, int start, int length) 
     throws SAXException { 
    if(inGeometryCollection && inCoordinates) 
     pathCoordinates = new String(ch, start, length); 
} 

@Override 
public void endElement(String uri, String localName, String qName) 
     throws SAXException { 
    if(localName.equals("GeometryCollection")) inGeometryCollection = false; 
    else if (localName.equals("coordinates")) inCoordinates = false; 
} 

@Override 
public void startElement(String uri, String localName, String qName, 
     Attributes attributes) throws SAXException { 
    if(localName.equals("GeometryCollection")) inGeometryCollection = true; 
    else if (localName.equals("coordinates")) inCoordinates = true; 
} 
} 

RouteOverlay :

public class RouteOverlay extends Overlay { 
private ArrayList<GeoPoint> geoPoints; 
private int mRadius = 5; 

public RouteOverlay() { 
    geoPoints = new ArrayList<GeoPoint>(); 
} 

public void addGeoPoint(GeoPoint gp) { 
    geoPoints.add(gp); 
} 

@Override 
public boolean draw(Canvas canvas, MapView mapView, boolean shadow, 
     long when) { 
    if (shadow == false) { 
     Projection projection = mapView.getProjection(); 
     Paint paint = new Paint(); 
     paint.setAntiAlias(true); 

     GeoPoint geoPointFrom = null; 
     GeoPoint geoPointTo = null; 
     Point pointFrom = new Point(); 
     Point pointTo = new Point(); 

     //Route 
     for (GeoPoint geoPoint : geoPoints) { 
      if(geoPointFrom != null) { 
       geoPointTo = geoPoint; 

       projection.toPixels(geoPointFrom, pointFrom); 
       projection.toPixels(geoPointTo, pointTo); 

       paint.setColor(Color.GREEN); 
       paint.setStrokeWidth(5); 
       paint.setAlpha(120); 

       canvas.drawLine(pointFrom.x, pointFrom.y, 
           pointTo.x, pointTo.y, 
           paint); 

       geoPointFrom = geoPointTo; 
      } else { 
       geoPointFrom = geoPoint; 
      } 
     } 

     //Start point 
     paint.setColor(Color.BLUE); 
     projection.toPixels(geoPoints.get(0), pointFrom); 
     RectF ovalStart = new RectF(pointFrom.x - mRadius, 
            pointFrom.y - mRadius, 
            pointFrom.x + mRadius, 
            pointFrom.y + mRadius); 
     canvas.drawOval(ovalStart, paint); 

     //Stop point 
     paint.setColor(Color.RED); 
     RectF ovalStop = new RectF(pointTo.x - mRadius, 
            pointTo.y - mRadius, 
            pointTo.x + mRadius, 
            pointTo.y + mRadius); 
     canvas.drawOval(ovalStop, paint); 
    } 

    return super.draw(canvas, mapView, shadow, when); 
} 

} 

Answer 1

MapActivity에서 오버레이 항목을 알고있는 방식이므로 ItemizedOverlay가 필요하다고 생각합니다. 경로는 오버레이입니다. 이 질문을 참조하십시오 : Android draw route on a Mapview with twoo POI-s