java - Checking Network Connectivity before dismissing Alert Dialog - RESOLVED -

so have webview based app. question when onreceivederror called when there internet loss, i'd

when user clicks "ok" on dialog check connectivity,

• if connectivity available dismiss alert , call web.reload();
• if there isn't web connectivity (wifi or mobile) call finish();

resolved following:

• changed alert dialog postive button following

  .setpositivebutton(r.string.alert_dialog_ok,new dialoginterface.onclicklistener() {           public void onclick(dialoginterface dialog,int id) { 

• the issue following

  dialoginterface paramdialoginterface,int paramint) 

context context;

public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);   this.context = this;   ...   @override public void onreceivederror(webview view, int errorcode,             string description, string failingurl) {         alertdialog.builder localbuilder2 = new alertdialog.builder(                 webview_main.this);         localbuilder2.settitle(r.string.webview_error_received_title);         localbuilder2.setmessage(r.string.webview_error_received);         localbuilder2.seticon(r.drawable.ic_launcher);         localbuilder2.setpositivebutton(r.string.alert_dialog_ok,new dialoginterface.onclicklistener() {             public void onclick(dialoginterface dialog,int id) {                  if(isnetworkavailible(context))                  web.reload();                  else                  finish();          }     };         localbuilder2.show();     }; 

isnetworkavailible class

   public boolean isnetworkavailible(context ctx) {      networkinfo info = (networkinfo) ((connectivitymanager) ctx             .getsystemservice(context.connectivity_service))             .getactivenetworkinfo();      if (info == null || !info.isconnected()) {         return false;     }     if (info.isroaming()) {         // here roaming option can change if want         // disable internet while roaming, return false         return false;     }     return true; } 

correcting answer:

    context context;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);             this.context = this;      }   @override public void onreceivederror(webview view, int errorcode,             string description, string failingurl) {         alertdialog.builder localbuilder2 = new alertdialog.builder(                 webview_main.this);         localbuilder2.settitle(r.string.webview_error_received_title);         localbuilder2.setmessage(r.string.webview_error_received);         localbuilder2.seticon(r.drawable.ic_launcher);         localbuilder2.setpositivebutton(r.string.alert_dialog_ok,             new dialoginterface.onclicklistener() {                 public void onclick(dialoginterface paramdialoginterface,int paramint) {                     if(haveinternet(context))                         web.reload();                     else                         finish();                 }             });         localbuilder2.show();     };  public boolean haveinternet(context ctx) {      networkinfo info = (networkinfo) ((connectivitymanager) ctx             .getsystemservice(context.connectivity_service)).getactivenetworkinfo();      if (info == null || !info.isconnected()) {         return false;     }     if (info.isroaming()) {         // here roaming option can change if want         // disable internet while roaming, return false         return false;     }     return true; }