java - How to put this piece of code into an AsyncTask or a Thread -


im new in threads , asynctask's , know how can run following code in background:

i have method checks if have active internet conection, im trying show progressdialog before calling method , dismissing dialog when succeed or fail:

oncreate:

progress = progressdialog.show(this, "dialog title","dialog message", true);             if(isonline()){}else{}

my method.

public boolean isonline() {          try {             process p1 = java.lang.runtime.getruntime().exec("ping -c 1 www.karlol.com");             int returnval = p1.waitfor();             boolean reachable = (returnval==0);             canshowview = true;             progress.dismiss();             return reachable;          } catch (exception e) {             // todo auto-generated catch block             e.printstacktrace();         }         return false;     }

the method works (it tells me if there's active internet connection) problem alertdialog not working to, im pretty sure if put thread or asyntask should work want.

update: use connectivitymanager check if user connected network, not verify connection

private boolean isnetworkavailable() {         connectivitymanager connectivitymanager                = (connectivitymanager) getsystemservice(context.connectivity_service);         networkinfo activenetworkinfo = connectivitymanager.getactivenetworkinfo();         return activenetworkinfo != null && activenetworkinfo.isconnected();     }

thanks.

i dont think best way result looking here is

(asynctask<string,string,boolean>(){     protected boolean doinbackground(string... params) {    try {         process p1 = java.lang.runtime.getruntime().exec("ping -c 1 www.karlol.com");         int returnval = p1.waitfor();         boolean reachable = (returnval==0);         canshowview = true;         progress.dismiss();         return reachable;      } catch (exception e) {         // todo auto-generated catch block         e.printstacktrace();     }    return false }      protected void onpostexecute(boolean result)  {     /// here     super.onpostexecute(result); } }).execute()

i @ using better solution problem

 public static boolean isnetworkavailable(context context) {     connectivitymanager connectivity = (connectivitymanager) context             .getsystemservice(context.connectivity_service);      if (connectivity == null) {         return false;     } else {         networkinfo[] info = connectivity.getallnetworkinfo();         if (info != null) {             (int = 0; < info.length; i++) {                 if (info[i].getstate() == networkinfo.state.connected) {                     return true;                 }             }         }     }     return false; }

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