android - i want TimerTask pause and resume -

i working in game have need use time update in every second.i using timertask.i want pause time when clicked on button , want resume again when clicked on resume button other activity.how please me.

t=new timer(); { t.scheduleatfixedrate(new timertask() { public void run() { runonuithread(new runnable() {  @override public void run()  { textview tv = (textview) findviewbyid(r.id.time); tv.settext(string.format("%02d:%02d",minute,seconds));  time += 1; seconds += 1; if(seconds==60) { seconds=0; } minute=time/60; }                      });                 }             }, 0, 1000);          } 

try this want copy , paste   public class mainactivity extends activity { edittext t;     button b;     button b2;     timer timer;     public void oncreate(bundle savedinstancestate)      {         super.oncreate(savedinstancestate);         setcontentview(r.layout.main);         b=(button)findviewbyid(r.id.button1);         b2=(button)findviewbyid(r.id.button2);         t=(edittext)findviewbyid(r.id.edittext1);         b.setbackgroundresource(android.r.color.holo_green_dark);         timer = new timer();         timertask updateprofile = new customtimertask(mainactivity.this);         timer.scheduleatfixedrate(updateprofile, 0,1000);  b.setonclicklistener(new onclicklistener() {  @override public void onclick(view v) {     // todo auto-generated method stub     timer.cancel();             }         }); b2.setonclicklistener(new onclicklistener() {  @override public void onclick(view v) {                 // todo auto-generated method stub      timer = new timer();     timertask updateprofile = new customtimertask(mainactivity.this);     timer.scheduleatfixedrate(updateprofile, 0,1000);             }         });     }       class customtimertask extends timertask {          private context context;         private handler mhandler = new handler();          // write custom constructor pass context         public customtimertask(context con) {             this.context = con;         }          @override         public void run() {      new thread(new runnable() {     @override     public void run() {     mhandler.post(new runnable() {     @override     public void run() {         calendar c =calendar.getinstance();          int seconds = c.get(calendar.second);         int min= c.get(calendar.minute);         int hour= c.get(calendar.hour);                                 t.settext(hour+":"+min+":"+seconds);                         }                     });                 }             }).start();          }      } }