如何实现谷歌地图的地址Android中搜索？ [英] How to implement google maps search by address in Android?

问题描述

如何按地址在Android中实现谷歌地图搜索？

How to implement google maps search by address in Android?

推荐答案

有关，你需要在地图上的活动创建一个地图覆盖类。

For that you need to create one map overlay class in map activity.

class MapOverlay extends com.google.android.maps.Overlay
{
    public boolean draw(Canvas canvas, MapView mapView, 
    boolean shadow, long when) 
    {
        super.draw(canvas, mapView, shadow);                   

        //---translate the GeoPoint to screen pixels---
        Point screenPts = new Point();
        mapView.getProjection().toPixels(p, screenPts);

        //---add the marker---
        Bitmap bmp = BitmapFactory.decodeResource(
            getResources(), R.drawable.pink);            
        canvas.drawBitmap(bmp, screenPts.x, screenPts.y-32, null);         
        return true;
    }
} 

在哪里，请更改R.Drawable.pink。把你的任何绘制。

Where please change R.Drawable.pink . Put your any drawable.

现在，请写在下面code在搜索onClick事件。

Now please write below code in your search onClick event..

List<Address> addresses = geoCoder.getFromLocationName(txtsearch.getText().toString(),5);

                if(addresses.size() > 0)
                {
                     p = new GeoPoint( (int) (addresses.get(0).getLatitude() * 1E6), 
                                      (int) (addresses.get(0).getLongitude() * 1E6));

                       controller.animateTo(p);
                       controller.setZoom(12);

                       MapOverlay mapOverlay = new MapOverlay();
                     List<Overlay> listOfOverlays = map.getOverlays();
                     listOfOverlays.clear();
                     listOfOverlays.add(mapOverlay);

                       map.invalidate();
                       txtsearch.setText("");
                }
                else
                {
                        AlertDialog.Builder adb = new AlertDialog.Builder(GoogleMap.this);
                        adb.setTitle("Google Map");
                        adb.setMessage("Please Provide the Proper Place");
                        adb.setPositiveButton("Close",null);
                        adb.show();
                }

在哪里txtSearch是的EditText和控制器是映象控制器。

Where txtSearch is a edittext and controller is a map controller ..

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