Fragments inside a fragment Android application -

i'm trying put 2 fragments inside fragment. found code on internet but, far go, don't succeed put 2 fragments in 1 fragment. have seen tips dealing fragmentmanager , method getchildfragmentmanager() don't know how works 2 fragments.

for story, i'm using activity actionbar creates 3 fragments. in 1 of them, need handle graph , kind of menu change graph scale. in way, need 2 fragments in 1 fragment.

here code :

the fragment handles others:

public class graphdisplayfragment extends fragment {  @override  public view oncreateview(layoutinflater inflater, viewgroup container,    bundle savedinstancestate) {    view myfragmentview = inflater.inflate(r.layout.graph_fragment, container, false);    return myfragmentview;   } } 

the code draw graph:

public class graphfragment extends fragment { private static final int series_nr = 1;  @override  public view oncreateview(layoutinflater inflater, viewgroup container,    bundle savedinstancestate) {    graphicalview myfragmentview = chartfactory.gettimechartview(this.getactivity(), getdatedemodataset(), getdemorenderer(),null);   return myfragmentview;   }  //some functions set graph propreties } 

the xml files :

graph_fragment.xml

    <?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" >    <fragment     android:id="@+id/graph_fragment"     android:name="com.test.graphfragment"     android:layout_width="match_parent"     android:layout_height="259dp" >  </fragment> <fragment     android:name="com.test.graphdetailfragment"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:id="@+id/graph_detail_fragment"> </fragment> </linearlayout> 

graph_detail.xml test implementation

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <textview     android:id="@+id/textview1"     android:layout_width="211dp"     android:layout_height="wrap_content"     android:text="textview" />  </linearlayout> 

the weird thing is, works @ begining when switch between fragments in actionbar after 3-4 moves, error :

android.view.inflateexception: binary xml file line #7: error inflating class fragment 

if has solution, awesome!

so first off change xml graph_fragment.xml this

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical" >       <framelayout           android:id="@+id/graph_fragment_holder"           android:layout_width="match_parent"           android:layout_height="259dp" >      </framelayout>    <framelayout           android:layout_width="match_parent"           android:layout_height="match_parent"           android:id="@+id/graph_detail_fragment_holder">    </framelayout> </linearlayout> 

then in code inflate them fragment use this

@override public view oncreateview(layoutinflater inflater, viewgroup container,         bundle savedinstancestate) {     view rootview = inflater.inflate(r.layout.graph_fragment,             container, false);     firstchildfragment frag1 = (firstchildfragment) getchildfragmentmanager()             .findfragmentbyid(r.id.first_frag_layout);     secondchildfragment frag1 = (secondchildfragment) getchildfragmentmanager()             .findfragmentbyid(r.id.second_frag_layout);     if (null == frag1) {         firstchildfragment = new frag1();         fragmenttransaction transaction = getchildfragmentmanager()                 .begintransaction();          transaction.add(r.id.graph_fragment_holder, frag1)                 .addtobackstack(null).commit();     }       if (null == frag2) {         secondchildfragment = new frag2();         fragmenttransaction transaction = getchildfragmentmanager()                 .begintransaction();          transaction.add(r.id.graph_detail_fragment_holder, frag2)                 .addtobackstack(null).commit();     }      return rootview; }