Android应用开发揭秘的第5个程序3_4_cycle修改版和高仿版的源码注释

//打印应用程序的生命周期中执行的函数次序.   注:昨天的服务播放音乐,在公司把avd2.1模拟器删除重建后,可以听音乐.也一并删除了所有原安装的测试程序,不用一个一个删除了.

 

//刚进入程序时运行的函数

11-07 02:35:53.526: V/Gf_cycleActivity(401): onCreate
11-07 02:35:53.526: V/Gf_cycleActivity(401): onStart
11-07 02:35:53.526: V/Gf_cycleActivity(401): onResume
11-07 02:36:04.196: V/Gf_cycleActivity(401): onPause

 

//跳转到Gf_cycleActivity2程序时运行的函数

11-07 02:36:04.216: V/Gf_cycleActivity2(401): onCreate
11-07 02:36:04.216: V/Gf_cycleActivity2(401): onStart
11-07 02:36:04.216: V/Gf_cycleActivity2(401): onResume
11-07 02:36:04.336: V/Gf_cycleActivity(401): onStop
11-07 02:36:04.336: V/Gf_cycleActivity(401): onDestroy

 

//从Gf_cycleActivity2跳回到Gf_cycleActivity1程序时运行的函数

11-07 02:36:08.347: V/Gf_cycleActivity2(401): onPause
11-07 02:36:08.366: V/Gf_cycleActivity(401): onCreate
11-07 02:36:08.366: V/Gf_cycleActivity(401): onStart
11-07 02:36:08.366: V/Gf_cycleActivity(401): onResume
11-07 02:36:08.768: V/Gf_cycleActivity2(401): onStop
11-07 02:36:08.768: V/Gf_cycleActivity2(401): onDestroy

 

//Gf_cycleActivity1程序退出时运行的函数

11-07 02:36:10.548: V/Gf_cycleActivity(401): onPause
11-07 02:36:11.052: V/Gf_cycleActivity(401): onStop
11-07 02:36:11.052: V/Gf_cycleActivity(401): onDestroy

 

 

Activity01.java

package com.cycle;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class Activity01 extends Activity
{
 private static final String TAG = "Activity01";

 public void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  Log.v(TAG, "onCreate");
  
  Button button1 = (Button) findViewById(R.id.button1);
  /* 监听button的事件信息 */
  button1.setOnClickListener(new Button.OnClickListener() {
   public void onClick(View v)
   {
    /* 新建一个Intent对象 */
    Intent intent = new Intent();
    /* 指定intent要启动的类 */
    intent.setClass(Activity01.this, Activity02.class);
    /* 启动一个新的Activity */
    startActivity(intent);
    /* 关闭当前的Activity */
    Activity01.this.finish();
   }
  });
  /******************************/
  Button button3 = (Button) findViewById(R.id.button3);
  /* 监听button的事件信息 */
  button3.setOnClickListener(new Button.OnClickListener() {
   public void onClick(View v)
   {
    /* 关闭当前的Activity */
    Activity01.this.finish();
   }
  });
 }

 public void onStart()
 {
  super.onStart();
  Log.v(TAG, "onStart");
 }
 
 public void onResume()
 {
  super.onResume();
  Log.v(TAG, "onResume");
 }
 
 public void onPause()
 {
  super.onPause();
  Log.v(TAG, "onPause");
 }
 
 public void onStop()
 {
  super.onStop();
  Log.v(TAG, "onStop");
 }

 public void onDestroy()
 {
  super.onDestroy();
  Log.v(TAG, "onDestroy");
 }

 public void onRestart()
 {
  super.onRestart();
  Log.v(TAG, "onReStart");
 }
 
}

 

 

Activity02.java

package com.cycle;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class Activity02 extends Activity
{
 private static final String TAG = "Activity02";
 
 public void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main2);
  Log.v(TAG, "onCreate");
  Button button = (Button) findViewById(R.id.button2);
  /* 监听button的事件信息 */
  button.setOnClickListener(new Button.OnClickListener() {
   public void onClick(View v)
   {
    /* 新建一个Intent对象 */
    Intent intent = new Intent();
    /* 指定intent要启动的类 */
    intent.setClass(Activity02.this, Activity01.class);
    /* 启动一个新的Activity */
    startActivity(intent);
    /* 关闭当前的Activity */
    Activity02.this.finish();
   }
  });
 }

 public void onStart()
 {
  super.onStart();
  
  Log.v(TAG, "onStart");
 }
 
 public void onResume()
 {
  super.onResume();
  Log.v(TAG, "onResume");
 }
 
 public void onPause()
 {
  super.onPause();
  Log.v(TAG, "onPause");
 }
 
 public void onStop()
 {
  super.onStop();
  Log.v(TAG, "onStop");
 }

 public void onDestroy()
 {
  super.onDestroy();
  Log.v(TAG, "onDestroy");
 }

 public void onRestart()
 {
  super.onRestart();
  Log.v(TAG, "onReStart");
 }
}

 

 

Gf_cycleActivity.java

package packagename.Gfcycle;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class Gf_cycleActivity extends Activity
{
 
 private static final String TAG = "Gf_cycleActivity";
 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
  Log.v(TAG, "onCreate");
  
  Button button1 = (Button) findViewById(R.id.button1);
  /* 监听button的事件信息 */
  button1.setOnClickListener(new Button.OnClickListener() {
   public void onClick(View v)
   {
    /* 新建一个Intent对象 */
    Intent intent = new Intent();
    /* 指定intent要启动的类 */
    intent.setClass(Gf_cycleActivity.this, Gf_cycleActivity2.class);
    /* 启动一个新的Activity */
    startActivity(intent);
    /* 关闭当前的Activity */
    Gf_cycleActivity.this.finish();
   }
  });
  
  /******************************/
  Button button3 = (Button) findViewById(R.id.button3);
  /* 监听button的事件信息 */
  button3.setOnClickListener(new Button.OnClickListener() {
   public void onClick(View v)
   {
    /* 关闭当前的Activity */
    Gf_cycleActivity.this.finish();
   }
  });
    }
   

 public void onStart()
 {
  super.onStart();
  Log.v(TAG, "onStart");
 }
 
 public void onResume()
 {
  super.onResume();
  Log.v(TAG, "onResume");
 }
 
 public void onPause()
 {
  super.onPause();
  Log.v(TAG, "onPause");
 }
 
 public void onStop()
 {
  super.onStop();
  Log.v(TAG, "onStop");
 }

 public void onDestroy()
 {
  super.onDestroy();
  Log.v(TAG, "onDestroy");
 }

 public void onRestart()
 {
  super.onRestart();
  Log.v(TAG, "onReStart");
 }
}

 

 

Gf_cycleActivity2.java

package packagename.Gfcycle;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class Gf_cycleActivity2 extends Activity
{
 
 private static final String TAG = "Gf_cycleActivity2";
 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main2);
       
  Log.v(TAG, "onCreate");
  
  Button button1 = (Button) findViewById(R.id.button2);
  /* 监听button的事件信息 */
  button1.setOnClickListener(new Button.OnClickListener() {
   public void onClick(View v)
   {
    /* 新建一个Intent对象 */
    Intent intent = new Intent();
    /* 指定intent要启动的类 */
    intent.setClass(Gf_cycleActivity2.this, Gf_cycleActivity.class);
    /* 启动一个新的Activity */
    startActivity(intent);
    /* 关闭当前的Activity */
    Gf_cycleActivity2.this.finish();
   }
  });
  
 
    }
   

 public void onStart()
 {
  super.onStart();
  Log.v(TAG, "onStart");
 }
 
 public void onResume()
 {
  super.onResume();
  Log.v(TAG, "onResume");
 }
 
 public void onPause()
 {
  super.onPause();
  Log.v(TAG, "onPause");
 }
 
 public void onStop()
 {
  super.onStop();
  Log.v(TAG, "onStop");
 }

 public void onDestroy()
 {
  super.onDestroy();
  Log.v(TAG, "onDestroy");
 }

 public void onRestart()
 {
  super.onRestart();
  Log.v(TAG, "onReStart");
 }
}