我刚刚开始了一个新项目并按照该链接中的说明进行操作.它对我有用.需要注意的一件事是，我无需更改 MainActivity.java 中的任何内容.

I just started a new project and followed the instructions from that link. It worked for me. One thing to note is that I didn't have to change anything in MainActivity.java.

我建议在 Android Studio 中启动一个新项目，选择Blank Activity".修改 AndroidManifest.xml、build.gradle 和 activity_main.xml，但将 MainActivity.java 中的所有内容保留为是.

I would recommend starting a new project in Android Studio, select "Blank Activity". Modify AndroidManifest.xml, build.gradle, and activity_main.xml, but leave everything in MainActivity.java as is.

需要注意的一点是，从 SDK Manager 中，您需要安装:

One thing to note is that from the SDK Manager, you need to install:

• Android 支持库
• Android 支持库
• Google Play 服务
• Google 存储库

来自我的工作示例:

在 build.gradle 中:

In build.gradle:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:22.0.0'

    compile 'com.google.android.gms:play-services-maps:7.0.0'
}

AndroidManifest.xml:

AndroidManifest.xml:

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

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


<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".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="*********************"/>

    <meta-data android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />

</application>

我在 MainActivity 中设置了一个 Fragment.

I got it set up with a Fragment within MainActivity.

activity_main.xml(这里没什么特别的):

activity_main.xml (nothing special here):

<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_main.xml:

fragment_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<com.google.android.gms.maps.MapView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mapView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

MainActivity.java:

MainActivity.java:

import android.support.v7.app.ActionBarActivity;
import android.support.v4.app.Fragment;
import android.view.Menu;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.location.Location;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.MapsInitializer;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;


public class MainActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new PlaceholderFragment())
                    .commit();
        }
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }


    public static class PlaceholderFragment extends Fragment {

        MapView mMapView;
        private GoogleMap googleMap;
        Location location;

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            // inflate and return the layout
            View v = inflater.inflate(R.layout.fragment_main, container,
                    false);
            mMapView = (MapView) v.findViewById(R.id.mapView);
            mMapView.onCreate(savedInstanceState);

            mMapView.onResume();// needed to get the map to display immediately

            try {
                MapsInitializer.initialize(getActivity().getApplicationContext());
            } catch (Exception e) {
                e.printStackTrace();
            }
            googleMap = mMapView.getMap();
            googleMap.setMyLocationEnabled(true);

            location = googleMap.getMyLocation();

            if (location != null) {

                // latitude and longitude
                LatLng lat = new LatLng(location.getLatitude(), location.getLongitude());

                //double latitude = 17.385044;
                //double longitude = 78.486671;
                //LatLng lat = new LatLng(latitude,longitude);


                // create marker

                MarkerOptions marker = new MarkerOptions().position(
                        lat).title("Hello Maps");

                // Changing marker icon
                marker.icon(BitmapDescriptorFactory
                        .defaultMarker(BitmapDescriptorFactory.HUE_ROSE));

                // adding marker
                googleMap.addMarker(marker);

                CameraPosition cameraPosition = new CameraPosition.Builder()
                        .target(lat).zoom(12).build();


                googleMap.animateCamera(CameraUpdateFactory
                        .newCameraPosition(cameraPosition));

            }

            // Perform any camera updates here
            return v;
        }


        @Override
        public void onResume() {
            super.onResume();
            mMapView.onResume();
        }

        @Override
        public void onPause() {
            super.onPause();
            mMapView.onPause();
        }

        @Override
        public void onDestroy() {
            super.onDestroy();
            mMapView.onDestroy();
        }

        @Override
        public void onLowMemory() {
            super.onLowMemory();
            mMapView.onLowMemory();
        }
    }
}

结果: