android线程的创建与销毁

package com.tutor.thread;

import android.app.Activity;

import android.os.Bundle;

import android.os.Handler;

import android.util.Log;

public class ThreadDemo extends Activity {

private static final String TAG = "ThreadDemo";

private int count = 0;

private Handler mHandler = new Handler();

private Runnable mRunnable = new Runnable() {

public void run() {

//为了方便 查看，我们用Log打印出来

Log.e(TAG, Thread.currentThread().getName() + " " +count);

count++;

setTitle("" +count);

//每2秒执行一次

mHandler.postDelayed(mRunnable, 2000);

}

};

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

//通过Handler启动线程

mHandler.post(mRunnable);

}

@Override

protected void onDestroy() {

//将线程销毁掉

mHandler.removeCallbacks(mRunnable);

super.onDestroy();

}

}