android - Popbackstack Finishes Activity in OnBackPressed -


i have activity 2 fragments (list & details), in oncreate(), start list fragment if savedinstance null so

 public static final int client_list_fragment = 1;  public static final int client_details_fragment = 2;  private int currentfragment = 0;  if (savedinstancestate == null) {             //on first run, start list fragment             if (currentfragment == 0) {                 clientlistfragment listfrag = new clientlistfragment();                 getsupportfragmentmanager().begintransaction()                         .add(r.id.container_client, listfrag, constants.client_list_fragment_tag)                         .commit();                 currentfragment = client_list_fragment;             } else {                 switch (currentfragment) {                     case client_list_fragment:                         addlistfragment();                         break;                     case client_details_fragment:                         adddetailsfragment(0);                         break;                 }             }         }

and here method add detailsfragment , listfragment needed

 private void addlistfragment(){         clientdetailsfragment listfrag = new clientdetailsfragment();         getsupportfragmentmanager().begintransaction()                 .replace(r.id.container_client, listfrag, constants.client_list_fragment_tag)                 .addtobackstack("details")                 .commit();         currentfragment = client_list_fragment;     }      private void adddetailsfragment(long companyid){         clientdetailsfragment detailsfrag = clientdetailsfragment.newinstance(companyid);         getsupportfragmentmanager().begintransaction()                 .replace(r.id.container_client, detailsfrag, constants.client_details_tag)                 .addtobackstack(null)                 .commit();         currentfragment = client_details_fragment;      }

this works expected except when click button details fragment, instead of taking me list fragment, finishes activity. goes list fragment split second , finishes host activity , goes calling activity. how can stop behavior, after going through lot of onbackpress related question on here overide of onbackpressed

@override     public void onbackpressed() {         if (currentfragment == client_details_fragment){             getsupportfragmentmanager().popbackstackimmediate();         }else {             super.onbackpressed();         }     }

thanks

i check whether current fragment instance belongs fragment invoked onbackpressed(). code untested; it's give idea on how proceed. hope not calling this.finish() on activity.

@override public void onbackpressed() {     fragment fragment = getsuportfragmentmanager().findfragmentbytag(constants.client_details_tag);     if (fragment instanceof clientdetailsfragment) {         getsupportfragmentmanager().popbackstackimmediate();     }     else {         super.onbackpressed();     } }

let me know if helps.


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