MapsActivity.java

package com.gun0912.googlemapcustommarker;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;

import java.text.NumberFormat;
import java.util.ArrayList;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback, GoogleMap.OnMarkerClickListener, GoogleMap.OnMapClickListener {

    Marker selectedMarker;
    View marker_root_view;
    TextView tv_marker;
    private GoogleMap mMap;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;


        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(37.537523, 126.96558), 14));
        mMap.setOnMarkerClickListener(this);
        mMap.setOnMapClickListener(this);

        setCustomMarkerView();
        getSampleMarkerItems();


    }

    private void setCustomMarkerView() {

        marker_root_view = LayoutInflater.from(this).inflate(R.layout.marker_layout, null);
        tv_marker = (TextView) marker_root_view.findViewById(R.id.tv_marker);
    }


    private void getSampleMarkerItems() {
        ArrayList<MarkerItem> sampleList = new ArrayList();


        sampleList.add(new MarkerItem(37.538523, 126.96568, 2500000));
        sampleList.add(new MarkerItem(37.527523, 126.96568, 100000));
        sampleList.add(new MarkerItem(37.549523, 126.96568, 15000));
        sampleList.add(new MarkerItem(37.538523, 126.95768, 5000));


        for (MarkerItem markerItem : sampleList) {
            addMarker(markerItem, false);
        }

    }



    private Marker addMarker(MarkerItem markerItem, boolean isSelectedMarker) {


        LatLng position = new LatLng(markerItem.getLat(), markerItem.getLon());
        int price = markerItem.getPrice();
        String formatted = NumberFormat.getCurrencyInstance().format((price));

        tv_marker.setText(formatted);

        if (isSelectedMarker) {
            tv_marker.setBackgroundResource(R.drawable.ic_marker_phone_blue);
            tv_marker.setTextColor(Color.WHITE);
        } else {
            tv_marker.setBackgroundResource(R.drawable.ic_marker_phone);
            tv_marker.setTextColor(Color.BLACK);
        }

        MarkerOptions markerOptions = new MarkerOptions();
        markerOptions.title(Integer.toString(price));
        markerOptions.position(position);
        markerOptions.icon(BitmapDescriptorFactory.fromBitmap(createDrawableFromView(this, marker_root_view)));


        return mMap.addMarker(markerOptions);

    }




    // View를 Bitmap으로 변환
    private Bitmap createDrawableFromView(Context context, View view) {

        DisplayMetrics displayMetrics = new DisplayMetrics();
        ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        view.measure(displayMetrics.widthPixels, displayMetrics.heightPixels);
        view.layout(0, 0, displayMetrics.widthPixels, displayMetrics.heightPixels);
        view.buildDrawingCache();
        Bitmap bitmap = Bitmap.createBitmap(view.getMeasuredWidth(), view.getMeasuredHeight(), Bitmap.Config.ARGB_8888);

        Canvas canvas = new Canvas(bitmap);
        view.draw(canvas);

        return bitmap;
    }


    private Marker addMarker(Marker marker, boolean isSelectedMarker) {
        double lat = marker.getPosition().latitude;
        double lon = marker.getPosition().longitude;
        int price = Integer.parseInt(marker.getTitle());
        MarkerItem temp = new MarkerItem(lat, lon, price);
        return addMarker(temp, isSelectedMarker);

    }



    @Override
    public boolean onMarkerClick(Marker marker) {

        CameraUpdate center = CameraUpdateFactory.newLatLng(marker.getPosition());
        mMap.animateCamera(center);

        changeSelectedMarker(marker);

        return true;
    }



    private void changeSelectedMarker(Marker marker) {
        // 선택했던 마커 되돌리기
        if (selectedMarker != null) {
            addMarker(selectedMarker, false);
            selectedMarker.remove();
        }

        // 선택한 마커 표시
        if (marker != null) {
            selectedMarker = addMarker(marker, true);
            marker.remove();
        }


    }


    @Override
    public void onMapClick(LatLng latLng) {
        changeSelectedMarker(null);
    }


}