Google Map Android Api V2 Sample Code not working

Question

I had tried to use the Google Map Sample Code before which was provided in Google_Play_SERVICE/SAMPLE by using all the available options and it showed the below Log.

01-14 17:58:39.773: E/Google Maps Android API(13114): Authorization failure.

It showed me the blank screen for all of the sample Map options.

Now I created a new Project and here is its complete code:-

Activity.java

public class MapActivity extends FragmentActivity
{
    private Context context = this;

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

        GoogleMap gMap = ((SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map)).getMap();

        int result = GooglePlayServicesUtil.isGooglePlayServicesAvailable(context);
        Log.e("Maps", "Result int value::" + result);
        switch (result) {
        case ConnectionResult.SUCCESS:
            Log.e("Maps", "RESULT:: SUCCESS");          
            break;

        case ConnectionResult.DEVELOPER_ERROR:
            Log.e("Maps", "RESULT:: DE");           
            break;

        case ConnectionResult.INTERNAL_ERROR:
            Log.e("Maps", "RESULT:: IE");           
            break;

        case ConnectionResult.INVALID_ACCOUNT:
            Log.e("Maps", "RESULT:: IA");           
            break;

        case ConnectionResult.NETWORK_ERROR:
            Log.e("Maps", "RESULT:: NE");           
            break;

        case ConnectionResult.RESOLUTION_REQUIRED:
            Log.e("Maps", "RESULT:: RR");           
            break;

        case ConnectionResult.SERVICE_DISABLED:
            Log.e("Maps", "RESULT:: SD");           
            break;

        case ConnectionResult.SERVICE_INVALID:
            Log.e("Maps", "RESULT:: SI");           
            break;

        case ConnectionResult.SERVICE_MISSING:
            Log.e("Maps", "RESULT:: SM");           
            break;
        case ConnectionResult.SERVICE_VERSION_UPDATE_REQUIRED:
            Log.e("Maps", "RESULT:: SVUR");         
            break;
        case ConnectionResult.SIGN_IN_REQUIRED:
            Log.e("Maps", "RESULT:: SIR");          
            break;      

        default:
            break;
        }
        gMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
        gMap.setMyLocationEnabled(true);
        Log.e("Maps", "------EOC-------");
    }
}

activity_map.xml

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

Manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="net.dottech.map"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:maxSdkVersion="17"
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

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

    <permission
        android:name="net.dottech.map.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />

    <uses-permission android:name="net.dottech.map.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="net.dottech.map.MapActivity"
            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="removed" />
    </application>

</manifest>

LOG

01-21 13:09:09.243: E/Maps(449): Result int value::0
01-21 13:09:09.243: E/Maps(449): RESULT:: SUCCESS
01-21 13:09:09.243: E/Maps(449): ------EOC-------
01-21 13:09:09.248: D/LocationManagerService(1852): gps location requested by an application
01-21 13:09:09.253: D/SensorManager(449): registerListener :: handle = 0  name= K3DH 
Acceleration Sensor delay= 20000 Listener= maps.i.a@41a054f8
01-21 13:09:09.353: D/(449): Device driver API match
01-21 13:09:09.353: D/(449): Device driver API version: 10
01-21 13:09:09.353: D/(449): User space API version: 10 
01-21 13:09:09.353: D/(449): mali: REVISION=Linux-r2p4-02rel0 BUILD_DATE=Fri May  4 10:32:42 KST 2012
01-21 13:09:12.398: D/Sensors(449): Remain listener = Sending .. normal delay 200ms
01-21 13:09:12.398: I/Sensors(449): sendDelay --- 200000000
01-21 13:09:12.398: I/Sensors(1852): setDelay :: handle = 0   delay = 200000000
01-21 13:09:12.398: D/SensorManager(449): JNI - sendDelay
01-21 16:14:17.835: E/Google Maps Android API(12168): Failed to load map.  Could not contact Google servers.

Screenshot

This is the result, Blank screen with zoom options, No map in MapView.

I have followed each and every step mentioned at:-

1.) Tutorial

2.) Google Map Android Api V2

Answer 1

Got this problem because I had restriction enabled for my API key in Google Console.

Make sure it is set to none and then try again

Answer 2

A common reason for this is not registering the correct keys in your Google API console. Specifically, if you are launching directly from Eclipse, your app is not being signed with your release key, but instead with your debug key. Make sure you register both key fingerprints + package names in your console. It helps to check you have your package names correct, too.

Here is a link to how to find your debug certificate fingerprint. Look under the section 'Displaying the debug certificate fingerprint'