java - Is it possible to put a Google Maps V2 MapFragment inside an ActionBar tab? -


i have application uses action bar tabs. trying upgrade application use google maps v2 (mapfragment) when mapfragment passed fragment container main activity, crashes.

mapfragment:

public class establishmentgooglemapfragment extends mapfragment {      private googlemap mmap;     @override     public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) {         view root = super.oncreateview(inflater, container, savedinstancestate);         mmap = getmap();         return root;     } }

fragment transaction:

    public void ontabselected(tab tab, fragmenttransaction ft) {         if(fragment == null){             string fragmentname = fragmentclass.getname();             fragment = fragment.instantiate(activity, fragmentname);             ft.add(fragmentcontainer, fragment, fragmentname);         } else {             ft.attach(fragment);         }     }

logcat:

fatal exception: main java.lang.runtimeexception: unable instantiate activity componentinfo{com.rb.hellojson/com.rb.hellojson.establishmentgooglemapfragment}:       java.lang.classcastexception: com.rb.hellojson.establishmentgooglemapfragment cannot cast android.app.activity     @ android.app.activitythread.performlaunchactivity(activitythread.java:2024)     @ android.app.activitythread.handlelaunchactivity(activitythread.java:2125)     @ android.app.activitythread.access$600(activitythread.java:140)     @ android.app.activitythread$h.handlemessage(activitythread.java:1227)     @ android.os.handler.dispatchmessage(handler.java:99)     @ android.os.looper.loop(looper.java:137)     @ android.app.activitythread.main(activitythread.java:4898)     @ java.lang.reflect.method.invokenative(native method)     @ java.lang.reflect.method.invoke(method.java:511)     @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:1006)     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:773)     @ dalvik.system.nativestart.main(native method) caused by: java.lang.classcastexception: com.rb.hellojson.establishmentgooglemapfragment cannot cast android.app.activity     @ android.app.instrumentation.newactivity(instrumentation.java:1057)     @ android.app.activitythread.performlaunchactivity(activitythread.java:2015)     ... 11 more

this error should clear:

caused by: java.lang.classcastexception: com.rb.hellojson.establishmentgooglemapfragment cannot cast android.app.activity

are trying startactivity on fragment or what?

for later fixes: mmap = getmap(); return null @ point (or maybe not).

edit:

something starting fragment activity. , if it's not launcher, because fragment defined in manifest...


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