package com.example.admin.activity_stop_watch;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {
    TextView myOutput;
    TextView myRec;
    Button myBtnStart;
    Button myBtnRec;

    final static int Init =0;
    final static int Run =1;
    final static int Pause =2;

    int cur_Status = Init; //ÇöÀçÀÇ »óŸ¦ ÀúÀåÇÒº¯¼ö¸¦ ÃʱâÈ­ÇÔ.
    int myCount=1;
    long myBaseTime;
    long myPauseTime;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        myOutput = (TextView) findViewById(R.id.time_out);
        myRec = (TextView) findViewById(R.id.record);
        myBtnStart = (Button) findViewById(R.id.btn_start);
        myBtnRec = (Button) findViewById(R.id.btn_rec);




    }

    @Override
    protected void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();
    }

    public void myOnClick(View v){
        switch(v.getId()){
            case R.id.btn_start: //½ÃÀÛ¹öÆ°À» Ŭ¸¯ÇßÀ»¶§ ÇöÀç »óÅ°ª¿¡ µû¶ó ´Ù¸¥ µ¿ÀÛÀ» ÇÒ¼öÀÖ°Ô²û ±¸Çö.
                switch(cur_Status){
                    case Init:
                        myBaseTime = SystemClock.elapsedRealtime();
                        System.out.println(myBaseTime);
                        //myTimerÀ̶ó´Â Çڵ鷯¸¦ ºó ¸Þ¼¼Áö¸¦ º¸³»¼­ È£Ãâ
                        myTimer.sendEmptyMessage(0);
                        myBtnStart.setText("¸ØÃã"); //¹öÆ°ÀÇ ¹®ÀÚ"½ÃÀÛ"À» "¸ØÃã"À¸·Î º¯°æ
                        myBtnRec.setEnabled(true); //±â·Ï¹öÆ° È°¼º
                        cur_Status = Run; //ÇöÀç»óŸ¦ ·±»óÅ·Πº¯°æ
                        break;
                    case Run:
                        myTimer.removeMessages(0); //Çڵ鷯 ¸Þ¼¼Áö Á¦°Å
                        myPauseTime = SystemClock.elapsedRealtime();
                        myBtnStart.setText("½ÃÀÛ");
                        myBtnRec.setText("¸®¼Â");
                        cur_Status = Pause;
                        break;
                    case Pause:
                        long now = SystemClock.elapsedRealtime();
                        myTimer.sendEmptyMessage(0);
                        myBaseTime += (now- myPauseTime);
                        myBtnStart.setText("¸ØÃã");
                        myBtnRec.setText("±â·Ï");
                        cur_Status = Run;
package com.example.admin.activity_stop_watch;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {
    TextView myOutput;
    TextView myRec;
    Button myBtnStart;
    Button myBtnRec;

    final static int Init =0;
    final static int Run =1;
    final static int Pause =2;

    int cur_Status = Init;
    int myCount=1;
    long myBaseTime;
    long myPauseTime;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        myOutput = (TextView) findViewById(R.id.time_out);
        myRec = (TextView) findViewById(R.id.record);
        myBtnStart = (Button) findViewById(R.id.btn_start);
        myBtnRec = (Button) findViewById(R.id.btn_rec);
    }

    @Override
    protected void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();
    }

    public void myOnClick(View v){
        switch(v.getId()){
            case R.id.btn_start:
                switch(cur_Status){
                    case Init:
                        myBaseTime = SystemClock.elapsedRealtime();
                        System.out.println(myBaseTime);
                        myTimer.sendEmptyMessage(0);
                        myBtnStart.setText("¸ØÃã");
                        myBtnRec.setEnabled(true);
                        cur_Status = Run;
                        break;
                    case Run:
                        myTimer.removeMessages(0);
                        myPauseTime = SystemClock.elapsedRealtime();
                        myBtnStart.setText("½ÃÀÛ");
                        myBtnRec.setText("¸®¼Â");
                        cur_Status = Pause;
                        break;
                    case Pause:
                        long now = SystemClock.elapsedRealtime();
                        myTimer.sendEmptyMessage(0);
                        myBaseTime += (now- myPauseTime);
                        myBtnStart.setText("¸ØÃã");
                        myBtnRec.setText("±â·Ï");
                        cur_Status = Run;
                        break;
                }
                break;
            case R.id.btn_rec:
                switch(cur_Status){
                    case Run:

                        String str = myRec.getText().toString();
                        str +=  String.format("%d. %s\n",myCount,getTimeOut());
                        myRec.setText(str);
                        myCount++;

                        break;
                    case Pause:
                        myTimer.removeMessages(0);

                        myBtnStart.setText("½ÃÀÛ");
                        myBtnRec.setText("±â·Ï");
                        myOutput.setText("00:00:00");

                        cur_Status = Init;
                        myCount = 1;
                        myRec.setText("");
                        myBtnRec.setEnabled(false);
                        break;
                }
                break;
        }
    }

    Handler myTimer = new Handler(){
        public void handleMessage(Message msg){
            myOutput.setText(getTimeOut());
            myTimer.sendEmptyMessage(0);
        }
    };
    String getTimeOut(){
        long now = SystemClock.elapsedRealtime();
        long outTime = now - myBaseTime;
        String easy_outTime = String.format("%02d:%02d:%02d", outTime/1000 / 60, (outTime/1000)%60,(outTime%1000)/10);
        return easy_outTime;
    }
}