android 定时器 timer简单例子

package MyTimer.code;

import java.util.Timer;
import java.util.TimerTask;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;

public class MainActivity extends Activity {
    /** Called when the activity is first created. */
 
 private int iCount = 0;
 
 Timer timer = new Timer();
 Handler handler = new Handler()
 {
  @Override
  public void handleMessage(Message msg )
  {
   switch(msg.what)
   {
   case 1:
    if( iCount % 2 == 0 )
     setTitle("kiss you");
    else
     setTitle("kiss me");
    iCount ++;
    
    break;
   }
   
   super.handleMessage(msg);
  }
 };
 
 
 TimerTask task = new TimerTask()
 {
  @Override
  public void run()
  {
   Message msg = new Message();
   msg.what = 1;
   handler.sendMessage(msg);
  }
 };
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        timer.schedule(task,1000,5000);//  1000  1秒之后执行  5000   周期为5秒
    }
}