android - Get fragment layout from its id -

i'm trying change fragments inside activity in android application.

i want code method which, based on button's id changes fragment inside view, problem in myfragment class

public static class myfragment extends fragment {         public registerfragment(int id){                  this.id = id;             }          @override         public view oncreateview(layoutinflater inflater, viewgroup container,                 bundle savedinstancestate) {             xmlresourceparser layout = getresources().getlayout(r.id.this.id);              view rootview = inflater.inflate(layout, container, false);             return rootview;         }     } 

my problem getresources().getlayout(r.id.some-random-id); givin error

resource id type not valid 

i'm using method because want make dynamic choose of fragment layout, based, indeed, on id.

i use android:id retrieve di layout

<framelayout xmlns:android="http://schemas.android.com/apk/res/android"     android:id ="@+id/register_fragment"     android:layout_width="match_parent"     android:layout_height="match_parent"      android:background="@color/background_blue" > 

am using bad approach?

cheers

r.id give of views id, layouts (activities, fragments..) located in r.layout tried access isn't located in r.id, hence not giving id.