Cannot resolve method 'show(android.support.v4.app.FragmentTransaction, java.lang.String)' -


i trying create image gallery view pager. getting error saying cannot resolve method 'show(android.support.v4.app.fragmenttransaction, java.lang.string)' newfragment.show(ft, "slideshow");i have read similar questions related fragment manager not helping newbie , using fragmenttransaction not fragmentmanager. can me fix ? 

import android.app.fragment; import android.app.progressdialog; import android.os.bundle; import android.support.v4.app.fragmentmanager; import android.support.v4.app.fragmenttransaction; import android.support.v7.app.appcompatactivity; import android.support.v7.widget.toolbar; import android.util.log; import android.view.view;  import org.json.jsonarray; import org.json.jsonexception; import org.json.jsonobject;  import android.support.v7.widget.defaultitemanimator; import android.support.v7.widget.gridlayoutmanager; import android.support.v7.widget.recyclerview;  import com.android.volley.response; import com.android.volley.volleyerror; import com.android.volley.toolbox.jsonarrayrequest;  import java.util.arraylist;  public class mainactivity extends appcompatactivity {      private string tag = mainactivity.class.getsimplename();     private static final string endpoint = "http://demos.vetbossel.in/ajson/image.json";     private arraylist<image1> images;     private progressdialog pdialog;     private galleryadapter madapter;     private recyclerview recyclerview;      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          toolbar toolbar = (toolbar) findviewbyid(r.id.toolbar);         setsupportactionbar(toolbar);          recyclerview = (recyclerview) findviewbyid(r.id.recycler_view);          pdialog = new progressdialog(this);         images = new arraylist<>();         madapter = new galleryadapter(getapplicationcontext(), images);          recyclerview.layoutmanager mlayoutmanager = new gridlayoutmanager(getapplicationcontext(), 2);         recyclerview.setlayoutmanager(mlayoutmanager);         recyclerview.setitemanimator(new defaultitemanimator());         recyclerview.setadapter(madapter);          recyclerview.addonitemtouchlistener(new galleryadapter.recyclertouchlistener(getapplicationcontext(), recyclerview, new galleryadapter.clicklistener() {             @override             public void onclick(view view, int position) {                 bundle bundle = new bundle();                 bundle.putserializable("images", images);                 bundle.putint("position", position);                  fragmenttransaction ft = getsupportfragmentmanager().begintransaction();                 slideshowdialogfragment newfragment = slideshowdialogfragment.newinstance();                 newfragment.setarguments(bundle);                 newfragment.show(ft,"tag");             }              @override             public void onlongclick(view view, int position) {              }         }));          fetchimages();     }      private void fetchimages() {          pdialog.setmessage("loading images...");         pdialog.show();          jsonarrayrequest req = new jsonarrayrequest(endpoint,                 new response.listener<jsonarray>() {                     @override                     public void onresponse(jsonarray response) {                         log.d(tag, response.tostring());                         pdialog.hide();                          images.clear();                         (int = 0; < response.length(); i++) {                             try {                                 jsonobject object = response.getjsonobject(i);                                 image1 image = new image1();                                   jsonobject url = object.getjsonobject("url");                                 image.setsmall(url.getstring("small"));                                 image.setmedium(url.getstring("medium"));                                 image.setlarge(url.getstring("large"));                                   images.add(image);                              } catch (jsonexception e) {                                 log.e(tag, "json parsing error: " + e.getmessage());                             }                         }                          madapter.notifydatasetchanged();                     }                 }, new response.errorlistener() {             @override             public void onerrorresponse(volleyerror error) {                 log.e(tag, "error: " + error.getmessage());                 pdialog.hide();             }         });          // adding request request queue         appcontroller.getinstance().addtorequestqueue(req);     } }

actually problem in slideshowdialogfragment class. in android there 2 dialogfragment

  1. android.support.v4.app.dialogfragment
  2. android.app.dialogfragment

as slideshowdialogfragment class extend 2nd one, cant use android.support.v4.app.fragmenttransaction.

solution go slideshowdialogfragment class , replace import android.app.dialogfragment; import android.support.v4.app.dialogfragment;. work fine.


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