Android - Google maps Api v2 - Authentication error

问题

After a lot of research to resolve my issue, I have to ask. Everything is set up but the map won't show. The error is:

08-16 20:31:49.473: E/Google Maps Android API(10864): Failed to load map. Error contacting Google servers. This is probably an authentication issue (but could be due to network errors).

I am running the Map on Debug mode (I've also tried by installing the .apk into the device and running it) and the same thing happens - no Map.

I have checked Api key

Manifest

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

    <permission
        android:name="com.my_package_name.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

    <uses-permission android:name="com.my_package_name.permission.MAPS_RECEIVE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <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
        ... >
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyCEH*************************" />
    </application>
</manifest>

Activity

public class Home extends Activity {

static final LatLng HAMBURG = new LatLng(53.558, 9.927);
static final LatLng KIEL = new LatLng(53.551, 9.993);
private GoogleMap map;

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

    map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
    }
}

回答1:

It's an authentication issue, it's likely you haven't setup your API key correctly, using your SHA1 fingerprint.

Take a look at this

回答2:

Activate these Services in the Google Console:

Google Maps Android API v2

Then, recreate the API key and the Maps should work - they did for me.

回答3:

Put this into your manifest.

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

Also check that the Consent Screen (on Google Developer Console Website > Settings) has your email address and product name.

来源：https://stackoverflow.com/questions/18280879/android-google-maps-api-v2-authentication-error

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android

map