Google Maps API V2をフラグメントに追加します
Google Maps API V2の地図を断片的に表示しようとしています。 SupportMapFragmentを試しましたが、期待した出力を得ることができません。また、私はこのプラットフォームの初心者です！私が本当に欲しいのは、Google Maps API V2からAndroidの断片にマップを配置する方法です。アイデアや参考文献を共有してください。
前もって感謝します ！
SupportMapFragmentの代わりにMapFragmentを使用し、getActivity()を使用します
これはSupportMapFragmentを使用した基本的な例です：
public class MainActivity extends ActionBarActivity implements OnMapReadyCallback{
private SupportMapFragment map;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
map = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
map.getMapAsync(this);//remember getMap() is deprecated!
}
@Override
public void onMapReady(GoogleMap map) {
map.moveCamera(CameraUpdateFactory.newLatLngZoom(
new LatLng(47.17, 27.5699), 16));
map.addMarker(new MarkerOptions()
.icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_launcher))
.anchor(0.0f, 1.0f) // Anchors the marker on the bottom left
.position(new LatLng(47.17, 27.5699))); //Iasi, Romania
map.setMyLocationEnabled(true);
}
}
レイアウトの参照を変更します。
<fragment
Android:id="@+id/map"
Android:layout_width="match_parent"
Android:layout_height="match_parent"
class="com.google.Android.gms.maps.SupportMapFragment" />
コードは次のとおりです。
public class YourFragment extends Fragment {
// ...
static final LatLng HAMBURG = new LatLng(53.558, 9.927);
static final LatLng KIEL = new LatLng(53.551, 9.993);
private GoogleMap map;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.yourlayout, null, false);
map = ((SupportMapFragment) getFragmentManager().findFragmentById(R.id.map))
.getMap();
Marker hamburg = map.addMarker(new MarkerOptions().position(HAMBURG)
.title("Hamburg"));
Marker kiel = map.addMarker(new MarkerOptions()
.position(KIEL)
.title("Kiel")
.snippet("Kiel is cool")
.icon(BitmapDescriptorFactory
.fromResource(R.drawable.ic_launcher)));
// Move the camera instantly to hamburg with a zoom of 15.
map.moveCamera(CameraUpdateFactory.newLatLngZoom(HAMBURG, 15));
// Zoom in, animating the camera.
map.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);
//...
return v;
}
あなたのレイアウト、
<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" >
<fragment
Android:id="@+id/map"
Android:layout_width="match_parent"
Android:layout_height="match_parent"
class="com.google.Android.gms.maps.SupportMapFragment" />
</RelativeLayout>
マニフェストファイルにも変更を加えます。
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:Android="http://schemas.Android.com/apk/res/Android"
package="com.myapp.Android.locationapi.maps"
Android:versionCode="1"
Android:versionName="1.0" >
<uses-sdk
Android:minSdkVersion="17"
Android:targetSdkVersion="17" />
<permission
Android:name="com.myapp.Android.locationapi.maps.permission.MAPS_RECEIVE"
Android:protectionLevel="signature" />
<uses-feature
Android:glEsVersion="0x00020000"
Android:required="true" />
<uses-permission Android:name="com.myapp.Android.locationapi.maps.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" />
<application
Android:allowBackup="true"
Android:icon="@drawable/ic_launcher"
Android:label="@string/app_name"
Android:theme="@style/AppTheme" >
<activity
Android:name="com.myapp.Android.locationapi.maps.MainActivity"
Android:label="@string/app_name" >
<intent-filter>
<action Android:name="Android.intent.action.MAIN" />
<category Android:name="Android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data
Android:name="com.google.Android.maps.v2.API_KEY"
Android:value="your_apikey" />
</application>
</manifest>
public class DemoFragment extends Fragment {
MapView mapView;
GoogleMap map;
LatLng CENTER = null;
public LocationManager locationManager;
double longitudeDouble;
double latitudeDouble;
String snippet;
String title;
Location location;
String myAddress;
String LocationId;
String CityName;
String imageURL;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
View view = inflater
.inflate(R.layout.fragment_layout, container, false);
mapView = (MapView) view.findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
setMapView();
}
private void setMapView() {
try {
MapsInitializer.initialize(getActivity());
switch (GooglePlayServicesUtil
.isGooglePlayServicesAvailable(getActivity())) {
case ConnectionResult.SUCCESS:
// Toast.makeText(getActivity(), "SUCCESS", Toast.LENGTH_SHORT)
// .show();
// Gets to GoogleMap from the MapView and does initialization
// stuff
if (mapView != null) {
locationManager = ((LocationManager) getActivity()
.getSystemService(Context.LOCATION_SERVICE));
Boolean localBoolean = Boolean.valueOf(locationManager
.isProviderEnabled("network"));
if (localBoolean.booleanValue()) {
CENTER = new LatLng(latitude, longitude);
} else {
}
map = mapView.getMap();
if (map == null) {
Log.d("", "Map Fragment Not Found or no Map in it!!");
}
map.clear();
try {
map.addMarker(new MarkerOptions().position(CENTER)
.title(CityName).snippet(""));
} catch (Exception e) {
e.printStackTrace();
}
map.setIndoorEnabled(true);
map.setMyLocationEnabled(true);
map.moveCamera(CameraUpdateFactory.zoomTo(5));
if (CENTER != null) {
map.animateCamera(
CameraUpdateFactory.newLatLng(CENTER), 1750,
null);
}
// add circle
CircleOptions circle = new CircleOptions();
circle.center(CENTER).fillColor(Color.BLUE).radius(10);
map.addCircle(circle);
map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
}
break;
case ConnectionResult.SERVICE_MISSING:
break;
case ConnectionResult.SERVICE_VERSION_UPDATE_REQUIRED:
break;
default:
}
} catch (Exception e) {
}
}
fragment_layoutで
<com.google.Android.gms.maps.MapView
Android:id="@+id/mapView"
Android:layout_width="match_parent"
Android:layout_height="160dp"
Android:layout_marginRight="10dp" />
2014年10月24日更新これはすべて間違っています。フラグメントにフラグメントを含めるべきではありません。むしろ、SupportMapFragmentを拡張する必要があります。詳細については、このstackoverflowの投稿を参照してください： https://stackoverflow.com/a/19815266/568197
ここに私のonDestroyView（）があります
public void onDestroyView() {
super.onDestroyView();
if (mMap != null) {
getFragmentManager()
.beginTransaction()
.remove(getFragmentManager().findFragmentById(R.id.map))
.commit();
}
}
上記の答えに加えて、マニフェストに次の行も追加する必要がありました
<!-- inside <aplication> tag -->
<meta-data
Android:name="com.google.Android.gms.version"
Android:value="@integer/google_play_services_version" />
また、SupportMapFragmentの代わりにMapFragmentを使用するようにレイアウトを変更しました
<fragment
Android:id="@+id/map"
Android:layout_width="match_parent"
Android:layout_height="match_parent"
class="com.google.Android.gms.maps.SupportMapFragment" />
これが私のコードです。
Googleマップコンソールでプロジェクトを作成し、APIキーを生成します。
そして、build.gradle（アプリレベル）に依存関係を追加します。
compile 'com.google.Android.gms:play-services-maps:10.2.1'
compile 'com.google.Android.gms:play-services-location:10.2.1'
compile 'com.google.Android.gms:play-services-places:10.2.1'
android.manifestに許可を追加することを忘れないでください
<uses-permission Android:name="Android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission Android:name="Android.permission.ACCESS_FINE_LOCATION" />
<uses-permission Android:name="Android.permission.ACCESS_NETWORK_STATE" />
<uses-permission Android:name="Android.permission.INTERNET" />
<uses-permission Android:name="Android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission Android:name="Android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission Android:name="com.google.Android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission Android:name="Android.permission.ACCESS_WIFI_STATE" />
<uses-feature Android:name="Android.hardware.location.gps" Android:required="true"/>
activity_main.xmlを作成します
<FrameLayout xmlns:Android="http://schemas.Android.com/apk/res/Android"
xmlns:tools="http://schemas.Android.com/tools"
Android:id="@+id/container"
Android:layout_width="match_parent"
Android:layout_height="match_parent"
tools:context=".MainActivity"
tools:ignore="MergeRootFrame">
<fragment
class="com.googlelocationmapdemo.FragmentLocation"
Android:layout_width="match_parent"
Android:layout_height="match_parent" />
</FrameLayout>
MainActivity.classから呼び出すものはありません
Fragment_location.xmlを作成します
<LinearLayout xmlns:Android="http://schemas.Android.com/apk/res/Android"
Android:id="@+id/linearMap"
Android:layout_width="match_parent"
Android:layout_height="match_parent">
<fragment xmlns:Android="http://schemas.Android.com/apk/res/Android"
Android:id="@+id/map"
class="com.google.Android.gms.maps.SupportMapFragment"
Android:layout_width="match_parent"
Android:layout_height="match_parent" />
</LinearLayout>
作成FragmentLocation.class
public class FragmentLocation extends Fragment implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener, LocationListener {
public static final String TAG = FragmentLocation.class.getSimpleName();
public static final int REQUEST_CODE_FOR_PERMISSIONS = 1;
GoogleApiClient mGoogleApiClient;
LatLng mLatLng;
GoogleMap mGoogleMap;
Marker mCurrLocationMarker;
private LinearLayout linearMap;
Location mLastLocation;
LocationManager locationManager;
boolean statusOfGPS;
private Dialog mDialogGPS;
View view;
LocationRequest mLocationRequest;
SupportMapFragment mFragment;
FragmentManager fragmentManager;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view=inflater.inflate(R.layout.fragment_location,container,false);
fragmentManager=getChildFragmentManager();
mFragment = (SupportMapFragment)fragmentManager.findFragmentById(R.id.map);
mFragment.getMapAsync(this);
if (!isGooglePlayServicesAvailable()) {
Toast.makeText(getActivity(), "play services not available", Toast.LENGTH_SHORT).show();
}
locationManager = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
statusOfGPS = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
return view;
}
@Override
public void onConnected(Bundle bundle) {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(1000); //5 seconds
mLocationRequest.setFastestInterval(2000); //3 seconds
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(getActivity(),
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
@Override
public void onLocationChanged(Location location) {
mLastLocation = location;
if (mCurrLocationMarker != null) {
mCurrLocationMarker.remove();
}
mLatLng = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(mLatLng);
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_Magenta));
mCurrLocationMarker = mGoogleMap.addMarker(markerOptions);
mGoogleMap.moveCamera(CameraUpdateFactory.newLatLng(mLatLng));
// Zoom in the Google Map
mGoogleMap.animateCamera(CameraUpdateFactory.zoomTo(15));
}
@Override
public void onMapReady(GoogleMap googleMap) {
mGoogleMap = googleMap;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (getActivity().checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION)
== PackageManager.PERMISSION_GRANTED &&
getActivity().checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
buildGoogleApiClient();
mGoogleMap.setMyLocationEnabled(true);
} else {
requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION
, Manifest.permission.ACCESS_FINE_LOCATION},
REQUEST_CODE_FOR_PERMISSIONS);
}
} else {
buildGoogleApiClient();
mGoogleMap.setMyLocationEnabled(true);
}
//show dialog when click on location top-right side located on map.
mGoogleMap.setOnMyLocationButtonClickListener(new GoogleMap.OnMyLocationButtonClickListener() {
@Override
public boolean onMyLocationButtonClick() {
statusOfGPS = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (!statusOfGPS) {
turnOnGps();
} else {
getCurrentLocation(mLastLocation);
}
return false;
}
});
}
private boolean isGooglePlayServicesAvailable() {
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getActivity());
if (ConnectionResult.SUCCESS == status) {
return true;
} else {
GooglePlayServicesUtil.getErrorDialog(status, getActivity(), 0).show();
return false;
}
}
@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case REQUEST_CODE_FOR_PERMISSIONS:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
if (getActivity().checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION)
== PackageManager.PERMISSION_GRANTED &&
getActivity().checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
if (mGoogleApiClient == null) {
buildGoogleApiClient();
}
mGoogleMap.setMyLocationEnabled(true);
}
} else {
if (!(shouldShowRequestPermissionRationale(Manifest.permission.ACCESS_COARSE_LOCATION)) && (!(shouldShowRequestPermissionRationale(Manifest.permission.ACCESS_FINE_LOCATION)))) {
Snackbar snackbar = Snackbar.make(linearMap, "Never asked"
, Snackbar.LENGTH_INDEFINITE);
snackbar.setAction("Allow", new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent();
intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
Uri uri = Uri.fromParts("package", getActivity().getPackageName(), null);
intent.setData(uri);
startActivity(intent);
}
});
snackbar.show();
}
}
break;
}
}
private void getCurrentLocation(Location location) {
mLastLocation = location;
if (mCurrLocationMarker != null) {
mCurrLocationMarker.remove();
}
if (locationManager != null) {
if (ContextCompat.checkSelfPermission(getActivity(),
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
mLastLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);//getting last location
}
if (mLastLocation != null) {
if (mGoogleMap != null) {
Log.d("activity", "LOC by Network");
mLatLng = new LatLng(mLastLocation.getLatitude(), mLastLocation.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(mLatLng);
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_Magenta));
mCurrLocationMarker = mGoogleMap.addMarker(markerOptions);
mGoogleMap.moveCamera(CameraUpdateFactory.newLatLng(mLatLng));
mGoogleMap.animateCamera(CameraUpdateFactory.zoomTo(15));
}
}
}
}
private void turnOnGps() {
if (mGoogleMap != null) {
mGoogleMap.clear();
}
statusOfGPS = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);//getting status of gps whether gps is on or off.
mDialogGPS = new Dialog(getActivity(), R.style.MyDialogTheme);
mDialogGPS.requestWindowFeature(Window.FEATURE_NO_TITLE);
mDialogGPS.setContentView(R.layout.dialog_turnongps);
TextView txtCancel = (TextView) mDialogGPS.findViewById(R.id.txtCancel);
TextView txtOK = (TextView) mDialogGPS.findViewById(R.id.txtSetting);
ImageView imgLocation = (ImageView) mDialogGPS.findViewById(R.id.imgLocation);
imgLocation.setImageResource(R.drawable.ic_location_my);
txtCancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mDialogGPS.dismiss();
//finish();
if (!statusOfGPS) {
getCurrentLocationByDefault();
} else {
getCurrentLocation(mLastLocation);
}
}
});
txtOK.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//It is use to redirect to setting->location to turn on gps when press ok.
startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
mDialogGPS.dismiss();
if (!statusOfGPS) {
getCurrentLocationByDefault();
} else {
getCurrentLocation(mLastLocation);
}
}
});
mDialogGPS.show();
}
private void getCurrentLocationByDefault() {
if (mCurrLocationMarker != null) {
mCurrLocationMarker.remove();
}
if (mGoogleMap != null) {
LatLng xFrom1 = new LatLng(0.0, 0.0);
mGoogleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(xFrom1, (float) 0.0));
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(xFrom1);
markerOptions.icon(BitmapDescriptorFactory.fromResource(R.drawable.icon_taxi));
mCurrLocationMarker = mGoogleMap.addMarker(markerOptions);
} else {
Log.i("MainActivity", "getCurrentLocationByDefault else");
}
}
@Override
public void onResume() {
super.onResume();
statusOfGPS = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (mDialogGPS != null) {
if (mDialogGPS.isShowing()) {
mDialogGPS.dismiss();
}
}
if (!statusOfGPS) {
turnOnGps();
} else {
getCurrentLocation(mLastLocation);
}
}
protected synchronized void buildGoogleApiClient() {
if (mGoogleApiClient != null) {
mGoogleApiClient = null;
}
mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiClient.connect();
}
}
dailog_gps.xmlを作成します
<LinearLayout xmlns:Android="http://schemas.Android.com/apk/res/Android"
Android:layout_width="match_parent"
Android:layout_height="wrap_content"
Android:padding="20dp"
Android:orientation="vertical">
<LinearLayout
Android:layout_width="wrap_content"
Android:layout_height="wrap_content"
Android:orientation="horizontal">
<TextView
Android:id="@+id/txtPhoneNumber"
Android:layout_width="wrap_content"
Android:layout_height="wrap_content"
Android:text="Use Location?"
Android:textColor="@Android:color/black"
Android:textSize="16sp"
/>
</LinearLayout>
<LinearLayout
Android:layout_marginTop="15dp"
Android:layout_width="wrap_content"
Android:layout_height="wrap_content"
Android:orientation="horizontal">
<TextView
Android:layout_width="0dp"
Android:layout_height="wrap_content"
Android:layout_weight="1"
Android:text="This app wants to change your \ndevice settings:"
Android:textSize="14sp" />
</LinearLayout>
<LinearLayout
Android:layout_marginTop="10dp"
Android:weightSum="2"
Android:gravity="center"
Android:orientation="horizontal"
Android:layout_width="match_parent"
Android:layout_height="wrap_content">
<ImageView
Android:id="@+id/imgLocation"
Android:layout_weight="1"
Android:layout_gravity="top"
Android:layout_width="wrap_content"
Android:layout_height="wrap_content" />
<TextView
Android:layout_weight="1"
Android:layout_width="match_parent"
Android:layout_height="wrap_content"
Android:text="Use GPS, Wi-Fi and mobile \nnetwork for location"
Android:layout_marginLeft="20dp"
Android:textSize="12sp" />
</LinearLayout>
<LinearLayout
Android:layout_width="wrap_content"
Android:layout_height="wrap_content"
Android:layout_gravity="right"
Android:orientation="horizontal"
Android:layout_marginTop="20dp">
<TextView
Android:id="@+id/txtCancel"
Android:layout_width="wrap_content"
Android:layout_height="wrap_content"
Android:text="NO"
Android:layout_marginRight="30dp"
Android:textSize="16sp" />
<TextView
Android:id="@+id/txtSetting"
Android:layout_width="wrap_content"
Android:layout_height="wrap_content"
Android:text="YES"
Android:layout_marginRight="30dp"
Android:textSize="16sp" />
</LinearLayout>
</LinearLayout>
これがあなたを助けることを願っています:-)
問題に直面しているすべての友人のために：-
Java.lang.NullPointerException: Attempt to invoke virtual method 'com.google.Android.gms.maps.GoogleMap com.google.Android.gms.maps.SupportMapFragment.getMap()
コードを使用してGoogleMapを統合してみてください
FragmentManager fm = getChildFragmentManager();
googleMap = ((SupportMapFragment)fm.findFragmentById(R.id.googleMap)).getMap();
Google MapsのFragment内でMapViewを使用するAndroid API v2.0
パブリッククラスMapFragment extends Fragment {
MapView m;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// inflat and return the layout
View v = inflater.inflate(R.layout.map_fragment, container, false);
m = (MapView) v.findViewById(R.id.mapView);
m.onCreate(savedInstanceState);
return v;
}
@Override
public void onResume() {
super.onResume();
m.onResume();
}
@Override
public void onPause() {
super.onPause();
m.onPause();
}
@Override
public void onDestroy() {
super.onDestroy();
m.onDestroy();
}
@Override
public void onLowMemory() {
super.onLowMemory();
m.onLowMemory();
}
}
私は同じ問題を抱えていますが、このコードを使用しますが、まだこのエラーが発生します：フラグメントcom.google.Android.gsm.SupportMapFragmentをインスタンス化できません：クラス名が存在し、パブリックであり、空のコンストラクトがあることを確認するか、パブリック
私はここからそれを解決しました： ViewPagerを使用してGoogle Maps V2をフラグメントに配置する方法
この例は、Android studio、マップアクティビティでは何も変更する必要はありません。マップアクティビティに一致するレイアウトファイルのコンテキストのみを変更する必要はありません。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:Android="http://schemas.Android.com/apk/res/Android"
Android:orientation="vertical"
Android:layout_width="fill_parent"
Android:layout_height="fill_parent"
Android:weightSum="1">
<fragment xmlns:Android="http://schemas.Android.com/apk/res/Android"
xmlns:map="http://schemas.Android.com/apk/res-auto"
xmlns:tools="http://schemas.Android.com/tools"
Android:id="@+id/map"
Android:name="com.google.Android.gms.maps.SupportMapFragment"
Android:layout_width="match_parent"
Android:layout_height="300dp"
tools:context="com.gearwell.app.gpsmaps02.Gpsenmapa"
/>
<LinearLayout
Android:id="@+id/layButtonH"
Android:layout_height="150dp"
Android:layout_marginTop="50dp"
Android:layout_width="fill_parent"
Android:gravity="center"
Android:layout_weight="0.15">
<Button
Android:layout_width="wrap_content"
Android:layout_height="wrap_content"
Android:text="Obtener Ubicacion"
Android:id="@+id/btnLocation"
Android:onClick="onClick"/>
</LinearLayout>
</LinearLayout>
Android studioを使用している場合、Google MapsActivityのデフォルトのマップフラグメントを作成し、マップAPIキーを生成して作業を行います......
SupportMapFragment mapFragment =（SupportMapFragment）getSupportFragmentManager（）。findFragmentById（R.id.map）; mapFragment.getMapAsync（this）;
そしてオーバーライドメソッド
public void onMapReady（GoogleMap googleMap）{
mMap = googleMap;
LatLng map = new LatLng(lat, lon);
mMap.addMarker(new MarkerOptions().position(map).title("your title"));
mMap.animateCamera(CameraUpdateFactory.newLatLng(map));
mMap.setMapType(GoogleMap.MAP_TYPE_NONE);
}