android - How to view,compare and refresh current time? -

the aim of current application current time of phone , compare list of timerange i've set , view time remaining between current time , time range ( need refresh of view each seconds ).

example : current time = 11 pm time range = 11:10 pm

i view :

   x = 11h      = 11h10min                 view ( x); // refreshing each seconds     view ( a- x); // refreshing each seconds  

for moment suceeded view current time :

public class horairetempsreel extends activity {  private textview tvdisplaytime; private int hour; private int minute; private string curtime;  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.horairetempsreel);      setcurrenttimeonview(); }  // display current time public void setcurrenttimeonview() {      tvdisplaytime = (textview) findviewbyid(r.id.tvtime);       final calendar c = calendar.getinstance();     hour = c.get(calendar.hour_of_day);     minute = c.get(calendar.minute);      // set current time textview      resources curtimeres = getresources();     curtime = curtimeres.getstring(r.string.curtime,hour,minute);      tvdisplaytime.settext(curtime);   } 

}

but didn't suceed refreshed every seconds. i've done researchs , find out using handlers may solution concept little bit hard understand ( i'm beginner in android dev ) know if there way resolve problem.

( sorry bad english , i'm not native )

update : answer salauyou !

first, bad style keep date-time variables in ints or strings. there specialized class in java called date purpose.

ok try change possible .

and don't rely on default locale!

what mean ?

now timer scheduled , execute setcurrenttimeonview() method every 1 second until cancel timer.cancel()

ok tried adapt code give me program , gives :

@override     public void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.horairetempsreel);          timer timer = new timer();            timer.schedule(new timertask(){  // set timertask             @override            public void run(){            // override run() method               setcurrenttimeonview();                }          }, 0, 1000);      } 

i don't know put timer.cancel() , gives me error on logcat :

e/androidruntime(7701): android.view.viewrootimpl$calledfromwrongthreadexception: original thread created view hierarchy can touch views.