android - How to show google map v2 in Fragment? -

i have frame layout, show fragments, how can show google map frame_layout. make next:

1. get api key

2. add google play services library nullpointerexeption, maybe knows examples how use it? car_waches.xml

fragment class:

public class fragmentcarwashes extends sherlockfragment { view v; @override public view oncreateview(layoutinflater inflater, viewgroup container,         bundle savedinstancestate) {     googlemap map = ((supportmapfragment) getfragmentmanager().findfragmentbyid(r.id.mapfragment))                .getmap();     v = inflater.inflate(r.layout.fragment_car_washes, null);      return v; } } 

manifet file

<?xml version="1.0" encoding="utf-8"?> 

<uses-sdk     android:minsdkversion="10"     android:targetsdkversion="17" />  <permission     android:name="com.example.cars51ru.permition.maps_receive"     android:protectionlevel="signature" />  <uses-permission android:name="com.example.cars51ru.permition.maps_receive" /> <uses-permission android:name="android.permission.call_phone" /> <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="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-feature     android:glesversion="0x00020000"     android:required="true" />  <application     android:allowbackup="true"     android:icon="@drawable/ic_launcher"     android:label="@string/app_name"     android:theme="@style/theme.sherlock.light" >     <meta-data         android:name="com.google.android.maps.v3.api_key"         android:value="api key" />      <activity         android:name="com.example.cars51ru.splashactivity"         android:label="@string/app_name" >         <intent-filter>             <action android:name="android.intent.action.main" />              <category android:name="android.intent.category.launcher" />         </intent-filter>     </activity>     <activity         android:name="com.example.cars51ru.mainactivity"         android:label="@string/app_name" >     </activity>      <uses-library android:name="com.google.android.maps" /> </application>  </manifest> 

i not versed in serlock stuff bu believe need use sherlockmapfragment

edit:

take @ link

supportmapfragment or googlemap null