Google Maps Android API V2を使ってみる２

「Google Maps Android API V2を使ってみる」では、Google Mapsの表示をLayoutのactive_main.xmlに記述していましたが、今回地図の表示はMainActivity.javaにフルコードで記述してみました。

また、本番用にLegal Notices(免責事項)の表示用のコードも追加。

初期位置以外に、現在地表示の機能もありますので、初期位置に復帰するコードもつけておきました。

MainActivityのコードは、位置を指定して表示する場合と、現在位置を取得して表示する場合の２つを分けています。

使い方

Google Maps Android API V2を使ってみる では、５つほどのステップをふんでいました。

１：Maps API SDKのインストール（Google Play servicesのライブラリをEclipseにインポート）
２：Google Play servicesライブラリのプロジェクトを作成
３：Google Maps V2を表示するアプリのプロジェクトを作成
４：MapsのAPIキー取得
５：取得したキーをプロジェクトに登録して、アプリをスマホにインストール

今回は単純に３：のみ記述しておきます。

新しいプロジェクトを作成

メニュのFile -> New -> Projectで新しいプロジェクトを作成。

「Android Application Project」を使います。

画像の情報は例です。適当に変えてください。

Targetは2.3.3以上です。
Themeはなしにしておきます。

以後、Nextをクリックして、最後にFinish。

Package Explorerに表示されたプロジェクト名を右クリックして、「Properties」を選択。

「is Library」にチェックが入っていないのを確認して「Add」をクリック。

「google-play-services_lib」を選んで、OK。

Google Maps v2を表示するため、今回は３つのファイルをいじります。

○MainActivity.java

○AndroidManifest.xml

○activity_main.xml

メニュの部分で、Legal Noticesの表示と、初期位置に復帰するコードを記述しておきました。

MainActivity.java（位置を指定して表示）

<span class="keyword">import</span> android.location.Criteria;
<span class="keyword">import</span> android.location.Location;
<span class="keyword">import</span> android.location.LocationManager;
<span class="keyword">import</span> android.os.Bundle;
<span class="keyword">import</span> android.view.Menu;
<span class="keyword">import</span> android.view.MenuItem;
<span class="keyword">import</span> android.app.AlertDialog;
<span class="keyword">import</span> android.app.Dialog;
<span class="keyword">import</span> android.util.Log;
<span class="keyword">import</span> android.widget.Toast;

<span class="keyword">import</span> android.support.v4.app.Fragment;
<span class="keyword">import</span> android.support.v4.app.FragmentActivity;
<span class="keyword">import</span> android.support.v4.app.FragmentManager;
<span class="keyword">import</span> android.support.v4.app.FragmentTransaction;
<span class="keyword">import</span> com.google.android.gms.maps.SupportMapFragment;
<span class="keyword">import</span> com.google.android.gms.common.GooglePlayServicesUtil;
<span class="keyword">import</span> com.google.android.gms.common.ConnectionResult;

<span class="keyword">import</span> com.google.android.gms.maps.CameraUpdate;
<span class="keyword">import</span> com.google.android.gms.maps.CameraUpdateFactory;
<span class="keyword">import</span> com.google.android.gms.maps.model.CameraPosition;

<span class="keyword">import</span> com.google.android.gms.maps.GoogleMap;
<span class="keyword">import</span> com.google.android.gms.maps.GoogleMapOptions;

<span class="keyword">import</span> com.google.android.gms.maps.UiSettings;
<span class="keyword">import</span> com.google.android.gms.maps.model.LatLng;

<span class="keyword">import</span>    android.widget.TextView;

<span class="keyword">public</span> <span class="keyword">class</span> MainActivity <span class="keyword">extends</span> FragmentActivity {
    
    <span class="keyword">private</span> SupportMapFragment mapFragment;
    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> String HOGE_MAP_FRAGMENT_TAG = <span class="str">"maps_fragment"</span>;
    
    <span class="keyword">private</span> GoogleMap gMap;
    <span class="keyword">public</span> <span class="keyword">double</span> latitude = <span class="num">0</span>;
    <span class="keyword">public</span> <span class="keyword">double</span> longitude = <span class="num">0</span>;
    
    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> MENU_A = <span class="num">0</span>;
    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> MENU_B = <span class="num">1</span>;
        
    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> RQS_GooglePlayServices = <span class="num">1</span>;
    
    <span class="keyword">private</span> TextView textview;
        
    @Override
    <span class="keyword">protected</span> <span class="keyword">void</span> onCreate(Bundle savedInstanceState) {
        
        <span class="keyword">super</span>.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        textview = (TextView) findViewById(R.id.tv_location);
        
        <span class="rem">//Google Play Servicesが使えるかどうかのステータス</span>
        <span class="keyword">int</span> status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());
 
        <span class="rem">// Showing status</span>
        <span class="keyword">if</span>(status!=ConnectionResult.SUCCESS){ 
            <span class="rem">// Google Play Services が使えない場合</span>
            <span class="keyword">int</span> requestCode = <span class="num">10</span>;
            Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, <span class="keyword">this</span>, requestCode);
            dialog.show();
 
        }<span class="keyword">else</span> { 
            <span class="rem">// Google Play Services が使える場合</span>
            <span class="rem">//activity_main.xmlのSupportMapFragmentへの参照を取得</span>
            SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
            
            <span class="rem">//fragmentからGoogleMap objectを取得</span>
            gMap = fm.getMap();
            
            <span class="rem">//Google MapのMyLocationレイヤーを使用可能にする</span>
            gMap.setMyLocationEnabled(true);
            gMap.setIndoorEnabled(true);
            gMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
            gMap.setTrafficEnabled(true);
            
            
            
            <span class="rem">//システムサービスのLOCATION_SERVICEからLocationManager objectを取得</span>
            LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
            
            <span class="rem">//retrieve providerへcriteria objectを生成</span>
            Criteria criteria = <span class="keyword">new</span> Criteria();
            
            <span class="rem">//Best providerの名前を取得</span>
            String provider = locationManager.getBestProvider(criteria, true);
            
            
        }   
        
    }

    @Override
    <span class="keyword">public</span> <span class="keyword">boolean</span> onCreateOptionsMenu(Menu menu) {
        <span class="rem">// Inflate the menu; this adds items to the action bar if it is present.</span>
        <span class="rem">//getMenuInflater().inflate(R.menu.activity_main, menu);</span>
        
        menu.add(<span class="num">0</span>, MENU_A,   <span class="num">0</span>, <span class="str">"Home"</span>);
        menu.add(<span class="num">0</span>, MENU_B,   <span class="num">0</span>, <span class="str">"Legal Notices"</span>);
        <span class="keyword">return</span> true;
    }
    
    <span class="keyword">public</span> <span class="keyword">boolean</span> onOptionsItemSelected(MenuItem item) {
        <span class="keyword">switch</span> ( item.getItemId() ){
            <span class="keyword">case</span> MENU_A:
                <span class="rem">//復帰</span>
                LatLng HOME = <span class="keyword">new</span> LatLng(<span class="num">35.02878398517723</span>,<span class="num">135.77929973602295</span>);
                moveCamera2Target(true,HOME,<span class="num">18.0</span>f,<span class="num">60.0</span>f,<span class="num">0.0</span>f);
                <span class="keyword">return</span> true;
                
            <span class="keyword">case</span> MENU_B:
                <span class="rem">//Legal Notices</span>
                String LicenseInfo = GooglePlayServicesUtil.getOpenSourceSoftwareLicenseInfo(getApplicationContext());
                AlertDialog.Builder LicenseDialog = <span class="keyword">new</span> AlertDialog.Builder(MainActivity.<span class="keyword">this</span>);
                LicenseDialog.setTitle(<span class="str">"Legal Notices"</span>);
                LicenseDialog.setMessage(LicenseInfo);
                LicenseDialog.show();
                
                <span class="keyword">return</span> true;
        }
        <span class="keyword">return</span> false;
    }
    
    @Override
        <span class="keyword">protected</span> <span class="keyword">void</span> onResume(){
 
            <span class="keyword">super</span>.onResume();
            
            
            <span class="keyword">int</span> resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());

            <span class="keyword">if</span> (resultCode == ConnectionResult.SUCCESS){
                
                Toast.makeText(getApplicationContext(), 
                <span class="str">"isGooglePlayServicesAvailable SUCCESS"</span>, 
                Toast.LENGTH_LONG).show();
                
                
                
                <span class="rem">//初期位置</span>
                LatLng target = <span class="keyword">new</span> LatLng(<span class="num">35.02878398517723</span>,<span class="num">135.77929973602295</span>);
                
                textview.setText(<span class="str">"35.02878398517723,135.77929973602295"</span>);
                
                <span class="rem">//ズームレベル</span>
                <span class="keyword">float</span> zoom = <span class="num">18.0</span>f;
                
                <span class="rem">//チルトアングル</span>
                 <span class="keyword">float</span> tilt = <span class="num">90.0</span>f; <span class="rem">// 0.0 - 90.0</span>
                
                <span class="rem">//向き</span>
                <span class="keyword">float</span> bearing = <span class="num">0.0</span>f;
                
                <span class="rem">//CameraUpdate</span>
                CameraPosition pos = <span class="keyword">new</span> CameraPosition(target, zoom, tilt, bearing);
                CameraUpdate camera = CameraUpdateFactory.newCameraPosition(pos);
                
                gMap.moveCamera(camera);
                
                <span class="rem">//UiSettings</span>
                UiSettings uiSet = gMap.getUiSettings();
                uiSet.setZoomControlsEnabled(true);
                uiSet.setZoomGesturesEnabled(true);
                <span class="rem">//uiSet.setCompassEnabled(true);</span>
                uiSet.setRotateGesturesEnabled(true); 
                
            }<span class="keyword">else</span>{
                GooglePlayServicesUtil.getErrorDialog(resultCode, <span class="keyword">this</span>, RQS_GooglePlayServices);
                
            }
            
        }
    
    <span class="keyword">private</span> <span class="keyword">void</span> moveCamera2Target(<span class="keyword">boolean</span> animation_effect,LatLng target,<span class="keyword">float</span> zoom,<span class="keyword">float</span> tilt,<span class="keyword">float</span> bearing) {
        CameraPosition pos = <span class="keyword">new</span> CameraPosition(target, zoom, tilt, bearing);
        CameraUpdate camera = CameraUpdateFactory.newCameraPosition(pos);
        
        
        
        <span class="keyword">if</span> (animation_effect == true) {
            <span class="rem">//</span>
            gMap.animateCamera(camera);
        } <span class="keyword">else</span> {
            <span class="rem">//</span>
            gMap.moveCamera(camera);
        }
    }
    
    
}

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import android.location.Criteria;

import android.location.Location;

import android.location.LocationManager;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.app.AlertDialog;

import android.app.Dialog;

import android.util.Log;

import android.widget.Toast;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentTransaction;

import com.google.android.gms.maps.SupportMapFragment;

import com.google.android.gms.common.GooglePlayServicesUtil;

import com.google.android.gms.common.ConnectionResult;

import com.google.android.gms.maps.CameraUpdate;

import com.google.android.gms.maps.CameraUpdateFactory;

import com.google.android.gms.maps.model.CameraPosition;

import com.google.android.gms.maps.GoogleMap;

import com.google.android.gms.maps.GoogleMapOptions;

import com.google.android.gms.maps.UiSettings;

import com.google.android.gms.maps.model.LatLng;

import android.widget.TextView;

public class MainActivity extends FragmentActivity {

private SupportMapFragment mapFragment;

private static final String HOGE_MAP_FRAGMENT_TAG = "maps_fragment";

private GoogleMap gMap;

public double latitude = 0;

public double longitude = 0;

private static final int MENU_A = 0;

private static final int MENU_B = 1;

private static final int RQS_GooglePlayServices = 1;

private TextView textview;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

textview = (TextView) findViewById(R.id.tv_location);

//Google Play Servicesが使えるかどうかのステータス

int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());

// Showing status

if(status!=ConnectionResult.SUCCESS){

// Google Play Services が使えない場合

int requestCode = 10;

Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, this, requestCode);

dialog.show();

}else {

// Google Play Services が使える場合

//activity_main.xmlのSupportMapFragmentへの参照を取得

SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);

//fragmentからGoogleMap objectを取得

gMap = fm.getMap();

//Google MapのMyLocationレイヤーを使用可能にする

gMap.setMyLocationEnabled(true);

gMap.setIndoorEnabled(true);

gMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);

gMap.setTrafficEnabled(true);

//システムサービスのLOCATION_SERVICEからLocationManager objectを取得

LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

//retrieve providerへcriteria objectを生成

Criteria criteria = new Criteria();

//Best providerの名前を取得

String provider = locationManager.getBestProvider(criteria, true);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

//getMenuInflater().inflate(R.menu.activity_main, menu);

menu.add(0, MENU_A, 0, "Home");

menu.add(0, MENU_B, 0, "Legal Notices");

return true;

}

public boolean onOptionsItemSelected(MenuItem item) {

switch ( item.getItemId() ){

case MENU_A:

//復帰

LatLng HOME = new LatLng(35.02878398517723,135.77929973602295);

moveCamera2Target(true,HOME,18.0f,60.0f,0.0f);

return true;

case MENU_B:

//Legal Notices

String LicenseInfo = GooglePlayServicesUtil.getOpenSourceSoftwareLicenseInfo(getApplicationContext());

AlertDialog.Builder LicenseDialog = new AlertDialog.Builder(MainActivity.this);

LicenseDialog.setTitle("Legal Notices");

LicenseDialog.setMessage(LicenseInfo);

LicenseDialog.show();

return true;

}

return false;

}

@Override

protected void onResume(){

super.onResume();

int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());

if (resultCode == ConnectionResult.SUCCESS){

Toast.makeText(getApplicationContext(),

"isGooglePlayServicesAvailable SUCCESS",

Toast.LENGTH_LONG).show();

//初期位置

LatLng target = new LatLng(35.02878398517723,135.77929973602295);

textview.setText("35.02878398517723,135.77929973602295");

//ズームレベル

float zoom = 18.0f;

//チルトアングル

float tilt = 90.0f; // 0.0 - 90.0

//向き

float bearing = 0.0f;

//CameraUpdate

CameraPosition pos = new CameraPosition(target, zoom, tilt, bearing);

CameraUpdate camera = CameraUpdateFactory.newCameraPosition(pos);

gMap.moveCamera(camera);

//UiSettings

UiSettings uiSet = gMap.getUiSettings();

uiSet.setZoomControlsEnabled(true);

uiSet.setZoomGesturesEnabled(true);

//uiSet.setCompassEnabled(true);

uiSet.setRotateGesturesEnabled(true);

}else{

GooglePlayServicesUtil.getErrorDialog(resultCode, this, RQS_GooglePlayServices);

}

private void moveCamera2Target(boolean animation_effect,LatLng target,float zoom,float tilt,float bearing) {

CameraPosition pos = new CameraPosition(target, zoom, tilt, bearing);

CameraUpdate camera = CameraUpdateFactory.newCameraPosition(pos);

if (animation_effect == true) {

//

gMap.animateCamera(camera);

} else {

//

gMap.moveCamera(camera);

}

MainActivity.java（現在位置を取得して表示）

<span class="keyword">import</span> android.location.Criteria;
<span class="keyword">import</span> android.location.Location;
<span class="keyword">import</span> android.location.LocationManager;
<span class="keyword">import</span> android.location.LocationListener;
<span class="keyword">import</span> android.os.Bundle;
<span class="keyword">import</span> android.view.Menu;
<span class="keyword">import</span> android.view.MenuItem;
<span class="keyword">import</span> android.app.AlertDialog;
<span class="keyword">import</span> android.app.Dialog;
<span class="keyword">import</span> android.util.Log;
<span class="keyword">import</span> android.widget.Toast;

<span class="keyword">import</span> android.support.v4.app.Fragment;
<span class="keyword">import</span> android.support.v4.app.FragmentActivity;
<span class="keyword">import</span> android.support.v4.app.FragmentManager;
<span class="keyword">import</span> android.support.v4.app.FragmentTransaction;
<span class="keyword">import</span> com.google.android.gms.maps.SupportMapFragment;
<span class="keyword">import</span> com.google.android.gms.common.GooglePlayServicesUtil;
<span class="keyword">import</span> com.google.android.gms.common.ConnectionResult;

<span class="keyword">import</span> com.google.android.gms.maps.CameraUpdate;
<span class="keyword">import</span> com.google.android.gms.maps.CameraUpdateFactory;
<span class="keyword">import</span> com.google.android.gms.maps.model.CameraPosition;

<span class="keyword">import</span> com.google.android.gms.maps.GoogleMap;
<span class="keyword">import</span> com.google.android.gms.maps.GoogleMapOptions;

<span class="keyword">import</span> com.google.android.gms.maps.UiSettings;
<span class="keyword">import</span> com.google.android.gms.maps.model.LatLng;

<span class="keyword">import</span>    android.widget.TextView;

<span class="keyword">public</span> <span class="keyword">class</span> MainActivity <span class="keyword">extends</span> FragmentActivity <span class="keyword">implements</span> LocationListener {
    
    <span class="keyword">private</span> SupportMapFragment mapFragment;
    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> String HOGE_MAP_FRAGMENT_TAG = <span class="str">"maps_fragment"</span>;
    
    <span class="keyword">private</span> GoogleMap gMap;
    <span class="keyword">public</span> <span class="keyword">double</span> latitude = <span class="num">0</span>;
    <span class="keyword">public</span> <span class="keyword">double</span> longitude = <span class="num">0</span>;
    
    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> MENU_A = <span class="num">0</span>;
    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> MENU_B = <span class="num">1</span>;
        
    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> <span class="keyword">int</span> RQS_GooglePlayServices = <span class="num">1</span>;
    
    <span class="keyword">private</span> TextView textview;
        
    @Override
    <span class="keyword">protected</span> <span class="keyword">void</span> onCreate(Bundle savedInstanceState) {
        
        <span class="keyword">super</span>.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        textview = (TextView) findViewById(R.id.tv_location);
        
        <span class="rem">//Google Play Servicesが使えるかどうかのステータス</span>
        <span class="keyword">int</span> status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());
 
        <span class="rem">// Showing status</span>
        <span class="keyword">if</span>(status!=ConnectionResult.SUCCESS){ 
            <span class="rem">// Google Play Services が使えない場合</span>
            <span class="keyword">int</span> requestCode = <span class="num">10</span>;
            Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, <span class="keyword">this</span>, requestCode);
            dialog.show();
 
        }<span class="keyword">else</span> { 
            <span class="rem">// Google Play Services が使える場合</span>
            <span class="rem">//activity_main.xmlのSupportMapFragmentへの参照を取得</span>
            SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
            
            <span class="rem">//fragmentからGoogleMap objectを取得</span>
            gMap = fm.getMap();
            
            <span class="rem">//Google MapのMyLocationレイヤーを使用可能にする</span>
            gMap.setMyLocationEnabled(true);
            gMap.setIndoorEnabled(true);
            gMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
            gMap.setTrafficEnabled(true);
            
            
            
            <span class="rem">//システムサービスのLOCATION_SERVICEからLocationManager objectを取得</span>
            LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
            
            <span class="rem">//retrieve providerへcriteria objectを生成</span>
            Criteria criteria = <span class="keyword">new</span> Criteria();
            
            <span class="rem">//Best providerの名前を取得</span>
            String provider = locationManager.getBestProvider(criteria, true);
            
            
            <span class="rem">//現在位置を取得</span>
            Location location = locationManager.getLastKnownLocation(provider);
 
            <span class="keyword">if</span>(location!=null){
                onLocationChanged(location);
            }
            locationManager.requestLocationUpdates(provider, <span class="num">20000</span>, <span class="num">0</span>, <span class="keyword">this</span>);
            
            
        }   
        
    }

    @Override
    <span class="keyword">public</span> <span class="keyword">boolean</span> onCreateOptionsMenu(Menu menu) {
        <span class="rem">// Inflate the menu; this adds items to the action bar if it is present.</span>
        <span class="rem">//getMenuInflater().inflate(R.menu.activity_main, menu);</span>
        
        menu.add(<span class="num">0</span>, MENU_A,   <span class="num">0</span>, <span class="str">"Home"</span>);
        menu.add(<span class="num">0</span>, MENU_B,   <span class="num">0</span>, <span class="str">"Legal Notices"</span>);
        <span class="keyword">return</span> true;
    }
    
    <span class="keyword">public</span> <span class="keyword">boolean</span> onOptionsItemSelected(MenuItem item) {
        <span class="keyword">switch</span> ( item.getItemId() ){
            <span class="keyword">case</span> MENU_A:
                <span class="rem">//復帰</span>
                LatLng HOME = <span class="keyword">new</span> LatLng(<span class="num">35.02878398517723</span>,<span class="num">135.77929973602295</span>);
                moveCamera2Target(true,HOME,<span class="num">18.0</span>f,<span class="num">60.0</span>f,<span class="num">0.0</span>f);
                <span class="keyword">return</span> true;
                
            <span class="keyword">case</span> MENU_B:
                <span class="rem">//Legal Notices</span>
                String LicenseInfo = GooglePlayServicesUtil.getOpenSourceSoftwareLicenseInfo(getApplicationContext());
                AlertDialog.Builder LicenseDialog = <span class="keyword">new</span> AlertDialog.Builder(MainActivity.<span class="keyword">this</span>);
                LicenseDialog.setTitle(<span class="str">"Legal Notices"</span>);
                LicenseDialog.setMessage(LicenseInfo);
                LicenseDialog.show();
                
                <span class="keyword">return</span> true;
        }
        <span class="keyword">return</span> false;
    }
    
    @Override
        <span class="keyword">protected</span> <span class="keyword">void</span> onResume(){
 
            <span class="keyword">super</span>.onResume();
            
            
        }
    
    <span class="keyword">private</span> <span class="keyword">void</span> moveCamera2Target(<span class="keyword">boolean</span> animation_effect,LatLng target,<span class="keyword">float</span> zoom,<span class="keyword">float</span> tilt,<span class="keyword">float</span> bearing) {
        CameraPosition pos = <span class="keyword">new</span> CameraPosition(target, zoom, tilt, bearing);
        CameraUpdate camera = CameraUpdateFactory.newCameraPosition(pos);
        
        
        
        <span class="keyword">if</span> (animation_effect == true) {
            <span class="rem">//</span>
            gMap.animateCamera(camera);
        } <span class="keyword">else</span> {
            <span class="rem">//</span>
            gMap.moveCamera(camera);
        }
    }
    
    
    @Override
    <span class="keyword">public</span> <span class="keyword">void</span> onLocationChanged(Location location) {
 
        <span class="rem">//現在位置の緯度を取得</span>
        latitude = location.getLatitude();
 
        <span class="rem">//現在位置の経度を取得</span>
        longitude = location.getLongitude();
        
        textview.setText(latitude + <span class="str">","</span> + longitude);
        <span class="rem">//reverse_geocode(latitude,longitude);</span>
        
        <span class="rem">//現在位置からLatLng objectを生成</span>
        LatLng latLng = <span class="keyword">new</span> LatLng(latitude, longitude);
 
        <span class="rem">//Google Mapに現在地を表示</span>
        gMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
 
        <span class="rem">//Google Mapの Zoom値を指定</span>
        gMap.animateCamera(CameraUpdateFactory.zoomTo(<span class="num">15</span>));
 
    }
 
    @Override
    <span class="keyword">public</span> <span class="keyword">void</span> onProviderDisabled(String provider) {
        <span class="rem">// TODO Auto-generated method stub</span>
    }
 
    @Override
    <span class="keyword">public</span> <span class="keyword">void</span> onProviderEnabled(String provider) {
        <span class="rem">// TODO Auto-generated method stub</span>
    }
 
    @Override
    <span class="keyword">public</span> <span class="keyword">void</span> onStatusChanged(String provider, <span class="keyword">int</span> status, Bundle extras) {
        <span class="rem">// TODO Auto-generated method stub</span>
    }
    
}

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import android.location.Criteria;

import android.location.Location;

import android.location.LocationManager;

import android.location.LocationListener;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.app.AlertDialog;

import android.app.Dialog;

import android.util.Log;

import android.widget.Toast;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentTransaction;

import com.google.android.gms.maps.SupportMapFragment;

import com.google.android.gms.common.GooglePlayServicesUtil;

import com.google.android.gms.common.ConnectionResult;

import com.google.android.gms.maps.CameraUpdate;

import com.google.android.gms.maps.CameraUpdateFactory;

import com.google.android.gms.maps.model.CameraPosition;

import com.google.android.gms.maps.GoogleMap;

import com.google.android.gms.maps.GoogleMapOptions;

import com.google.android.gms.maps.UiSettings;

import com.google.android.gms.maps.model.LatLng;

import android.widget.TextView;

public class MainActivity extends FragmentActivity implements LocationListener {

private SupportMapFragment mapFragment;

private static final String HOGE_MAP_FRAGMENT_TAG = "maps_fragment";

private GoogleMap gMap;

public double latitude = 0;

public double longitude = 0;

private static final int MENU_A = 0;

private static final int MENU_B = 1;

private static final int RQS_GooglePlayServices = 1;

private TextView textview;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

textview = (TextView) findViewById(R.id.tv_location);

//Google Play Servicesが使えるかどうかのステータス

int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());

// Showing status

if(status!=ConnectionResult.SUCCESS){

// Google Play Services が使えない場合

int requestCode = 10;

Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, this, requestCode);

dialog.show();

}else {

// Google Play Services が使える場合

//activity_main.xmlのSupportMapFragmentへの参照を取得

SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);

//fragmentからGoogleMap objectを取得

gMap = fm.getMap();

//Google MapのMyLocationレイヤーを使用可能にする

gMap.setMyLocationEnabled(true);

gMap.setIndoorEnabled(true);

gMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);

gMap.setTrafficEnabled(true);

//システムサービスのLOCATION_SERVICEからLocationManager objectを取得

LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

//retrieve providerへcriteria objectを生成

Criteria criteria = new Criteria();

//Best providerの名前を取得

String provider = locationManager.getBestProvider(criteria, true);

//現在位置を取得

Location location = locationManager.getLastKnownLocation(provider);

if(location!=null){

onLocationChanged(location);

}

locationManager.requestLocationUpdates(provider, 20000, 0, this);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

//getMenuInflater().inflate(R.menu.activity_main, menu);

menu.add(0, MENU_A, 0, "Home");

menu.add(0, MENU_B, 0, "Legal Notices");

return true;

}

public boolean onOptionsItemSelected(MenuItem item) {

switch ( item.getItemId() ){

case MENU_A:

//復帰

LatLng HOME = new LatLng(35.02878398517723,135.77929973602295);

moveCamera2Target(true,HOME,18.0f,60.0f,0.0f);

return true;

case MENU_B:

//Legal Notices

String LicenseInfo = GooglePlayServicesUtil.getOpenSourceSoftwareLicenseInfo(getApplicationContext());

AlertDialog.Builder LicenseDialog = new AlertDialog.Builder(MainActivity.this);

LicenseDialog.setTitle("Legal Notices");

LicenseDialog.setMessage(LicenseInfo);

LicenseDialog.show();

return true;

}

return false;

}

@Override

protected void onResume(){

super.onResume();

}

CameraPosition pos = new CameraPosition(target, zoom, tilt, bearing);

CameraUpdate camera = CameraUpdateFactory.newCameraPosition(pos);

if (animation_effect == true) {

//

gMap.animateCamera(camera);

} else {

//

gMap.moveCamera(camera);

}

@Override

public void onLocationChanged(Location location) {

//現在位置の緯度を取得

latitude = location.getLatitude();

//現在位置の経度を取得

longitude = location.getLongitude();

textview.setText(latitude + "," + longitude);

//reverse_geocode(latitude,longitude);

//現在位置からLatLng objectを生成

LatLng latLng = new LatLng(latitude, longitude);

//Google Mapに現在地を表示

gMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));

//Google Mapの Zoom値を指定

gMap.animateCamera(CameraUpdateFactory.zoomTo(15));

}

@Override

public void onProviderDisabled(String provider) {

// TODO Auto-generated method stub

}

@Override

public void onProviderEnabled(String provider) {

// TODO Auto-generated method stub

}

@Override

public void onStatusChanged(String provider, int status, Bundle extras) {

// TODO Auto-generated method stub

}

AndroidManifest.xml

下のコードで、「APIキー」と書かれている部分は、APIキー取得後に修正してください。

xxxxxの部分は、ご自分のパッケージ名で置き換えてください。

<span class="tag">&lt;?xml version="1.0" encoding="utf-8"?&gt;</span>
<span class="tag">&lt;manifest <span class="attr">xmlns:android=</span><span class="value">"http://schemas.android.com/apk/res/android"</span>
    <span class="attr">package=</span><span class="value">"<span style="color: #ff0000;">xxxxx</span>"</span>
    <span class="attr">android:versionCode=</span><span class="value">"1"</span>
    <span class="attr">android:versionName=</span><span class="value">"1.0"</span> &gt;</span>
 
    <span class="tag">&lt;uses-sdk
        <span class="attr">android:minSdkVersion=</span><span class="value">"9"</span>
        <span class="attr">android:targetSdkVersion=</span><span class="value">"17"</span> /&gt;</span>

    <span class="tag">&lt;uses-permission <span class="attr">android:name=</span><span class="value">"<span style="color: #ff0000;">xxxxx</span>.permission.MAPS_RECEIVE"</span>/&gt;</span>

    <span class="tag">&lt;uses-permission <span class="attr">android:name=</span><span class="value">"android.permission.INTERNET"</span>/&gt;</span>
    <span class="tag">&lt;uses-permission <span class="attr">android:name=</span><span class="value">"android.permission.WRITE_EXTERNAL_STORAGE"</span>/&gt;</span>
    <span class="tag">&lt;uses-permission <span class="attr">android:name=</span><span class="value">"com.google.android.providers.gsf.permission.READ_GSERVICES"</span>/&gt;</span>
    <span class="tag">&lt;uses-permission <span class="attr">android:name=</span><span class="value">"android.permission.ACCESS_COARSE_LOCATION"</span>/&gt;</span>
    <span class="tag">&lt;uses-permission <span class="attr">android:name=</span><span class="value">"android.permission.ACCESS_FINE_LOCATION"</span>/&gt;</span>
    <span class="tag">&lt;uses-feature
        <span class="attr">android:glEsVersion=</span><span class="value">"0x00020000"</span>
        <span class="attr">android:required=</span><span class="value">"true"</span>/&gt;</span>
        
    <span class="tag">&lt;application
        <span class="attr">android:allowBackup=</span><span class="value">"true"</span>
        <span class="attr">android:icon=</span><span class="value">"@drawable/ic_launcher"</span>
        <span class="attr">android:label=</span><span class="value">"@string/app_name"</span>
        <span class="attr">android:theme=</span><span class="value">"@style/AppTheme"</span> &gt;</span>

    <span class="tag">&lt;meta-data
        <span class="attr">android:name=</span><span class="value">"com.google.android.maps.v2.API_KEY"</span>
        <span class="attr">android:value=</span><span class="value">"<span style="color: #ff0000;">APIキー</span>"</span> /&gt;</span>
 
        <span class="tag">&lt;activity
            <span class="attr">android:name=</span><span class="value">"<span style="color: #ff0000;">xxxxx</span>.MainActivity"</span>
            <span class="attr">android:label=</span><span class="value">"@string/app_name"</span> &gt;</span>
            <span class="tag">&lt;intent-filter&gt;</span>
                <span class="tag">&lt;action <span class="attr">android:name=</span><span class="value">"android.intent.action.MAIN"</span> /&gt;</span>
 
                <span class="tag">&lt;category <span class="attr">android:name=</span><span class="value">"android.intent.category.LAUNCHER"</span> /&gt;</span>
            <span class="tag">&lt;/intent-filter&gt;</span>
        <span class="tag">&lt;/activity&gt;</span>
    <span class="tag">&lt;/application&gt;</span>
 
<span class="tag">&lt;/manifest&gt;</span>

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="xxxxx"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="9"

android:targetSdkVersion="17" />

<uses-permission android:name="xxxxx.permission.MAPS_RECEIVE"/>

<uses-permission android:name="android.permission.INTERNET"/>

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

<uses-feature

android:glEsVersion="0x00020000"

android:required="true"/>

<application

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<meta-data

android:name="com.google.android.maps.v2.API_KEY"

android:value="APIキー" />

<activity

android:name="xxxxx.MainActivity"

android:label="@string/app_name" >

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

activity_main.xml

<span class="tag">&lt;RelativeLayout <span class="attr">xmlns:android=</span><span class="value">"http://schemas.android.com/apk/res/android"</span>
    <span class="attr">xmlns:tools=</span><span class="value">"http://schemas.android.com/tools"</span>
    <span class="attr">android:layout_width=</span><span class="value">"match_parent"</span>
    <span class="attr">android:layout_height=</span><span class="value">"match_parent"</span>
    <span class="attr">tools:context=</span><span class="value">".MainActivity"</span> &gt;</span>
 
    <span class="tag">&lt;TextView
        <span class="attr">android:id=</span><span class="value">"@+id/textview1"</span>
        <span class="attr">android:layout_width=</span><span class="value">"wrap_content"</span>
        <span class="attr">android:layout_height=</span><span class="value">"wrap_content"</span> /&gt;</span>
 
    <span class="tag">&lt;fragment <span class="attr">xmlns:android=</span><span class="value">"http://schemas.android.com/apk/res/android"</span>
        <span class="attr">android:id=</span><span class="value">"@+id/map"</span>
        <span class="attr">android:layout_width=</span><span class="value">"match_parent"</span>
        <span class="attr">android:layout_height=</span><span class="value">"match_parent"</span>
        <span class="attr">android:layout_below=</span><span class="value">"@id/textview1"</span>
        <span class="attr">class=</span><span class="value">"com.google.android.gms.maps.SupportMapFragment"</span> /&gt;</span>
 
<span class="tag">&lt;/RelativeLayout&gt;
</span>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity" >

<TextView

android:id="@+id/textview1"

android:layout_width="wrap_content"

android:layout_height="wrap_content" />

<fragment xmlns:android="http://schemas.android.com/apk/res/android"

android:id="@+id/map"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_below="@id/textview1"

class="com.google.android.gms.maps.SupportMapFragment" />

</RelativeLayout>

起動時の画面

２Ｄ＜－＞３Ｄ切り替えやフロアプラン、ズームなどについては、
Google Maps Android API V2を使ってみる を参照。

前回から追加された機能

ここをタップするとGPSで現在地を取得し、地図を表示します。

メニュです。

左の「Home」をタップすると、初期位置に復帰します。

右の「Legal Notices」をタップすると、免責事項についての説明を表示します。

その他

UiSettingsで、setRotateGesturesEnabled(true)にしておけば、２本の指で回転させるよう（ちょうどペットボトルのキャップをいじるような動き）にすると、地図が回転します。指が２本であれば、どの指を使ってもいいのですが…。

FRONT

地図と画像のサイト

Google Maps Android API V2を使ってみる２

使い方

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