android - Crashes when showing map on real device, running on emulator shows google play service missing -

when ever run app on emulator shows google play service missing.but when run same application on real device unexpectedly stops application making crash here code map

`

    <uses-sdk         android:minsdkversion="8"         android:targetsdkversion="8" /> <uses-permission android:name="android.permission.read_contacts" />     <application         android:allowbackup="true"         android:icon="@drawable/loc_finder"         android:label="@string/app_name"         android:theme="@style/apptheme" >         <uses-library android:name="com.google.android.maps" />           <service android:name="jade.android.microruntimeservice" />         <activity             android:name="com.example.location_finder.login_activity"             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="in.wptrafficanalyzer.proximitymapv2.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>          <activity             android:name=".proximityactivity"             android:label="@string/app_name" >             <intent-filter >                 <action android:name="in.wptrafficanalyzer.activity.proximity"/>                 <category android:name="android.intent.category.default" />                         </intent-filter>         </activity>          <activity             android:name=".notificationview"             android:label="@string/app_name" >              <intent-filter >                 <category android:name="android.intent.category.default" />                             </intent-filter>          </activity>             <activity android:name="com.example.location_finder.new_user_activity" >         </activity>         <activity android:name="com.example.location_finder.welcome_activity" >         </activity>         <activity android:name="com.example.location_finder.search_friend_activity" >         </activity>         <activity android:name="com.example.location_finder.search_location_activity" >         </activity>         <activity android:name="com.example.location_finder.gpslocatoractivity" >         </activity>           <activity android:name="chat.client.gui.mainactivity" />           <activity android:name="chat.client.gui.chatactivity" />            <activity android:name="chat.client.gui.chatclientactivity" />            <activity android:name="chat.client.gui.participantsactivity" />         </application>         <uses-permission           android:name="in.wptrafficanalyzer.proximitymapv2.permission.maps_receive"           android:protectionlevel="signature"/>      <uses-permission android:name="in.wptrafficanalyzer.proximitymapv2.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"/>     <uses-feature         android:glesversion="0x00020000"         android:required="true"/>       <uses-permission android:name="android.permission.internet" >     </uses-permission>     <uses-permission android:name="android.permission.access_network_state" >     </uses-permission>     <uses-permission android:name="android.permission.access_coarse_location" >     </uses-permission>     <uses-permission android:name="android.permission.access_fine_location" >     </uses-permission>      <uses-permission android:name="android.permission.access_mock_location" />         <uses-permission android:name="android.permission.vibrate" />          <meta-data             android:name="com.google.android.maps.v2.api_key"             android:value="aizasydgah79jaiabl54k8v8hfb7uzopkvwtgzw"/>   </manifest> 

`

mainactivity.java

public class mainactivity extends fragmentactivity 

{

googlemap googlemap; locationmanager locationmanager; pendingintent pendingintent; sharedpreferences sharedpreferences;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);         // getting google play availability status     int status = googleplayservicesutil.isgoogleplayservicesavailable(getbasecontext());      // showing status     if(status!=connectionresult.success){ // google play services not available          int requestcode = 10;         dialog dialog = googleplayservicesutil.geterrordialog(status, this, requestcode);         dialog.show();      }else { // google play services available                     // getting reference supportmapfragment of activity_main.xml         supportmapfragment fm = (supportmapfragment) getsupportfragmentmanager().findfragmentbyid(r.id.map);          // getting googlemap object fragment         googlemap = fm.getmap();          // enabling mylocation layer of google map         googlemap.setmylocationenabled(true);                      // getting locationmanager object system service location_service         locationmanager = (locationmanager) getsystemservice(location_service);           // opening sharedpreferences object         sharedpreferences = getsharedpreferences("location", 0);          // getting stored latitude if exists else return 0         string lat = sharedpreferences.getstring("lat", "0");          // getting stored longitude if exists else return 0         string lng = sharedpreferences.getstring("lng", "0");          // getting stored zoom level if exists else return 0         string zoom = sharedpreferences.getstring("zoom", "0");          // if coordinates stored earlier         if(!lat.equals("0")){              // drawing circle on map             drawcircle(new latlng(double.parsedouble(lat), double.parsedouble(lng)));              // drawing marker on map             drawmarker(new latlng(double.parsedouble(lat), double.parsedouble(lng)));              // moving cameraposition clicked position             googlemap.movecamera(cameraupdatefactory.newlatlng(new latlng(double.parsedouble(lat), double.parsedouble(lng))));              // setting zoom level in map             googlemap.animatecamera(cameraupdatefactory.zoomto(float.parsefloat(zoom)));                           }           googlemap.setonmapclicklistener(new onmapclicklistener() {              //@override             public void onmapclick(latlng point) {                  // removes existing marker google map                 googlemap.clear();                        // drawing marker on map                 drawmarker(point);                  // drawing circle on map                 drawcircle(point);                                    // intent call activity proximityactivity                 intent proximityintent = new intent("in.wptrafficanalyzer.activity.proximity");                                   // creating pending intent invoked locationmanager when specified region                 // entered or exited                 pendingintent = pendingintent.getactivity(getbasecontext(), 0, proximityintent,intent.flag_activity_new_task);                                    // setting proximity alert                  // pending intent invoked when device enters or exits region 20 meters                 // away marked point                 // -1 indicates that, monitor not expired                 locationmanager.addproximityalert(point.latitude, point.longitude, 20, -1, pendingintent);                    /** opening editor object write data sharedpreferences */                 sharedpreferences.editor editor = sharedpreferences.edit();                  /** storing latitude of current location shared preferences */                 editor.putstring("lat", double.tostring(point.latitude));                  /** storing longitude of current location shared preferences */                 editor.putstring("lng", double.tostring(point.longitude));                  /** storing zoom level shared preferences */                 editor.putstring("zoom", float.tostring(googlemap.getcameraposition().zoom));                                 /** saving values stored in shared preferences */                 editor.commit();                                  toast.maketext(getbasecontext(), "proximity alert added", toast.length_short).show();                                  }         });              googlemap.setonmaplongclicklistener(new onmaplongclicklistener() {                           //@override             public void onmaplongclick(latlng point) {                 intent proximityintent = new intent("in.wptrafficanalyzer.activity.proximity");                  pendingintent = pendingintent.getactivity(getbasecontext(), 0, proximityintent,intent.flag_activity_new_task);                  // removing proximity alert                                  locationmanager.removeproximityalert(pendingintent);                  // removing marker , circle google map                 googlemap.clear();                  // opening editor object delete data sharedpreferences                 sharedpreferences.editor editor = sharedpreferences.edit();                  // clearing editor                 editor.clear();                  // committing changes                 editor.commit();                  toast.maketext(getbasecontext(), "proximity alert removed", toast.length_long).show();             }         });                }    }     private void drawmarker(latlng point){     // creating instance of markeroptions     markeroptions markeroptions = new markeroptions();                        // setting latitude , longitude marker     markeroptions.position(point);      // adding marker on google map     googlemap.addmarker(markeroptions);  }   private void drawcircle(latlng point){      // instantiating circleoptions draw circle around marker     circleoptions circleoptions = new circleoptions();      // specifying center of circle     circleoptions.center(point);      // radius of circle     circleoptions.radius(20);      // border color of circle     circleoptions.strokecolor(color.black);      // fill color of circle     circleoptions.fillcolor(0x30ff0000);      // border width of circle     circleoptions.strokewidth(2);      // adding circle googlemap     googlemap.addcircle(circleoptions);  }     @override public boolean oncreateoptionsmenu(menu menu) {     // inflate menu; adds items action bar if present.     getmenuinflater().inflate(r.menu.main, menu);     return true; } 

}

logcat

05-04 22:36:22.820: d/sensormanager(29794): registerlistener :: handle = 0  name= lsm330dlc 3-axis accelerometer delay= 200000 listener= android.view.orientationeventlistener$sensoreventlistenerimpl@42c2ce28 05-04 22:36:22.870: d/dalvikvm(29794): gc_concurrent freed 209k, 9% free 13173k/14407k, paused 5ms+1ms, total 17ms 05-04 22:36:22.875: d/androidruntime(29794): shutting down vm 05-04 22:36:22.875: w/dalvikvm(29794): threadid=1: thread exiting uncaught exception (group=0x41e542a0) 05-04 22:36:22.885: e/androidruntime(29794): fatal exception: main 05-04 22:36:22.885: e/androidruntime(29794): java.lang.runtimeexception: unable start activity componentinfo{com.example.location_finder/in.wptrafficanalyzer.proximitymapv2.mainactivity}: java.lang.nullpointerexception 05-04 22:36:22.885: e/androidruntime(29794):    @ android.app.activitythread.performlaunchactivity(activitythread.java:2100) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.app.activitythread.handlelaunchactivity(activitythread.java:2125) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.app.activitythread.access$600(activitythread.java:140) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.app.activitythread$h.handlemessage(activitythread.java:1227) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.os.handler.dispatchmessage(handler.java:99) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.os.looper.loop(looper.java:137) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.app.activitythread.main(activitythread.java:4898) 05-04 22:36:22.885: e/androidruntime(29794):    @ java.lang.reflect.method.invokenative(native method) 05-04 22:36:22.885: e/androidruntime(29794):    @ java.lang.reflect.method.invoke(method.java:511) 05-04 22:36:22.885: e/androidruntime(29794):    @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1006) 05-04 22:36:22.885: e/androidruntime(29794):    @ com.android.internal.os.zygoteinit.main(zygoteinit.java:773) 05-04 22:36:22.885: e/androidruntime(29794):    @ dalvik.system.nativestart.main(native method) 05-04 22:36:22.885: e/androidruntime(29794): caused by: java.lang.nullpointerexception 05-04 22:36:22.885: e/androidruntime(29794):    @ in.wptrafficanalyzer.proximitymapv2.mainactivity.oncreate(mainactivity.java:55) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.app.activity.performcreate(activity.java:5206) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.app.instrumentation.callactivityoncreate(instrumentation.java:1083) 05-04 22:36:22.885: e/androidruntime(29794):    @ android.app.activitythread.performlaunchactivity(activitythread.java:2064) 05-04 22:36:22.885: e/androidruntime(29794):    ... 11 more 

maybe had fixed issue.

but code side, need check whether fm null before tried use it.

supportmapfragment fm = (supportmapfragment) getsupportfragmentmanager().findfragmentbyid(r.id.map);