Android倒计时功能的实现(CountDownTimer）

package com.androidcountdowntimer2;

import android.app.Activity;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.widget.TextView;
/**
 * Android倒计时功能的实现(CountDownTimer）
 * @author zhongyao
 *
 */
public class MainActivity extends Activity {

	private MyCount mc;  
    private TextView tv;  
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);  
        tv = (TextView)findViewById(R.id.show);  
        mc = new MyCount(30000, 1000);  
        mc.start();  
    }
  
    /*定义一个倒计时的内部类*/  
    class MyCount extends CountDownTimer {     
        public MyCount(long millisInFuture, long countDownInterval) {     
            super(millisInFuture, countDownInterval);     
        }     
             
        @Override     
        public void onTick(long millisUntilFinished) {  
             tv.setText("请等待：" + millisUntilFinished / 1000 + "秒...");     
        }    
        
        @Override     
        public void onFinish() {     
            tv.setText("finish");        
        }
    }  
    
    @Override  
    protected void onDestroy() {  
        super.onDestroy();  
        mc.cancel();  
    } 
}

Android倒计时功能的实现(CountDownTimer）

原文：http://blog.csdn.net/u012440207/article/details/41015131