pl.mg6.newmaps.demo.InfoWindowExampleActivity.java Source code

Introduction

Here is the source code for pl.mg6.newmaps.demo.InfoWindowExampleActivity.java

Source

/*
 * Copyright (C) 2013 Maciej Grski
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package pl.mg6.newmaps.demo;

import pl.mg6.newmaps.demo.util.GoogleMapHelper;
import android.os.Bundle;
import android.os.Handler;
import android.os.SystemClock;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.widget.TextView;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.InfoWindowAdapter;
import com.google.android.gms.maps.GoogleMap.OnInfoWindowClickListener;
import com.google.android.gms.maps.model.BitmapDescriptor;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.LatLngBounds;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;

public class InfoWindowExampleActivity extends FragmentActivity {

    private static final LatLng GNIEZNO_LOCATION = new LatLng(52.5349253, 17.5826575);
    private static final LatLng CRACOW_LOCATION = new LatLng(50.06465, 19.9449799);
    private static final LatLng WARSAW_LOCATION = new LatLng(52.2296756, 21.0122287);
    private Marker gnieznoMarker;
    private Marker cracowMarker;
    private Marker warsawMarker;

    private Handler handler = new Handler();
    private long startTime = SystemClock.uptimeMillis() / 1000;

    private Runnable refreshInfoWindow = new Runnable() {

        @Override
        public void run() {
            if (cracowMarker.isInfoWindowShown()) {
                cracowMarker.showInfoWindow();
            }
            if (warsawMarker.isInfoWindowShown()) {
                warsawMarker.showInfoWindow();
            }
            handler.postDelayed(this, 2222);
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.info_window_example);

        GoogleMap map = GoogleMapHelper.getMap(this, R.id.info_window_map);

        setInfoWindowAdapter(map);
        setInfoWindowClickListener(map);

        addGnieznoMarker(map);
        addCracowMarker(map);
        addWarsawMarker(map);

        if (savedInstanceState == null) {
            moveCameraToShowMarkers(map);
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        handler.post(refreshInfoWindow);
    }

    @Override
    protected void onPause() {
        super.onPause();
        handler.removeCallbacks(refreshInfoWindow);
    }

    private void setInfoWindowAdapter(GoogleMap map) {
        map.setInfoWindowAdapter(new InfoWindowAdapter() {

            @Override
            public View getInfoWindow(Marker marker) {
                if (warsawMarker.equals(marker)) {
                    return createView(R.layout.warsaw_info_window, 1711324, 3309);
                }
                return null;
            }

            @Override
            public View getInfoContents(Marker marker) {
                if (cracowMarker.equals(marker)) {
                    return createView(R.layout.cracow_info_contents, 759137, 2232);
                }
                return null;
            }

            private View createView(int layoutId, int population, int density) {
                View view = getLayoutInflater().inflate(layoutId, null);
                TextView snippet = (TextView) view.findViewById(R.id.snippet);
                long currentTime = SystemClock.uptimeMillis() / 1000;
                int bornCount = (int) (currentTime - startTime);
                snippet.setText("Populacja: " + (population + bornCount) + "\nGsto: " + density + " os./km^2");
                return view;
            }
        });
    }

    private void setInfoWindowClickListener(GoogleMap map) {
        map.setOnInfoWindowClickListener(new OnInfoWindowClickListener() {

            @Override
            public void onInfoWindowClick(Marker marker) {
                if (gnieznoMarker.equals(marker)) {
                    gnieznoMarker.setSnippet("Pierwsza stolica Polski\ndo ok. 1039r.");
                    gnieznoMarker.showInfoWindow();
                }
                if (warsawMarker.equals(marker)) {
                    cracowMarker.showInfoWindow();
                }
                if (cracowMarker.equals(marker)) {
                    cracowMarker.hideInfoWindow();
                }
            }
        });
    }

    private void addGnieznoMarker(GoogleMap map) {
        MarkerOptions options = new MarkerOptions().position(GNIEZNO_LOCATION).title("Gniezno")
                .snippet("Pierwsza stolica Polski");
        gnieznoMarker = map.addMarker(options);
    }

    private void addCracowMarker(GoogleMap map) {
        BitmapDescriptor icon = BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN);
        MarkerOptions options = new MarkerOptions().position(CRACOW_LOCATION).icon(icon);
        cracowMarker = map.addMarker(options);
    }

    private void addWarsawMarker(GoogleMap map) {
        BitmapDescriptor icon = BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE);
        MarkerOptions options = new MarkerOptions().position(WARSAW_LOCATION).icon(icon);
        warsawMarker = map.addMarker(options);
    }

    private void moveCameraToShowMarkers(GoogleMap map) {
        LatLngBounds bounds = LatLngBounds.builder().include(GNIEZNO_LOCATION).include(CRACOW_LOCATION)
                .include(WARSAW_LOCATION).build();
        int width = getResources().getDisplayMetrics().widthPixels;
        int height = getResources().getDisplayMetrics().heightPixels;
        int padding = getResources().getDimensionPixelSize(R.dimen.padding);
        map.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds, width, height, padding));
    }
}