android - Start timer on a button click and stop it with 10 button clicks -

so far have button tap counter working , stops @ 10 taps. problem timer. every time press button resets timer. want button start timer on first click , stop timer on 10th click, stumped , not know how code this. know how can working?

java code:

package com.example.thirtytapgametest;  import android.os.bundle; import android.os.handler; import android.os.systemclock; import android.view.view; import android.widget.imagebutton; import android.widget.textview; import android.app.activity;   public class mainactivity extends activity {  private int mcount = 0;  private imagebutton startbutton;  private textview timervalue;  private long starttime = 0l;  private handler customhandler = new handler();  long timeinmilliseconds = 0l; long timeswapbuff = 0l; long updatedtime = 0l;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      final textview counttextview = (textview) findviewbyid(r.id.textviewcount);      timervalue = (textview) findviewbyid(r.id.timervalue);           startbutton = (imagebutton) findviewbyid(r.id.imagebutton1);     startbutton.setonclicklistener(new view.onclicklistener() {           public void onclick(view view) {                         starttime = systemclock.uptimemillis();             customhandler.postdelayed(updatetimerthread, 0);              mcount++;             counttextview.settext("taps: " + mcount);             if(mcount == 10) {view.setenabled(false);}         }                });  }    private runnable updatetimerthread = new runnable() {      public void run() {          timeinmilliseconds = systemclock.uptimemillis() - starttime;          updatedtime = timeswapbuff + timeinmilliseconds;          int secs = (int) (updatedtime / 1000);         int mins = secs / 60;         secs = secs % 60;         int milliseconds = (int) (updatedtime % 1000);         timervalue.settext("" + mins + ":"                 +string.format("%02d", secs) + ":"                 +string.format("%03d", milliseconds));         customhandler.postdelayed(this, 0);     }     };  } 

xml code:

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:paddingbottom="@dimen/activity_vertical_margin"     android:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     tools:context=".mainactivity"      android:background="@drawable/thirty_tap_game_background">  <imagebutton     android:id="@+id/imagebutton1"     android:layout_width="200dp"     android:layout_height="100dp"     android:layout_alignparentbottom="true"     android:layout_centerhorizontal="true"     android:layout_marginbottom="138dp"     android:background="@drawable/test_play_button" />  <textview     android:id="@+id/timervalue"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_above="@+id/imagebutton1"     android:layout_centerhorizontal="true"     android:layout_marginbottom="32dp"     android:textsize="50sp"     android:textcolor="#ff0000"     android:text="@string/timerval" />  <textview     android:id="@+id/textviewcount"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignparentbottom="true"     android:layout_centerhorizontal="true"     android:layout_marginbottom="73dp"     android:text="@string/countval"      android:textsize="30sp"     android:textcolor="#ff0000"/>  </relativelayout> 

below code resolve problem. 'timeswapbuff. unused, i've commented line of code.

protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          final textview counttextview = (textview) findviewbyid(r.id.textviewcount);          timervalue = (textview) findviewbyid(r.id.timervalue);         startbutton = (imagebutton) findviewbyid(r.id.imagebutton1);         startbutton.setonclicklistener(new view.onclicklistener() {              public void onclick(view view) {                  if (mcount ==0) {                 starttime = systemclock.uptimemillis();                 customhandler.postdelayed(updatetimerthread, 0);                 }                      mcount++;                     counttextview.settext("taps: " + mcount);                     if(mcount == 10) {                         view.setenabled(false);                          customhandler.removecallbacks(updatetimerthread);                         }             }                    });      }      private runnable updatetimerthread = new runnable() {           public void run() {             updatedtime = systemclock.uptimemillis() - starttime;             // updatedtime = timeswapbuff + timeinmilliseconds;              int secs = (int) (updatedtime / 1000);             int mins = secs / 60;             secs = secs % 60;             int milliseconds = (int) (updatedtime % 1000);             timervalue.settext("" + mins + ":"                     +string.format("%02d", secs) + ":"                     +string.format("%03d", milliseconds));             customhandler.postdelayed(this, 0);         }          };     }