วันอังคารที่ 3 กรกฎาคม พ.ศ. 2555

Android Timer

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 Android Timer Example Code

 TimerActivity.java Code

package android.code.timer;

import android.app.Activity;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.CountDownTimer;
import android.os.Handler;
import android.os.SystemClock;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;


public class TimerActivity extends Activity {
     
    TextView mButtonLabel;
   
    // Counter of time since app started ,a background task
    private long mStartTime = 0L;
    private TextView mTimeLabel,mTimerLabel;
   
    // Handler to handle the message to the timer task
    private Handler mHandler = new Handler();
          
    static final int UPDATE_INTERVAL = 1000;
   
    String timerStop1;
   
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
                                         
        mTimeLabel = (TextView) findViewById(R.id.countDownTv);
        mButtonLabel = (TextView) findViewById(R.id.countDown);
               
        mTimerLabel = (TextView) findViewById(R.id.textTimer);
        mButtonLabel = (TextView) findViewById(R.id.countDown);
       
       
        Button countDownButton = (Button) findViewById(R.id.countDown);      
        countDownButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view){
                                   
                  CountDownTimer timer1 = new CountDownTimer(90000,1000){

                        @Override
                        public void onFinish() {
                             
                              mTimeLabel.setText("Done!");
                        }

                        @Override
                        public void onTick(long millisUntilFinished) {                               
                             
                              int seconds = (int) (millisUntilFinished / 1000);
                              int minutes = seconds / 60;
                              seconds = seconds % 60;
                             
                              mTimeLabel.setText("" + minutes + ":"
                                                              + String.format("%02d", seconds));
                             
                        }          
                  }.start();
                 
            }
        });
              
       
        Button timerStartButton = (Button) findViewById(R.id.btnTimer);      
        timerStartButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view){
                 
                  if(mStartTime == 0L){
                  mStartTime = SystemClock.uptimeMillis();
                  mHandler.removeCallbacks(mUpdateTimeTask);
                  mHandler.postDelayed(mUpdateTimeTask, 100);
                 
                }                                          
            }
        });
       
        Button timerStopButton = (Button) findViewById(R.id.btnTimerStop);      
        timerStopButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view){
                             
                  mHandler.removeCallbacks(mUpdateTimeTask);
                 
                  mTimerLabel.setText(timerStop1);
                  mStartTime = 0L;
                                   
            }
        });
                    
    } // OnCreate
   
       
    private Runnable mUpdateTimeTask = new Runnable(){

            public void run() {
                 
                  final long start = mStartTime;
                  long millis = SystemClock.uptimeMillis()- start;
                             
                  int seconds = (int) (millis / 1000);
                  int minutes = seconds / 60;
                  seconds = seconds % 60;
                 
                  mTimerLabel.setText("" + minutes + ":"
                                                  + String.format("%02d", seconds));                             
                 
                  timerStop1 = minutes + ":"
                                + String.format("%02d", seconds);
                                               
                  mHandler.postDelayed(this, 200);               
                 
            }    
    };
       
    /*
    @Override
    protected void onPause() {
      mHandler.removeCallbacks(mUpdateTimeTask);
      super.onPause();
    }
    @Override
    protected void onResume() {
      super.onResume();
      mHandler.postDelayed(mUpdateTimeTask, 100);
    }
    */
   
} // class

main.xml Code

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#5f0101"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Timer Counter"
        android:textColor="#00FFFF"
        android:textStyle="bold"
            android:textSize="30dp"/>

      <LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_marginLeft="5dp"
          android:layout_marginRight="5dp"
          android:layout_marginTop="10dp"
          android:background="#464444" >
         
          <TextView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_gravity="bottom"
              android:layout_marginLeft="5dp"
              android:text="Time Left "
              android:textColor="#FFFF00"
              android:textSize="20dp" />

            <TextView
                android:id="@+id/countDownTv"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom"
                android:text="1.30"
                android:textColor="#00FF00"
                android:textSize="30dp" />

            <Button
                android:id="@+id/countDown"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="5dp"
                android:layout_marginTop="5dp"
                android:text="Count Down Timer" />

      </LinearLayout>

      <LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_marginLeft="5dp"
          android:layout_marginRight="5dp"
          android:layout_marginTop="20dp"
          android:background="#464444"
          android:orientation="vertical" >

            <TextView
                android:id="@+id/textTimer"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="10dp"
                android:text="0.00"
                android:textColor="#FFFFFF"
                android:textSize="70dp" />

            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="5dp"
                android:layout_marginBottom="10dp"
                android:orientation="horizontal" >

                  <Button
                      android:id="@+id/btnTimer"
                      android:layout_width="100dp"
                      android:layout_height="100dp"
                      android:text="Timer Start" />

                  <Button
                      android:id="@+id/btnTimerStop"
                      android:layout_width="100dp"
                      android:layout_height="100dp"
                      android:text="Timer Stop" />

            </LinearLayout>

      </LinearLayout>

</LinearLayout>


Download Android Timer Example Code
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