3
を除去して、最終的には「場所への道順を取得」Androidのオーバーレイ上書き/何を私がすることができます私は基本的にあなたの現在位置にを取得し、ユーザーはオーバーレイアイコンを選択することができ、非常に基本的なアプリケーションに取り組んでいる他の
現在地を表示してください。ユーザーに現在地と可能なすべての目的地を表示してください。 問題は、私の基本的な実装方法です。 これまで行ってきたことは、2つの静的な場所これはユーザーの場所と静的な場所に変更されますが、テストでは静的な2つの場所があります）。ただし、このルートが表示されているときは、現在の位置とマーカーのその他のオーバーレイが消えます。ここで
は私のjavaはどんな助けをファイルです
MapViewActivity
public class MapViewActivity extends MapActivity implements LocationListener {
private static final String TAG = null;
LocationManager locman;
Location loc;
private MapView map;
private MapController controller;
public MapOverLay MyOverlay;
MyLocationOverlay overlay;
LinearLayout linearLayout;
MapView mapView;
private Road mRoad;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
initMapView();
initMyLocation();
//route();
/* *********************
* There seems to be a problem in here that when route() is run
* the HelloItemizedArray disappears and the route from the 2 static locations
* is shown , While this wouldn't be so bad for the application as there's no need
* to show any other stations when the user has picked one ... the problem is that the
* marker for the current location disappears or the user might need to pick a different station
* and i would like them to be able to do so without having to do the onCreate() again.
* **********************
*/
}
private void initMapView() {
map = (MapView) findViewById(R.id.mapview);
controller = map.getController();
map.setSatellite(false);
map.setBuiltInZoomControls(true);
List<Overlay> mapOverlays = map.getOverlays();
Drawable drawable = this.getResources().getDrawable(R.drawable.icon);
HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(drawable,this);
GeoPoint point = new GeoPoint((int)(53.34675984552593 * 1E6), (int)(-6.258945465087891 * 1E6));
// O'Conell Bridge
OverlayItem overlayitem = new OverlayItem(point, "O'Connell Bridge", "");
GeoPoint point2 = new GeoPoint((int)(53.33842 * 1E6), (int)(-6.25365 * 1E6));
//53.33842; -6.25365 -- Stephens green
OverlayItem overlayitem2 = new OverlayItem(point2, "Stephens green", "");
itemizedoverlay.addOverlay(overlayitem);
itemizedoverlay.addOverlay(overlayitem2);
mapOverlays.add(itemizedoverlay);
}
private void initMyLocation() {
final MyLocationOverlay overlay = new MyLocationOverlay(this, map);
overlay.enableMyLocation();
overlay.enableCompass(); // does not work in emulator
overlay.runOnFirstFix(new Runnable() {
public void run() {
// Zoom in to current location
controller.setZoom(15);
controller.animateTo(overlay.getMyLocation());
}
});
map.getOverlays().add(overlay);
}
public void route() {
double fromLat = 53.34675984552593, fromLon = -6.258945465087891, toLat = 53.33842, toLon = -6.25365;
String url = RoadProvider
.getUrl(fromLat, fromLon, toLat, toLon);
InputStream is = getConnection(url);
mRoad = RoadProvider.getRoute(is);
mHandler.sendEmptyMessage(0);
}
Handler mHandler = new Handler() {
public void handleMessage(android.os.Message msg) {
TextView textView = (TextView) findViewById(R.id.description);
textView.setText(mRoad.mName + " " + mRoad.mDescription);
MapOverLay mapOverlay = new MapOverLay(mRoad, mapView);
List<Overlay> listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
mapView.invalidate();
};
};
private InputStream getConnection(String url) {
InputStream is = null;
try {
URLConnection conn = new URL(url).openConnection();
is = conn.getInputStream();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return is;
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
public void onLocationChanged(Location location) {
controller.animateTo(overlay.getMyLocation());
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
HelloItemizedOverlay.java
public class HelloItemizedOverlay extends ItemizedOverlay<OverlayItem>
{
private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
private Context mContext;
public HelloItemizedOverlay(Drawable defaultMarker, Context context)
{
super(boundCenterBottom(defaultMarker));
mContext = context;
}
public void addOverlay(OverlayItem overlay)
{
mOverlays.add(overlay);
populate();
}
@Override
protected OverlayItem createItem(int i)
{
return mOverlays.get(i);
}
@Override
public int size()
{
return mOverlays.size();
}
@Override
protected boolean onTap(int index)
{
OverlayItem item = mOverlays.get(index);
AlertDialog.Builder dialog = new AlertDialog.Builder(mContext);
dialog.setTitle(item.getTitle());
dialog.setIcon(R.drawable.petrol);
dialog.setMessage(item.getSnippet());
dialog.setPositiveButton("Ok", new AlertDialog.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Implement the route to this location from this LISTENER
}
});
dialog.setNegativeButton("cancel", null);
dialog.show();
return true;
}
}
をいただければ幸いですMapOverLay.java
class MapOverLay extends com.google.android.maps.Overlay {
Road mRoad;
ArrayList<GeoPoint> mPoints;
public MapOverLay(Road road, MapView mv) {
mRoad = road;
if (road.mRoute.length > 0) {
mPoints = new ArrayList<GeoPoint>();
for (int i = 0; i < road.mRoute.length; i++) {
mPoints.add(new GeoPoint((int) (road.mRoute[i][1] * 1000000),
(int) (road.mRoute[i][0] * 1000000)));
}
int moveToLat = (mPoints.get(0).getLatitudeE6() + (mPoints.get(
mPoints.size() - 1).getLatitudeE6() - mPoints.get(0)
.getLatitudeE6())/2);
int moveToLong = (mPoints.get(0).getLongitudeE6() + (mPoints.get(
mPoints.size() - 1).getLongitudeE6() - mPoints.get(0)
.getLongitudeE6())/2);
GeoPoint moveTo = new GeoPoint(moveToLat, moveToLong);
MapController mapController = mv.getController();
mapController.animateTo(moveTo);
mapController.setZoom(15);
}
}
@Override
public boolean draw(Canvas canvas, MapView mv, boolean shadow, long when) {
super.draw(canvas, mv, shadow);
drawPath(mv, canvas);
return true;
}
public void drawPath(MapView mv, Canvas canvas) {
int x1 = -1, y1 = -1, x2 = -1, y2 = -1;
Paint paint = new Paint();
paint.setColor(Color.GREEN);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(3);
for (int i = 0; i < mPoints.size(); i++) {
Point point = new Point();
mv.getProjection().toPixels(mPoints.get(i), point);
x2 = point.x;
y2 = point.y;
if (i > 0) {
canvas.drawLine(x1, y1, x2, y2, paint);
}
x1 = x2;
y1 = y2;
}
}
}
ヘルプヒントやアドバイスは本当にありがとうございます ありがとうございます。