How to implement google maps search by address in Android?

How to implement google maps search by address in Android?

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

Example

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;
    }
} 

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

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

Example

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();
}

Where txtsearch is a EditText and controller is a map controller ..