android - Recyceler View on device rotation replication -

in application, there recycler view in fragment

when follow following steps got duplicated in nexus 6 5.1.1 device 1)change device orientation landscape 2)lock device 3)change device orientation portrait 4) unlock device 1 sec there replication of view

i have setretaininstance = true in fragment

and

 getsupportfragmentmanager().begintransaction() .add(getcontentframe(),fragment,fragment.getclass().getname())                         .addtobackstack(fragment.getclass().getname())                         .commit(); 

for adding fragment

you need use 2 things:

onsaveinstancestate onrestoreinstancestate

check documentation

wiki