Activity声明周期2

FirstActivity.java

 1 import android.os.Bundle;
 2 import android.view.View;
 3 import android.view.View.OnClickListener;
 4 import android.widget.Button;
 5 import android.app.Activity;
 6 import android.content.Intent;
 7 
 8 public class FirstActivity extends Activity {
 9     private Button myButton;
10     @Override
11     protected void onCreate(Bundle savedInstanceState) {
12         System.out.println("FirstActivity ---> onCreate     ");
13         super.onCreate(savedInstanceState);
14         setContentView(R.layout.activity_first);
15         myButton = (Button) findViewById(R.id.myButton);
16         myButton.setOnClickListener(new ButtonListener());
17     }
18     
19     @Override
20     protected void onDestroy() {
21         System.out.println("FirstAcvity --->onDestory");
22         super.onDestroy();
23     }
24 
25     @Override
26     protected void onPause() {
27         System.out.println("FirstAcvity --->onPause");
28         super.onPause();
29     }
30 
31     @Override
32     protected void onRestart() {
33         System.out.println("FirstAcvity --->onRestart");
34         super.onRestart();
35     }
36 
37     @Override
38     protected void onResume() {
39         System.out.println("FirstAcvity --->onResume");
40         super.onResume();
41     }
42 
43     @Override
44     protected void onStart() {
45         System.out.println("FirstAcvity --->onStart");
46         super.onStart();
47     }
48 
49     @Override
50     protected void onStop() {
51         System.out.println("FirstAcvity --->onStop");
52         super.onStop();
53     }
54     
55     
56     class ButtonListener implements OnClickListener{
57 
58         @Override
59         public void onClick(View v) {
60             Intent intent = new Intent();
61             intent.setClass(FirstActivity.this, SecondActivity.class);
62             FirstActivity.this.startActivity(intent);
63         }
64         
65     }
66 }

activity_activity.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:orientation="vertical"
 4     android:layout_width="fill_parent"
 5     android:layout_height="fill_parent"
 6     >
 7 <TextView  
 8     android:layout_width="fill_parent" 
 9     android:layout_height="wrap_content" 
10     android:text="@string/hello_world"
11     />
12 <Button
13     android:id="@+id/myButton"
14     android:layout_width="fill_parent"
15     android:layout_height="wrap_content"
16     android:text="@string/first_button"
17     />
18 </LinearLayout>

SecondActivity.java

 1 import android.app.Activity;
 2 import android.content.Intent;
 3 import android.os.Bundle;
 4 import android.view.View;
 5 import android.view.View.OnClickListener;
 6 import android.widget.Button;
 7 
 8 public class SecondActivity extends Activity{
 9     private Button secondButton;
10     @Override
11     protected void onCreate(Bundle savedInstanceState) {
12         System.out.println("SecondActivity--->onCreate");
13         super.onCreate(savedInstanceState);
14         setContentView(R.layout.activity_second);
15         
16         secondButton = (Button)findViewById(R.id.secondButton);
17         secondButton.setOnClickListener(new ButtonListener());
18     }
19     
20     
21     @Override
22     protected void onDestroy() {
23         System.out.println("SecondActivity--->onDestory");
24         super.onDestroy();
25     }
26 
27     @Override
28     protected void onPause() {
29         System.out.println("SecondActivity--->onPause");
30         super.onPause();
31     }
32 
33     @Override
34     protected void onRestart() {
35         System.out.println("SecondActivity--->onRestart");
36         super.onRestart();
37     }
38 
39     @Override
40     protected void onResume() {
41         System.out.println("SecondActivity--->onResume");
42         super.onResume();
43     }
44 
45     @Override
46     protected void onStart() {
47         System.out.println("SecondActivity--->onStart");
48         super.onStart();
49     }
50 
51     @Override
52     protected void onStop() {
53         System.out.println("SecondActivity--->onStop");
54         super.onStop();
55     }
56     
57     
58     class ButtonListener implements OnClickListener{
59 
60         @Override
61         public void onClick(View v) {
62             Intent intent = new Intent();
63             intent.setClass(SecondActivity.this, FirstActivity.class);
64             SecondActivity.this.startActivity(intent);
65         }
66         
67     }
68 }

activity_second.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:orientation="vertical"
 4     android:layout_width="fill_parent"
 5     android:layout_height="wrap_content"
 6     >
 7     <TextView 
 8         android:layout_width="fill_parent"
 9         android:layout_height="wrap_content"
10         />
11        <Button 
12            android:id="@+id/secondButton"
13            android:layout_width="fill_parent"
14            android:layout_height="wrap_content"
15            android:text="@string/second_button"
16            />
17 </LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.mars.activity05"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="4"
        android:targetSdkVersion="18" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.mars.activity05.FirstActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".SecondActivity"
                  android:label="SecondActivity"
                  android:theme="@android:style/Theme.Dialog"/>
        <!--android:theme="@android:style/Theme.Dialog"/>,表示将这个Activity的格式设置为，对话框的形式-->
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">Activity05</string>
    <string name="action_settings">Settings</string>
    <string name="hello_world">Hello world!</string>
    <string name="first_button">FirstButton</string>
    <string name="second_button">SecondButton</string>

</resources>