java - #Project - WebView goBack() Return -

after searching on stackoverflow , testing codes, return goback(); doesn't work.

i webview, - url work - zoom work

but need reload last page code added :

mainactivity.java

       package org.sbynight.app;      import android.app.activity;     import android.app.alertdialog;     import android.content.dialoginterface;     import android.os.bundle;     import android.webkit.webview;     import android.webkit.webviewclient;     import android.webkit.webchromeclient;     import android.view.keyevent;      public class mainactivity extends activity {          webview view;          public void oncreate(bundle savedinstancestate) {             super.oncreate(savedinstancestate);             setcontentview(r.layout.activity_main);             webview view = (webview) this.findviewbyid(r.id.webview1);              //url du website - not change              string url = "http://www.mydomaine.com/";              //loads webview zoomed out             view.getsettings().setsupportzoom(true);             view.getsettings().setbuiltinzoomcontrols(true);              //loads webview client             view.getsettings().setloadwithoverviewmode(true);             view.setwebviewclient(new webviewclient());             view.setwebchromeclient(new webchromeclient());             view.getsettings().setappcacheenabled(false);              //loads url             view.loadurl(url);           }               //loads return url on lastpage     @override     public boolean onkeydown(int keycode, keyevent event) {         if ((keycode == keyevent.keycode_back) && this.view.cangoback()) {             this.view.goback();             return true;         } else {              new alertdialog.builder(this)                 .seticon(android.r.drawable.ic_dialog_alert)                 .settitle("fermer sbynight")                 .setmessage("etes-vous sur de vouloir quittez sbynight?")                 .setpositivebutton("oui", new dialoginterface.onclicklistener()             {                 @override                 public void onclick(dialoginterface dialog, int which) {                     finish();                     }              })             .setnegativebutton("non", null)             .show();         }          return true;           }     }   

ps: tested gopressed(); doesn't work too!

so want go last page if there 1 go when key pressed?

use following:

@override public void onbackpressed() {      if(this.view.cangoback())      {         this.view.goback();     }      else {              new alertdialog.builder(this)                 .seticon(android.r.drawable.ic_dialog_alert)                 .settitle("fermer sbynight")                 .setmessage("etes-vous sur de vouloir quittez sbynight?")                 .setpositivebutton("oui", new dialoginterface.onclicklistener()             {                  @override                  public void onclick(dialoginterface dialog, int which)                   {                     finish();                      }              })             .setnegativebutton("non", null)             .show();        }     } } 

i haven't checked rest of code. invokable function.