Trying to activate android back button from webview within a fragment -


i'm trying button work here webview within fragment. code not compile can tell me i'm doing wrong?

i'm getting "webview accessed within inner class needs final" error.

also i'm getting "cannot resolve symbol handler" error.

package info.androidhive.slidingmenu;

import android.app.fragment; import android.os.bundle; import android.view.keyevent; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.webkit.websettings; import android.webkit.webview; import android.webkit.webviewclient;  public class pagesfragment extends fragment {      public pagesfragment(){}        @override     public view oncreateview(layoutinflater inflater, viewgroup container,             bundle savedinstancestate) {          view rootview = inflater.inflate(r.layout.fragment_pages, container, false);          webview webview = (webview) rootview.findviewbyid(r.id.webviewpages);         webview.getsettings().setjavascriptenabled(true);          webview.setwebviewclient(new webviewclient());         webview.loadurl("http://www.google.com");         websettings websettings = webview.getsettings();         websettings.setjavascriptenabled(true);          webview.setonkeylistener(new view.onkeylistener(){              public boolean onkey(view v, int keycode, keyevent event) {                 if ((keycode == keyevent.keycode_back) && webview.cangoback()) {                     handler.sendemptymessage(1);                     return true;                 }                 return false;             }          });          return rootview;       }    }

webview accessed within inner class needs final

webview variable needs final accessible inner class. declare it:

final webview webview = (webview) rootview.findviewbyid(r.id.webviewpages);

cannot resolve symbol handler

there no symbol called handler in current scope used from:

handler.sendemptymessage(1);

you need declare symbol.

if ask such questions, guess following tutorial. check tutorial again, missed something.


Comments

Post a Comment

Popular posts from this blog

c++ - Difference between pre and post decrement in recursive function argument -

i have following sample code used pre-decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(--c); cout << c << endl; return; } } this function give output input 4 : dp3 dp2 dp1 dp0 0 1 2 3 but when use post decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(c--); cout << c << endl; return; } } output goes in infinite loop dp4 can explain me in detail why happens ? this happens because function(c--) called same value of c , when finishes c decremented. recursively called, hence called same value no chance of return , hit stack overflow error. assume this, int x = 1, y = 0; y = x++ result y == 1 , x == 2. if y = ++x , bot x , y 2.
Read more

php - Nothing but 'run(); ' when browsing to my local project, how do I fix this? -

i added new project. made mistake in projectname.conf file in sites-available apache2, led me reinstalling apache2. after reinstalling , re-enabling projects on every page of every project .. <body> run(); </body> .. i've run composer update, restarted service, restarted pc, checked config files, tried disabling new project. there nothing in error log, , access.log: 127.0.0.1 - - [15/may/2015:01:40:47 +0200] "get / http/1.1" 304 181 "-" "mozilla/5.0 (x11; ubuntu; linux x86_64; rv:38.0) gecko/20100101 firefox/38.0" maybe i'm forgetting apache2 reinstall? don't think did different last time installed it. looks haven't setup php correctly. take @ this great guide , maybe you're forgetting link php config apache2.
Read more

php - How can I echo out this array? -

i don't know how go grabbing data in variable , put foreach loop. class tree{ private $info = array( array('name'=>'jim','state'=>'nu','company'=>'nu','phone'=>array('cell'=>'5615111111','office'=>'5611111111'),'email'=>array('primary'=>'exs@example.com','ex@there.com')), array('name'=>'joe smith','city'=>'phoenix','phone'=>'4805551111','email'=>'jsmith@some_email.com'), array('name'=>'john doe','city'=>'chandler','company'=>'doe co.','email'=>array('jdoe@gmail.com','personal'=>'email@email.com'),'phone'=>'6025550002') ); } if you're inside of class, can access private variable using $this->variablename . example, i...
Read more