How to create one more navigation drawer template in Android Studio when I already had one navigation drawer template? -

i had created navigation drawer using template. want activity have navigation drawer too. however, cannot create template 1 more. can me? thanks.

here's code:

mainactivity.java

import android.app.activity; import android.content.intent; import android.os.bundle; import android.support.v4.app.fragment; import android.support.v4.app.fragmentmanager; import android.support.v4.widget.drawerlayout; import android.support.v7.app.actionbar; import android.support.v7.app.appcompatactivity; import android.view.layoutinflater; import android.view.menu; import android.view.menuitem; import android.view.view; import android.view.viewgroup;  public class mainactivity extends appcompatactivity     implements navigationdrawerfragment.navigationdrawercallbacks {  /**  * fragment managing behaviors, interactions , presentation of navigation drawer.  */ private navigationdrawerfragment mnavigationdrawerfragment;  /**  * used store last screen title. use in {@link #restoreactionbar()}.  */ private charsequence mtitle;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      mnavigationdrawerfragment = (navigationdrawerfragment)             getsupportfragmentmanager().findfragmentbyid(r.id.navigation_drawer);     mtitle = gettitle();      // set drawer.     mnavigationdrawerfragment.setup(             r.id.navigation_drawer,             (drawerlayout) findviewbyid(r.id.drawer_layout)); }  @override public void onnavigationdraweritemselected(int position) {     // update main content replacing fragments     fragmentmanager fragmentmanager = getsupportfragmentmanager();     fragmentmanager.begintransaction()             .replace(r.id.container, placeholderfragment.newinstance(position + 1))             .commit(); }   public void onsectionattached(int number) {     switch (number) {         case 1:             mtitle = getstring(r.string.title_section1);             break;         case 2:             mtitle = getstring(r.string.title_section2);             intent text = new intent(getapplicationcontext(), hiking_trails.class);             startactivity(text);             break;         case 3:             mtitle = getstring(r.string.title_section3);             break;         case 4:             mtitle = getstring(r.string.title_section4);             break;         case 5:             mtitle = getstring(r.string.title_section5);             intent mlogin = new intent(getapplicationcontext(), login.class);             startactivity(mlogin);             break;         case 6:             mtitle = getstring(r.string.title_section6);             intent mregister = new intent(getapplicationcontext(), register.class);             startactivity(mregister);             break;     } }  public void restoreactionbar() {     actionbar actionbar = getsupportactionbar();     actionbar.setnavigationmode(actionbar.navigation_mode_standard);     actionbar.setdisplayshowtitleenabled(true);     actionbar.settitle(mtitle); }   @override public boolean oncreateoptionsmenu(menu menu) {     if (!mnavigationdrawerfragment.isdraweropen()) {         // show items in action bar relevant screen         // if drawer not showing. otherwise, let drawer         // decide show in action bar.         getmenuinflater().inflate(r.menu.main, menu);         restoreactionbar();         return true;     }     return super.oncreateoptionsmenu(menu); }  @override public boolean onoptionsitemselected(menuitem item) {     // handle action bar item clicks here. action bar     // automatically handle clicks on home/up button, long     // specify parent activity in androidmanifest.xml.     int id = item.getitemid();      //noinspection simplifiableifstatement     if (id == r.id.action_settings) {         return true;     }      return super.onoptionsitemselected(item); }  /**  * placeholder fragment containing simple view.  */ public static class placeholderfragment extends fragment {     /**      * fragment argument representing section number      * fragment.      */     private static final string arg_section_number = "section_number";      /**      * returns new instance of fragment given section      * number.      */     public static placeholderfragment newinstance(int sectionnumber) {         placeholderfragment fragment = new placeholderfragment();         bundle args = new bundle();         args.putint(arg_section_number, sectionnumber);         fragment.setarguments(args);         return fragment;     }      public placeholderfragment() {     }      @override     public view oncreateview(layoutinflater inflater, viewgroup container,                              bundle savedinstancestate) {         view rootview = inflater.inflate(r.layout.fragment_main, container, false);         return rootview;     }      @override     public void onattach(activity activity) {         super.onattach(activity);         ((mainactivity) activity).onsectionattached(                 getarguments().getint(arg_section_number));     } }  } 

navigationdrawerfragment.java

import android.app.activity; import android.content.sharedpreferences; import android.content.res.configuration; import android.os.bundle; import android.preference.preferencemanager; import android.support.v4.app.fragment; import android.support.v4.view.gravitycompat; import android.support.v4.widget.drawerlayout; import android.support.v7.app.actionbar; import android.support.v7.app.appcompatactivity; import android.support.v7.app.actionbardrawertoggle; import android.view.layoutinflater; import android.view.menu; import android.view.menuinflater; import android.view.menuitem; import android.view.view; import android.view.viewgroup; import android.widget.adapterview; import android.widget.arrayadapter; import android.widget.listview;  /** * fragment used managing interactions , presentation of      navigation drawer. * see <a href="https://developer.android.com/design/patterns/navigation-drawer.html#interaction"> * design guidelines</a> complete explanation of behaviors implemented here. */ public class navigationdrawerfragment extends fragment {  /**  * remember position of selected item.  */ private static final string state_selected_position = "selected_navigation_drawer_position";  /**  * per design guidelines, should show drawer on launch until user manually  * expands it. shared preference tracks this.  */ private static final string pref_user_learned_drawer = "navigation_drawer_learned";  /**  * pointer current callbacks instance (the activity).  */ private navigationdrawercallbacks mcallbacks;  /**  * helper component ties action bar navigation drawer.  */ private actionbardrawertoggle mdrawertoggle;  private drawerlayout mdrawerlayout; private listview mdrawerlistview; private view mfragmentcontainerview;  private int mcurrentselectedposition = 0; private boolean mfromsavedinstancestate; private boolean muserlearneddrawer;  public navigationdrawerfragment() { }  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);      // read in flag indicating whether or not user has demonstrated awareness of     // drawer. see pref_user_learned_drawer details.     sharedpreferences sp = preferencemanager.getdefaultsharedpreferences(getactivity());     muserlearneddrawer = sp.getboolean(pref_user_learned_drawer, false);      if (savedinstancestate != null) {         mcurrentselectedposition = savedinstancestate.getint(state_selected_position);         mfromsavedinstancestate = true;     }      // select either default item (0) or last selected item.     selectitem(mcurrentselectedposition); }  @override public void onactivitycreated(bundle savedinstancestate) {     super.onactivitycreated(savedinstancestate);     // indicate fragment influence set of actions in action bar.     sethasoptionsmenu(true); }  @override public view oncreateview(layoutinflater inflater, viewgroup container,                          bundle savedinstancestate) {     mdrawerlistview = (listview) inflater.inflate(             r.layout.fragment_navigation_drawer, container, false);     mdrawerlistview.setonitemclicklistener(new adapterview.onitemclicklistener() {         @override         public void onitemclick(adapterview<?> parent, view view, int position, long id) {             selectitem(position);         }     });     mdrawerlistview.setadapter(new arrayadapter<string>(             getactionbar().getthemedcontext(),             android.r.layout.simple_list_item_activated_1,             android.r.id.text1,             new string[]{                     getstring(r.string.title_section1),                     getstring(r.string.title_section2),                     getstring(r.string.title_section3),                     getstring(r.string.title_section4),                     getstring(r.string.title_section5),                     getstring(r.string.title_section6),             }));     mdrawerlistview.setitemchecked(mcurrentselectedposition, true);     return mdrawerlistview; }  public boolean isdraweropen() {     return mdrawerlayout != null && mdrawerlayout.isdraweropen(mfragmentcontainerview); }  /**  * users of fragment must call method set navigation drawer interactions.  *  * @param fragmentid   android:id of fragment in activity's layout.  * @param drawerlayout drawerlayout containing fragment's ui.  */ public void setup(int fragmentid, drawerlayout drawerlayout) {     mfragmentcontainerview = getactivity().findviewbyid(fragmentid);     mdrawerlayout = drawerlayout;      // set custom shadow overlays main content when drawer opens     mdrawerlayout.setdrawershadow(r.drawable.drawer_shadow, gravitycompat.start);     // set drawer's list view items , click listener      actionbar actionbar = getactionbar();     actionbar.setdisplayhomeasupenabled(true);     actionbar.sethomebuttonenabled(true);      // actionbardrawertoggle ties the proper interactions     // between navigation drawer , action bar app icon.     mdrawertoggle = new actionbardrawertoggle(             getactivity(),                    /* host activity */             mdrawerlayout,                    /* drawerlayout object */             /* nav drawer image replace 'up' caret */             r.string.navigation_drawer_open,  /* "open drawer" description accessibility */             r.string.navigation_drawer_close  /* "close drawer" description accessibility */     ) {         @override         public void ondrawerclosed(view drawerview) {             super.ondrawerclosed(drawerview);             if (!isadded()) {                 return;             }              getactivity().supportinvalidateoptionsmenu(); // calls onprepareoptionsmenu()         }          @override         public void ondraweropened(view drawerview) {             super.ondraweropened(drawerview);             if (!isadded()) {                 return;             }              if (!muserlearneddrawer) {                 // user manually opened drawer; store flag prevent auto-showing                 // navigation drawer automatically in future.                 muserlearneddrawer = true;                 sharedpreferences sp = preferencemanager                         .getdefaultsharedpreferences(getactivity());                 sp.edit().putboolean(pref_user_learned_drawer, true).apply();             }              getactivity().supportinvalidateoptionsmenu(); // calls onprepareoptionsmenu()         }     };      // if user hasn't 'learned' drawer, open introduce them drawer,     // per navigation drawer design guidelines.     if (!muserlearneddrawer && !mfromsavedinstancestate) {         mdrawerlayout.opendrawer(mfragmentcontainerview);     }      // defer code dependent on restoration of previous instance state.     mdrawerlayout.post(new runnable() {         @override         public void run() {             mdrawertoggle.syncstate();         }     });      mdrawerlayout.setdrawerlistener(mdrawertoggle); }  private void selectitem(int position) {     mcurrentselectedposition = position;     if (mdrawerlistview != null) {         mdrawerlistview.setitemchecked(position, true);     }     if (mdrawerlayout != null) {         mdrawerlayout.closedrawer(mfragmentcontainerview);     }     if (mcallbacks != null) {         mcallbacks.onnavigationdraweritemselected(position);     } }  @override public void onattach(activity activity) {     super.onattach(activity);     try {         mcallbacks = (navigationdrawercallbacks) activity;     } catch (classcastexception e) {         throw new classcastexception("activity must implement navigationdrawercallbacks.");     } }  @override public void ondetach() {     super.ondetach();     mcallbacks = null; }  @override public void onsaveinstancestate(bundle outstate) {     super.onsaveinstancestate(outstate);     outstate.putint(state_selected_position, mcurrentselectedposition); }  @override public void onconfigurationchanged(configuration newconfig) {     super.onconfigurationchanged(newconfig);     // forward new configuration drawer toggle component.     mdrawertoggle.onconfigurationchanged(newconfig); }  @override public void oncreateoptionsmenu(menu menu, menuinflater inflater) {     // if drawer open, show global app actions in action bar. see     // showglobalcontextactionbar, controls top-left area of action bar.     if (mdrawerlayout != null && isdraweropen()) {         inflater.inflate(r.menu.global, menu);         showglobalcontextactionbar();     }     super.oncreateoptionsmenu(menu, inflater); }  @override public boolean onoptionsitemselected(menuitem item) {     if (mdrawertoggle.onoptionsitemselected(item)) {         return true;     }      return super.onoptionsitemselected(item); }  /**  * per navigation drawer design guidelines, updates action bar show global app  * 'context', rather what's in current screen.  */ private void showglobalcontextactionbar() {     actionbar actionbar = getactionbar();     actionbar.setdisplayshowtitleenabled(true);     actionbar.setnavigationmode(actionbar.navigation_mode_standard);     actionbar.settitle(r.string.app_name); }  private actionbar getactionbar() {     return ((appcompatactivity) getactivity()).getsupportactionbar(); }  /**  * callbacks interface activities using fragment must implement.  */ public static interface navigationdrawercallbacks {     /**      * called when item in navigation drawer selected.      */     void onnavigationdraweritemselected(int position); } } 

i want add navigation drawer in activity. register.java

import android.app.activity; import android.content.intent; import android.os.bundle; import android.view.menu; import android.view.menuitem; import android.view.view; import android.widget.button; import android.widget.edittext;  public class register extends activity { private edittext mrusername,mrpassword; private button mrcancel, mrsubmit;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_register);      mrusername = (edittext) findviewbyid(r.id.rusername);     mrpassword = (edittext) findviewbyid(r.id.rpassword);     mrcancel = (button) findviewbyid(r.id.rcancel);     mrsubmit = (button) findviewbyid(r.id.rsubmit);      mrcancel.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view v) {             intent ircancel = new intent(getapplicationcontext(), mainactivity.class);             startactivity(ircancel);             finish();         }     });      mrsubmit.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view v) {         }     }); }  @override public boolean oncreateoptionsmenu(menu menu) {     // inflate menu; adds items action bar if present.     getmenuinflater().inflate(r.menu.menu_register, menu);     return true; }  @override public boolean onoptionsitemselected(menuitem item) {     // handle action bar item clicks here. action bar     // automatically handle clicks on home/up button, long     // specify parent activity in androidmanifest.xml.     int id = item.getitemid();      //noinspection simplifiableifstatement     if (id == r.id.action_settings) {         return true;     }      return super.onoptionsitemselected(item); } }