地圖地點點擊保存該位置到Android Listview？

Question

我在Android程序中顯示Google地圖。當我點擊地圖中的一個地方時，如何將地點保存到Android Listview。

通過這個我正在查找位置在地圖中前進

package com.commonsware.android.nooer; 

import java.io.IOException; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.Locale; 

import android.app.AlertDialog; 
import android.app.Dialog; 
import android.content.DialogInterface; 
import android.content.DialogInterface.OnCancelListener; 
import android.content.DialogInterface.OnClickListener; 
import android.graphics.Point; 
import android.graphics.drawable.Drawable; 
import android.location.Address; 
import android.location.Geocoder; 
import android.os.Bundle; 
import android.view.MotionEvent; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Toast; 

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.MyLocationOverlay; 
import com.google.android.maps.OverlayItem; 

public class SampleMpas extends MapActivity { 

MapView mapView; 

MapController mapController; 

GeoPoint mgeoPoint; 

Drawable marker; 

MyLocationOverlay mLocationOverlay; 

MotionEvent e; 
public void changeMap(String area) 
{ 
MapController mc=mapView.getController(); 
GeoPoint myLocation=null; 
double lat = 0; 
double lng = 0; 
try 
{ 

Geocoder g = new Geocoder(this, Locale.getDefault()); 

java.util.List<android.location.Address> result=g.getFromLocationName(area, 1); 
if(result.size()>0){ 

Toast.makeText(SampleMpas.this, "country: " + String.valueOf(result.get(0).getCountryName()), Toast.LENGTH_SHORT).show(); 
lat = result.get(0).getLatitude(); 
lng = result.get(0).getLongitude(); 

}    
else{ 
Toast.makeText(SampleMpas.this, "record not found", Toast.LENGTH_SHORT).show(); 
return; 
} 
} 
catch(IOException io) 
{ 
Toast.makeText(SampleMpas.this, "Connection Error", Toast.LENGTH_SHORT).show(); 
} 
myLocation = new GeoPoint(
(int) (lat * 1E6), 
(int) (lng * 1E6)); 
Drawable drawable = this.getResources().getDrawable(R.drawable.icon); 
mc.animateTo(myLocation); 
mc.setZoom(15); 
mapView.invalidate(); 
} 

@Override 
protected void onCreate(Bundle icicle) { 

    // TODO Auto-generated method stub 
    super.onCreate(icicle); 
    setContentView(R.layout.main); 

    Button btnSearch=(Button) findViewById(R.id.btnSearch); 
    btnSearch.setOnClickListener(new View.OnClickListener() { 

      public void onClick(View v) { 
     EditText txtSearch=(EditText)findViewById(R.id.txtMapSearch); 
     String area=txtSearch.getText().toString(); 
     Toast.makeText(SampleMpas.this, "Click-" + String.valueOf(area), Toast.LENGTH_SHORT).show(); 
     SampleMpas.this.changeMap(area); 

        } 

     }); 

    mapView = (MapView) findViewById(R.id.map); 

    mapController = mapView.getController(); 

    mapView.setBuiltInZoomControls(true); 
    marker = getResources().getDrawable(R.drawable.marker); 

    marker.setBounds(0, 0, marker.getIntrinsicWidth(), marker 
      .getIntrinsicHeight()); 

    mapView.getOverlays().add(new MapOverlay(marker)); 


    mLocationOverlay = new MyLocationOverlay(this, mapView); 

    mapView.getOverlays().add(mLocationOverlay); 

} 

@Override 
protected Dialog onCreateDialog(int id) { 

    // TODO Auto-generated method stub 

    switch (id) { 
     case 0: 
      return new AlertDialog.Builder(this).setTitle("Are You Want save this place As?").setIcon(
        R.drawable.icon).setPositiveButton("Favorite", 
        new OnClickListener() { 

         public void onClick(DialogInterface dialog , int which) { 

          // TODO Auto-generated method stub 

         } 
        }).setCancelable(true).setNegativeButton("Cancel", 
        new OnClickListener() { 

         public void onClick(DialogInterface dialog , int which) { 

          // TODO Auto-generated method stub 

         } 
        }).setCancelable(true).setNeutralButton("Business", new OnClickListener() { 

         public void onClick(DialogInterface dialog, int which) { 
          // TODO Auto-generated method stub 

         } 
        }) 

      .setOnCancelListener(new OnCancelListener() { 

       public void onCancel(DialogInterface dialog) { 

        // TODO Auto-generated method stub 
        Toast.makeText(getApplicationContext(), "Dismiss", 
          Toast.LENGTH_SHORT).show(); 
       } 

      }).create(); 


     default: 
      break; 
    } 
    return null; 
     } 



@Override 
protected boolean isRouteDisplayed() { 

    // TODO Auto-generated method stub 
    return false; 
} 


Point scrPoint; 


private GeoPoint getPoint(double lat , double lon) { 

    return (new GeoPoint((int) (lat * 1E6), (int) (lon * 1E6))); 
} 


class MapOverlay extends 
     com.google.android.maps.ItemizedOverlay<OverlayItem> { 

    List<OverlayItem> ListofGeopoints = new ArrayList<OverlayItem>(); 


    public MapOverlay(Drawable defaultMarker) { 

     super(defaultMarker); 
     double lat = 0; 
     double lang = 0; 
     ListofGeopoints.add(new OverlayItem(getPoint(lat, lang), 
       "IN", "India")); 
     populate(); 

    } 

    @Override 
    protected boolean onTap(int index) { 

    switch (index) { 
      case 0: 
       Toast.makeText(getApplicationContext(), "GeoLocation : 0", 
         Toast.LENGTH_LONG).show(); 
       showDialog(0); 
      break; 
     } 

     return true; 
    } 


    String add = ""; 

    List<Address> add_List = new ArrayList<Address>(); 


    private void getAddress() { 

     /* add_List = ReverseGeocode 
       .getFromLocation(35.594227, -105.223618, 2); 
*/ 
    } 

    @Override 
    protected OverlayItem createItem(int i) { 
     return (ListofGeopoints.get(i)); 
    } 
    @Override 
    public int size() { 
     return ListofGeopoints.size(); 
    } 
} 
} 

感謝。

Answer 1

您可以通過

@Override 
public boolean onTap(GeoPoint p , MapView mapView) 

得到觸摸位置的地理點寫從覆蓋類派生的類和重寫中的onTap（）方法。然後你可以將你的覆蓋圖添加到你的MapView中。代表你點擊位置的GeoPoint對象會在你選擇地圖上的某處時傳遞給onTap（）方法。將此Geo點保存在您的數據庫中，並從數據庫填充您的列表視圖。

示例代碼：覆蓋類：

在評論

class MapOverlay extends 
     com.google.android.maps.ItemizedOverlay<OverlayItem> { 

    @Override 
    public boolean onTap(GeoPoint p , MapView mapView) { 

     // TODO Auto-generated method stub 
    Log.i("Latitude" , String.valueOf(p.getLatitudeE6()/1E6)); 
    Log.i("Longitude", String.valueOf(p.getLongitudeE6()/1E6)); 


     return super.onTap(p, mapView); 
    }