Maps-Api-Schlüssel

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.thomaskuenneth.locationdemo2" android:versionCode="1"
    android:versionName="1.0">
    <uses-sdk android:minSdkVersion="15" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.INTERNET" />
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <uses-library android:name="com.google.android.maps" />
        <activity android:name=".LocationDemo2" 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="... hier steht mein Schlüssel (siehe auch unten) ..."/>
    <meta-data
    android:name="com.google.android.gms.version"
    android:value="@integer/google_play_services_version" />
            
    </application>
</manifest>
<!--     android:value="4030500" /> -->

<?xml version="1.0" encoding="utf-8"?>
<com.google.android.maps.MapView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mapview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:clickable="true"
    android:apiKey="... hier steht noch mal der Schlüssel, muss das sein? ..."
/>

<resources>
    <style name="AppBaseTheme" parent="android:Theme.Light"   </style>
    <style name="AppTheme" parent="AppBaseTheme"> </style>
</resources>

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

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

       <permission
        android:name="com.mymap.esmap.permission.MAPS_RECEIVE"
        android:protectionLevel="signature" />
 
    <uses-permission android:name="com.mymap.esmap.permission.MAPS_RECEIVE" />
    
    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="17" />

       <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
    <!-- Required to show current location -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 
    <!-- Required OpenGL ES 2.0. for Maps V2 -->
    <uses-feature  android:glEsVersion="0x00020000"   android:required="true" />
    
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppBaseTheme" >
        <activity
            android:name="com.mymap.esmap.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.gms.version"
 android:value="4030500" />
        <meta-data
     android:name="com.google.android.maps.v2.API_KEY"
     android:value="AIzaSyDhBv-t9fBX1nns9tY0_sMqt81sotiSTds" />
        
    </application>

</manifest>

public class MainActivity extends Activity {

    private GoogleMap googleMap;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
         try {
                // Loading map
                initilizeMap();
     
            } catch (Exception e) {
                e.printStackTrace();
            }
    }

       private void initilizeMap() {
            if (googleMap == null) {
                googleMap = ((MapFragment) getFragmentManager().findFragmentById(
                        R.id.map)).getMap();
     
                // check if map is created successfully or not
                if (googleMap == null) {
                    Toast.makeText(getApplicationContext(),
                            "Sorry! unable to create maps", Toast.LENGTH_SHORT)
                            .show();
                }
            }
        }
       @Override
        protected void onResume() {
            super.onResume();
            initilizeMap();
       }

}