无法获取当前位置问题（android、权限）

Question

我已经开发了我的第一个应用程序，并制作了一个简单的地图活动，但纬度和经度始终为 0。（当我启动活动时，光标应设置在设备位置）。 我在清单中设置了权限并获取了 google-services.json 文件，但我仍然有这个错误：

E/GMPM：GoogleService 初始化失败，状态：10，缺少预期的资源：用于初始化 Google 服务的“R.string.google_app_id”。可能的原因是缺少 google-services.json 或 com.google.gms.google-services gradle 插件。

我想这就是为什么我不能得到正确的经度和纬度。

活动代码：

public class ********Activity extends FragmentActivity implements OnMapReadyCallback,GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {

private GoogleMap mMap;
double latitude, longitude;
GoogleApiClient mGoogleApiClient;
Location mLastLocation;

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

    buildGoogleApiClient();

    if (mGoogleApiClient != null) {
        mGoogleApiClient.connect();
    } else
        Toast.makeText(this, "Not connected...", Toast.LENGTH_SHORT).show();

    // Obtain the SupportMapFragment and get notified when the map is ready to be used.
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);
}

protected void onStart() {
    mGoogleApiClient.connect();
    super.onStart();
}

protected void onStop() {
    mGoogleApiClient.disconnect();
    super.onStop();
}


public void onConnectionFailed(ConnectionResult arg0) {
    Toast.makeText(this, "Failed to connect...", Toast.LENGTH_SHORT).show();

}


public void onConnectionSuspended(int arg0) {
    Toast.makeText(this, "Connection suspended...", Toast.LENGTH_SHORT).show();

}


public void onConnected(Bundle arg0) {
    mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED){
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        Log.i("Permission","problems");
        return;
    }

    if (mLastLocation != null) {
        latitude = mLastLocation.getLatitude();
        longitude = mLastLocation.getLongitude();
        Log.i("latitude",""+latitude);
        Log.i("longitude",""+longitude);
    }

}


protected synchronized void buildGoogleApiClient() {
    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(LocationServices.API)
            .build();
}


/**
 * Manipulates the map once available.
 * This callback is triggered when the map is ready to be used.
 * This is where we can add markers or lines, add listeners or move the camera. In this case,
 * we just add a marker near Sydney, Australia.
 * If Google Play services is not installed on the device, the user will be prompted to install
 * it inside the SupportMapFragment. This method will only be triggered once the user has
 * installed Google Play services and returned to the app.
 */
@Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;

    LatLng pos = new LatLng(latitude,longitude);
    mMap.addMarker(new MarkerOptions().position(pos).title("User Marker"));
    mMap.moveCamera(CameraUpdateFactory.newLatLng(pos));
}
}

清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.marcocreation.******">

<!-- To auto-complete the email text field in the login form with the user's emails -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />


<!--
     The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
     Google Maps Android API v2, but you must specify either coarse or fine
     location permissions for the 'MyLocation' functionality. 
-->
<application
    android:allowBackup="true"
    android:icon="@mipmap/soccer"
    android:label="@string/app_name"
    android:launchMode="singleTop"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <meta-data
        android:name="com.facebook.sdk.ApplicationId"
        android:value="@string/facebook_app_id" />
    <meta-data
        android:name="com.google.android.geo.API_KEY"
        android:value="@string/google_maps_key" />
    <meta-data android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />
    <activity
        android:name="com.facebook.FacebookActivity"
        android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.Translucent.NoTitleBar" />
    <activity
        android:name=".MainActivity"
        android:theme="@style/AppTheme">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".LoginActivity"
        android:label="@string/title_activity_login"
        android:parentActivityName=".MainActivity">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.marcocreation.******.MainActivity" />
    </activity>
    <activity
        android:name=".HomeUserActivity"
        android:label="@string/title_activity_home_user"
        android:theme="@style/AppTheme" />
    <activity
        android:name=".RegisterActivity"
        android:label="@string/title_activity_register"
        android:parentActivityName=".MainActivity"
        android:theme="@style/AppTheme">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.marcocreation.*******.MainActivity" />
    </activity>
    <activity
        android:name=".ProfileActivity"
        android:label="@string/title_activity_profile"
        android:theme="@style/AppTheme" />
    <activity
        android:name=".profileActivity2"
        android:label="@string/title_activity_profile2"
        android:theme="@style/AppTheme" />
    <!--
         The API key for Google Maps-based APIs is defined as a string resource.
         (See the file "res/values/google_maps_api.xml").
         Note that the API key is linked to the encryption key used to sign the APK.
         You need a different API key for each encryption key, including the release key that is used to
         sign the APK for publishing.
         You can define the keys for the debug and release targets in src/debug/ and src/release/. 
    -->


    <activity
        android:name=".locateMatchActivity"
        android:label="@string/title_activity_locate_match">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.marcocreation.********.profileActivity2" />
    </activity>
</application>

</manifest>

分级：

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'

    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
    compile 'com.facebook.android:facebook-android-sdk:4.+'
    compile 'com.google.android.gms:play-services:8.4.0'
}

阅读日志，我看到“权限：问题”，所以该应用似乎没有正确的权限。

Answer 1

您需要放置developer.google.com生成的配置文件（google-services.json），如官方文档here第二步所述

请看这篇帖子：GoogleService failed to initialize

它会帮助你

Answer 2

我想我解决了我的问题： - 我更新了 android studio，现在我使用 编译'com.google.android.gms:play-services-maps:9.2.0' 编译'com.google.android.gms:play-services:9.2.0'

而不是 8.4.0。

现在我要创建一个新帖子，因为我要疯狂地使用地图