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");

}

}