新应用知识整理-应用中调用Google地图并实现定位

前言：

由于国内环境的一些限制，想在国内使用谷歌地图要越过重重困境。

1、应用中调用谷歌地图，要求手机必须安装有最新版本的Google play services应用，并且已经登录了google账号。

这对于国产手机来说有些困难，必须root才能正确安装该应用。

2、要想地图能正常显示出来，手机还有FanQiang。

3、开发者要用自己的google账号到官网申请Google Android Api

申请api的顺序：

（1）使用自己的账号登录https://code.google.com/apis/console/，并创建一个应用

（2）开启这个账号中的android api服务

（3）在命令行中使用命令（keytool -list -alias 昵称 -keystore debug.keystore文件名）（此命令是jdk自带的）获取自己创建的用于给要发布的应用签名的签名文件对于的指纹

（4）根据得到的指纹和应用的包名申请Google map api（Android，也叫凭证）

正文：

先贴出我应用内调用Google地图的代码：

（代码中的定位功能也使用了Google提供的定位服务，免去了我们本地区分使用网络定位还是GPS定位的麻烦。）

import android.app.AlertDialog;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.graphics.Color;import android.net.Uri;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.Toast;import com.asiaweiluy.live.v1.Unit.LocationMap.HttpUtil_Map;import com.asiaweiluy.live.v1.MyApplication;import com.asiaweiluy.live.v1.Unit.SharedPreference.ForDataStoreAndRead;import com.asiaweiluy.live.v1.R;import android.app.Dialog;import android.content.ComponentName;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import android.location.Location;import android.location.LocationManager;import android.provider.Settings;import android.view.InflateException;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import com.google.android.gms.common.ConnectionResult;import com.google.android.gms.common.GooglePlayServicesUtil;import com.google.android.gms.common.api.GoogleApiClient;import com.google.android.gms.location.LocationListener;import com.google.android.gms.location.LocationRequest;import com.google.android.gms.location.LocationServices;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.UiSettings;import com.google.android.gms.maps.model.BitmapDescriptorFactory;import com.google.android.gms.maps.model.Circle;import com.google.android.gms.maps.model.CircleOptions;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 org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import java.net.URISyntaxException;import java.util.ArrayList;import java.util.List;public class LocationFragment extends Fragment implements OnMapReadyCallback,GoogleApiClient.ConnectionCallbacks,        GoogleApiClient.OnConnectionFailedListener,        LocationListener {    private GoogleApiClient mGoogleApiClient;    public static final int SHOW_LOCATION = 0;    private LocationManager locationManager;    private String provider=null;    private Location location=null;    private SupportMapFragment mapFragment;    private Location mLastLocation;    private GoogleMap mMap=null;    private Marker melbourne;//自己的位置的marker    private Marker selectedMarker;//选中的位置的marker    private UiSettings mUiSettings;    private ArrayList<Marker> mBranchMarkers=new ArrayList();    private ArrayList<Marker> mAgentMarkers=new ArrayList();    private CheckBox mBranch,mAgency;    private static View view;    private boolean flag=true;//用于判断是不是第一次调用onCreateView函数加载该fragment界面，如果不是第一次就不需要再进行一些地图中的部件的加载    private List<ResolveInfo> mAllApps;    private PackageManager pm;    private ListView softlist = null;    private Context mContext;    private Dialog dialog;    private Circle mCircle;    private boolean mRequestingLocationUpdates=false,isTheFirstTime=true;//用于判断是不是第一次获取位置更新，用于显示地图    private String Branch_result=null,Agency_result=null;    private static final LocationRequest REQUEST = LocationRequest.create()//这里设置我们需要的定位精度等信息            .setInterval(5000)         // 5 seconds            .setFastestInterval(16)    // 16ms = 60fps            .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);    @Override    public void onCreate(Bundle savedInstanceState){        super.onCreate(savedInstanceState);        mContext=getActivity();        AlertDialog.Builder bulider = new AlertDialog.Builder(mContext);        int status=GooglePlayServicesUtil.isGooglePlayServicesAvailable(mContext);//此状态用于判断手机中Google play services的状态。当前只需要区分手机是否安装了该应用。status==1则表明未安装        switch (status){            case 1://返回1，表明当前没有安装google play services                    bulider.setMessage(R.string.Google_play_service_missing);//Google Play services missing when getting application info                    bulider.setCancelable(false);                    bulider.setPositiveButton(getText(R.string.Login_dialog_sure).toString(), new DialogInterface.OnClickListener() {                        public void onClick(DialogInterface dialog, int which) {                            getActivity().finish();                        }                    }).show();                break;    }        setRetainInstance(true);        mGoogleApiClient = new GoogleApiClient.Builder(getActivity())//这里设置启用的google服务和我们代码中的监听器                .addApi(LocationServices.API)                .addConnectionCallbacks(this)                .addOnConnectionFailedListener(this)                .build();    }

 @Override    public View onCreateView(LayoutInflater inflater,@Nullable ViewGroup container,@Nullable Bundle savedInstanceState) {        if (view != null) {            flag=false;            ViewGroup parent = (ViewGroup) view.getParent();            if (parent != null)                parent.removeView(view);        }        try {            //LayoutInflater作用是将layout的xml布局文件实例化为View类对象。            view = inflater.inflate(R.layout.location_fragment, container, false);            mapFragment = (SupportMapFragment)getChildFragmentManager().findFragmentById(R.id.map);            Log.d("sd", "Fragment is ready  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");            mapFragment.getMapAsync(this);        } catch (InflateException e) {            e.printStackTrace();            //当map  api  key 不存在时会发生这种异常；        /* map is already there, just return view as it is */        }        dialog = new Dialog(mContext);        dialog.setContentView(R.layout.mapslist);        softlist= (ListView) dialog.findViewById(R.id.maps_list);//用于显示应用的列表        dialog.setTitle(R.string.map_choose_app);        mBranch= (CheckBox) view.findViewById(R.id.checkBox_branches);        mAgency=(CheckBox) view.findViewById(R.id.checkBox_agency);        mBranch.setChecked(true);        mAgency.setChecked(true);        mBranch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {            @Override            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {                if (isChecked) {                    for (int i = 0; i < mBranchMarkers.size(); i++) {                        mBranchMarkers.get(i).setVisible(true);                    }                } else {                    for (int i = 0; i < mBranchMarkers.size(); i++) {                        mBranchMarkers.get(i).setVisible(false);                    }                }            }        });        mAgency.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {            @Override            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {                if (isChecked) {                    for (int i = 0; i < mAgentMarkers.size(); i++) {                        mAgentMarkers.get(i).setVisible(true);                    }                } else {                    for (int i = 0; i < mAgentMarkers.size(); i++) {                        mAgentMarkers.get(i).setVisible(false);                    }                }            }        });        locationManager = (LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);//获取位置管理器实例，访问位置管理器        List<String> providerList = locationManager.getProviders(true);        if (providerList.contains(LocationManager.GPS_PROVIDER)) {        } else {            // 当没有可用的位置提供器时，弹出Toast提示用户            Toast.makeText(getActivity(),R.string.map_open_GPS, Toast.LENGTH_SHORT).show();            Log.d("sdf", "---------------------No  provider  -----------------------" + provider);            //请用户去打开位置服务            Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);            startActivityForResult(intent, 0);        }

//下面这一段代码是用来检测手机中安装的地图应用，以打开应用进行路线索引。  

Uri mUri = Uri.parse("geo:" + 12.625335 + "," + 104.523967);//打开地图应用列表        Intent it = new Intent(Intent.ACTION_VIEW, mUri);        pm=getActivity().getPackageManager();        ComponentName cn =it.resolveActivity(pm);        if (cn==null){//如果没有能处理的应用就打开应用商店去寻找            Uri marketUri=Uri.parse("market://search?q=pname:com.myapp.packagename");            Intent marketIntent=new Intent(Intent.ACTION_VIEW).setData(marketUri);            if (marketIntent.resolveActivity(pm)!=null){                startActivity(marketIntent);            }else Log.d("ds","Market client not available");//如果没有安装应用商店        }else {            //如果用户安装有地图应用            mAllApps=pm.queryIntentActivities(it,0);            for (ResolveInfo res:mAllApps){//打印一下                Log.d("ds","app info-------------------------"+res.activityInfo.packageName+"  "+res.activityInfo.name);            }            softlist.setAdapter(new MyAdapter(mContext, mAllApps));//用于显示提取到的应用            softlist.setOnItemClickListener(new AdapterView.OnItemClickListener() {                @Override                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                    ResolveInfo res = mAllApps.get(position);                    //该应用的包名和主Activity                    String pkg = res.activityInfo.packageName;                    String cls = res.activityInfo.name;                    switch (pkg) {                        case "com.google.android.apps.maps":                        {  Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse("http://ditu.google.cn/maps?f=d&source=s_d&saddr=" + location.getLatitude() + "," + location.getLongitude() + "&daddr=" + selectedMarker.getPosition().latitude  + "," + selectedMarker.getPosition().longitude + "&hl=zh"));                            //如果强制使用googlemap地图客户端打开，就加下面两句                            i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK & Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);                            Log.d("ds", " -------google  map     !!!!!!!!!!!-------------------------");                            i.setClassName(pkg, cls);                            startActivity(i);                            selectedMarker.hideInfoWindow();                            dialog.dismiss();                            break;}                        case "com.baidu.BaiduMap":                            try {                                Intent i = Intent.getIntent("intent://map/direction?origin=latlng:"+selectedMarker.getPosition().latitude+","+selectedMarker.getPosition().longitude+"|name:我家&destination=大雁塔&mode=driving®ion=西安&referer=Autohome|GasStation#Intent;scheme=bdapp;package=com.baidu.BaiduMap;end");                                Log.d("ds", " -------baidu map  !!!!!!!!!!!-------------------------");                               Log.e("GasStation", "没有安装百度地图客户端") ;                                }*/                                startActivity(i); //启动调用                                selectedMarker.hideInfoWindow();                                dialog.dismiss();                                break;                            } catch (URISyntaxException e) {                                e.printStackTrace();                            }                        default:                            Toast.makeText(getActivity(),R.string.map_app_support,Toast.LENGTH_SHORT).show();                            selectedMarker.hideInfoWindow();                            dialog.dismiss();                            Log.d("ds", " -------coming soon !!!!!!!!!!!-------------------------");                    }                }            });}        return view;    }

 @Override    public void onMapReady(GoogleMap map) {//当地图加载完毕就会调用该函数        Log.d("sd","~~~~~~~~on Map Readyed   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");        mMap = map;        if (flag){            if (location==null){                String filename="LocationFile";                String field="MyLocation_latitude";                String mylocation_latitude= ForDataStoreAndRead.getSharePreString(mContext, filename, field);                String field1="MyLocation_longitude";                String mylocation_longitude=ForDataStoreAndRead.getSharePreString(mContext,filename,field1);                Log.d("sd","------------保存的位置信息：");                Log.d("sd","------------latitude："+mylocation_latitude);                Log.d("sd","------------longitude："+mylocation_longitude);                map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(Double.parseDouble(mylocation_latitude), Double.parseDouble(mylocation_longitude)), 12));            }else {                LatLng myposition=new LatLng(location.getLatitude(), location.getLongitude());                melbourne=  mMap.addMarker(new MarkerOptions()                        .position(myposition)                        .title(getString(R.string.map_mylocation))                        .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));                mCircle= map.addCircle(new CircleOptions()                        .center(myposition)                        .radius(5000)                        .strokeColor(Color.BLUE)                        .fillColor(Color.argb(50, 102, 255, 255)).strokeWidth(1));                map.moveCamera(CameraUpdateFactory.newLatLngZoom(myposition, 12));            }            map.setMyLocationEnabled(false);//添加我的位置按钮，并使我的位置可见            map.setMyLocationEnabled(true);            map.setInfoWindowAdapter(new CustomInfoWindowAdapter());            mUiSettings = mMap.getUiSettings();            mUiSettings.setZoomControlsEnabled(true);//大小伸缩            mUiSettings.setCompassEnabled(true);//指南针            mUiSettings.setMapToolbarEnabled(false);//点击marker时右下角的弹出窗口            new Thread(new Runnable() {//启动线程以获取服务器返回的信息                @Override                public void run() {                    Log.d("sdf","------------------开始测试登录状态-----------------------");                    Branch_result= HttpUtil_Map.postJSONtoInternet("这里是服务器的url和传递的JSON数据");                    if (Branch_result!=null)                    { Message message=new Message();                        message.what=3;                        LocationParseHandler.sendMessage(message);}                    else {                        Message message=new Message();                        message.what=4;                        LocationParseHandler.sendMessage(message);                    }                }            }).start();            new Thread(new Runnable() {                @Override                public void run() {                    Log.d("sdf","------------------开始测试登录状态-----------------------");                    Agency_result= HttpUtil_Map.postJSONtoInternet("这里是服务器的url和传递的JSON数据");                    if (Agency_result!=null)                    { Message message=new Message();                        message.what=1;                        LocationParseHandler.sendMessage(message);                    }                    else {                        Message message=new Message();                        message.what=2;                        LocationParseHandler.sendMessage(message);                    }                }            }).start();        }        mMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {            @Override            public boolean onMarkerClick(Marker marker) {                marker.showInfoWindow();                return false;            }        });        mMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {            @Override            public void onInfoWindowClick(Marker marker) {                selectedMarker=marker;                dialog.show();            }        });    }

//下面的代码是我们实现的接口中的回调函数用于与google服务的连接，以及位置的更新

@Overridepublic void onConnected(Bundle bundle) {    Log.d("sd","on Connected ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");    startLocationUpdates();//开始更新位置信息    location = LocationServices.FusedLocationApi.getLastLocation(            mGoogleApiClient);}@Overridepublic void onConnectionSuspended(int i) {}@Overridepublic void onConnectionFailed(ConnectionResult connectionResult) {}@Overridepublic void onLocationChanged(Location llocation) {    Log.d("sd","~~~~~~~~~~~~~~~on LocationChanged ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");    if (isTheFirstTime) {        location = llocation;        if (mMap!=null) {            LatLng myposition = new LatLng(location.getLatitude(), location.getLongitude());            melbourne= mMap.addMarker(new MarkerOptions()                    .position(myposition)                    .title(getString(R.string.map_mylocation))                    .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));            mCircle= mMap.addCircle(new CircleOptions()                    .center(myposition)                    .radius(5000)                    .strokeColor(Color.BLUE)                    .fillColor(Color.argb(50, 102, 255, 255)).strokeWidth(1));            mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(myposition, 12));            mMap.setMyLocationEnabled(false);//添加我的位置按钮，并使我的位置可见            Log.d("sd", "~~~~~~~~~~~~~~~on LocationChanged ~~~~~~~~~~~~~~~~~~~~~~~~=========isTheFirstTime isTheFirstTime========~~~~~");            mMap.setMyLocationEnabled(true);        }        isTheFirstTime=false;    }else {        mCircle.setVisible(false);        melbourne.setVisible(false);        LatLng myposition = new LatLng(location.getLatitude(), location.getLongitude());        melbourne = mMap.addMarker(new MarkerOptions()                .position(myposition)                .title(getString(R.string.map_mylocation))                .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)));        mCircle = mMap.addCircle(new CircleOptions()                .center(myposition)                .radius(5000)                .strokeColor(Color.BLUE)                .fillColor(Color.argb(50, 102, 255, 255)).strokeWidth(1));    }}

//下面这段代码是在屏幕中央显示的可以启用的第三方map用于列表的adapter的定制

class ViewHolder {    ImageView appIcon;    TextView tvAppLabel;    TextView tvPkgName;    public ViewHolder(View view) {        this.appIcon = (ImageView) view.findViewById(R.id.img);        this.tvAppLabel = (TextView) view.findViewById(R.id.name);        this.tvPkgName = (TextView) view.findViewById(R.id.desc);    }}class MyAdapter extends BaseAdapter {    private Context context;    private List<ResolveInfo> resInfo;    private ResolveInfo res;    private LayoutInflater infater=null;    public MyAdapter(Context context, List<ResolveInfo> resInfo) {        this.context = context;        this.resInfo = resInfo;        infater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);    }    @Override    public int getCount() {        return resInfo.size();    }    @Override    public Object getItem(int arg0) {        return arg0;    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        //  View view = null;        ViewHolder holder = null;        if (convertView == null || convertView.getTag() == null) {            convertView = infater.inflate(R.layout.soft_row, null);            holder = new ViewHolder(convertView);            convertView.setTag(holder);        }        else{            //     view = convertView ;            holder = (ViewHolder) convertView.getTag() ;        }        //获取应用程序包名，程序名称，程序图标        res = resInfo.get(position);        Log.d("sd","~~~~~~~~~~~~~~~~~-------------------------------------------");        holder.appIcon.setImageDrawable(res.loadIcon(pm));        holder.tvAppLabel.setText(res.loadLabel(pm).toString());        holder.tvPkgName.setText(res.activityInfo.packageName+'\n'+res.activityInfo.name);        return convertView;    }}

public void onDestroy() {    super.onDestroy();    mGoogleApiClient.disconnect();    Log.d("sdf", "----------- onDestroy :---------");  }@Overridepublic void onResume() {    super.onResume();    if (!mGoogleApiClient.isConnected())        mGoogleApiClient.connect();    if (mGoogleApiClient.isConnected() && !mRequestingLocationUpdates) {        startLocationUpdates();//开始更新位置信息    }}@Overridepublic void onPause() {    super.onPause();    if (location!=null){//因为定位会比较慢，为了提高用户体验，保存当前用户的位置信息，用于下次启动时使用        String filename="LocationFile";        String field="MyLocation_latitude";        String mylocation_latitude=location.getLatitude()+"";        ForDataStoreAndRead.putSharePreString(mContext, filename, field, mylocation_latitude);        String field1="MyLocation_longitude";        String mylocation_longitude=location.getLongitude()+"";        ForDataStoreAndRead.putSharePreString(mContext, filename, field1, mylocation_longitude);        }    stopLocationUpdates();//停止更新位置信息}protected void startLocationUpdates() {    LocationServices.FusedLocationApi.requestLocationUpdates(            mGoogleApiClient, REQUEST, this);    mRequestingLocationUpdates=true;//标志着已经开启位置更新}protected void stopLocationUpdates() {    if (mGoogleApiClient.isConnected()) {        LocationServices.FusedLocationApi.removeLocationUpdates(                mGoogleApiClient, this);        mRequestingLocationUpdates = false;//标志着已经开启位置更新    }}

public void parseBranchJSONObject(String json){//对服务器端的分行地址JSON进行解析    try {        JSONObject jsonObject =new JSONObject(json);        JSONArray jsonArray = jsonObject.getJSONArray("table_data");        for(int i=0;i<jsonArray.length();i++) {            JSONObject jsonObject2 = (JSONObject) jsonArray.opt(i);                       if (!jsonObject2.optString("user_longitude").equals("null")&&!jsonObject2.optString("user_longitude").equals("")){                               mBranchMarkers.add(mMap.addMarker(new MarkerOptions()                        .position(new LatLng(Double.valueOf(jsonObject2.optString("user_longitude")), Double.parseDouble(jsonObject2.optString("user_latitude"))))                        .title(jsonObject2.optString("user_nickname"))                        .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ROSE))                        .snippet("Branch "+"\r\n"+"Phone: "+jsonObject2.optString("user_contact_phone").replace("/","\n            ")+"\r\n"+"Location: "+jsonObject2.getString("user_business_location"))));            }        }    } catch (JSONException e) {        e.printStackTrace();    }}public void parseAgentJSONObject(String json){//对服务器端的代理地址JSON进行解析    try {        JSONObject jsonObject =new JSONObject(json);        JSONArray jsonArray = jsonObject.getJSONArray("table_data");        /*Log.d("sd", "----怎么会是null呢------" + jsonArray);*/        for(int i=0;i<jsonArray.length();i++) {            JSONObject jsonObject2 = (JSONObject) jsonArray.opt(i);            if (!jsonObject2.optString("user_longitude").equals("null")){                mAgentMarkers.add(mMap.addMarker(new MarkerOptions()                        .position(new LatLng(Double.valueOf(jsonObject2.getString("user_longitude")), Double.parseDouble(jsonObject2.getString("user_latitude"))))                        .title(jsonObject2.getString("user_nickname"))                        .snippet("Agent "+"\r\n"+"Phone: "+jsonObject2.getString("user_contact_phone").replace("/", "\n            ")+"\r\n"+"Location: "+jsonObject2.getString("user_business_location"))));            }        }    } catch (JSONException e) {        e.printStackTrace();    }}

 class CustomInfoWindowAdapter implements GoogleMap.InfoWindowAdapter {//自定义的信息窗口布局，因为默认的信息窗详细信息也是单行显示的        private final View mContents;        CustomInfoWindowAdapter() {//填充的布局中只是两个textview而已            mContents = getActivity().getLayoutInflater().inflate(R.layout.custom_info_contents, null);        }        @Override        public View getInfoWindow(Marker marker) {            return null;        }        @Override        public View getInfoContents(Marker marker) {            String title = marker.getTitle();            Log.d("sd", "----222222-------------title------"+title);            TextView titleUi = ((TextView) mContents.findViewById(R.id.title));            titleUi.setText(title);            String snippet = marker.getSnippet();            TextView snippetUi = ((TextView) mContents.findViewById(R.id.snippet));            snippetUi.setText(snippet);            return mContents;        }    }    Handler  LocationParseHandler = new Handler(){        public void handleMessage(Message msg){            switch (msg.what){                case 1:                    parseAgentJSONObject(Agency_result);                    break;                case 2:                    Toast.makeText(getActivity(),"null result of agent data received from the server", Toast.LENGTH_SHORT).show();                    break;                case 3:                    parseBranchJSONObject(Branch_result);                    break;                case 4:                    Toast.makeText(getActivity(),"null result of Branch data received from the server", Toast.LENGTH_SHORT).show();                    break;                default:                    break;            }        }    };}

备注：因为我的地图是显示在fragment中的，这可能会与要直接在activity中显示有些不同。但各种功能的使用是不变的。

看了上面完整的代码，你可能会发现，我们辛辛苦苦申请的google map api用在哪儿？

在android studio中，他被用在AndroidManifest.xml中

<meta-data    android:name="com.google.android.maps.v2.API_KEY"    android:value="你的GoogleMapApi key" />

刚接触google地图的开发，写的不好的或不明白的地方还请大家不吝赐教。