java源码如下:

1、MainActivity.java源码

  1 package com.example.responsetest;
  2 import android.app.Activity;
  3 import android.content.Intent;
  4 import android.content.Loader.ForceLoadContentObserver;
  5 import android.graphics.Color;
  6 import android.os.Bundle;
  7 import android.view.Menu;
  8 import android.view.MenuItem;
  9 import android.view.View;
 10 import android.view.View.OnClickListener;
 11 import android.widget.Button;
 12 import android.widget.ImageButton;
 13 import android.widget.TextView;
 14 
 15 //方法六:通用场景,特别是某个控件的点击方法需要实现的逻辑较为复杂的时候
 16 public class MainActivity extends Activity{
 17     TextView textview;
 18     @Override
 19     protected void onCreate(Bundle savedInstanceState) {
 20         super.onCreate(savedInstanceState);
 21         setContentView(R.layout.activity_main);
 22         textview=(TextView)findViewById(R.id.textview);//1.初始化值
 23     }
 24     public void onTextViewClick(View view) { //2.传入形参
 25         //跳转页面
 26         Intent intent=new Intent(MainActivity.this,SecondActivity.class);
 27         startActivity(intent);
 28         
 29         //textview.setTextColor(Color.GREEN);//点击变色
 30     }
 31 }
 32 
 33 
 34 /*
 35 //方法五:适用于不同类型的控件,使需要实现的功能在一个onClick()方法中实现
 36 public class MainActivity extends Activity implements OnClickListener{
 37     @Override
 38     protected void onCreate(Bundle savedInstanceState) {
 39         super.onCreate(savedInstanceState);
 40         setContentView(R.layout.activity_main);
 41         Button button1=(Button)findViewById(R.id.button1);
 42         Button button2=(Button)findViewById(R.id.button2);
 43         ImageButton button3=(ImageButton)findViewById(R.id.imagebutton);
 44         button1.setOnClickListener(this);
 45         button2.setOnClickListener(this);
 46         button3.setOnClickListener(this);
 47     }
 48     
 49     @Override
 50     public void onClick(View arg0) {
 51         switch (arg0.getId()) {
 52         case R.id.button1:
 53         case R.id.button2:
 54         case R.id.imagebutton:
 55             Intent intent=new Intent(MainActivity.this,SecondActivity.class);
 56             startActivity(intent);
 57             break;
 58         default:
 59             break;
 60         }
 61     }
 62 }
 63 */
 64 
 65 /*
 66 //方法四:与方法三差别不大:
 67 public class MainActivity extends Activity{
 68     @Override
 69     protected void onCreate(Bundle savedInstanceState) {
 70         super.onCreate(savedInstanceState);
 71         setContentView(R.layout.activity_main);
 72         Button button1=(Button)findViewById(R.id.button1);
 73         Button button2=(Button)findViewById(R.id.button2);
 74         button1.setOnClickListener(new MyOnClick());
 75         button2.setOnClickListener(new MyOnClick());
 76     }
 77     private class MyOnClick implements OnClickListener{
 78         @Override
 79         public void onClick(View arg0) {
 80             switch (arg0.getId()) {
 81             case R.id.button1:
 82             case R.id.button2:
 83                 Intent intent=new Intent(MainActivity.this,SecondActivity.class);
 84                 startActivity(intent);
 85                 break;
 86             default:
 87                 break;
 88             }    
 89         }
 90     }
 91 }
 92 */
 93 /*
 94 //方法三:适用于多个同类型的控件(比如Button)等
 95 public class MainActivity extends Activity{    
 96     Button[] buttons;//定义一个Button数组,封装多个同类型的Button控件(成员变量有默认的初始值)
 97     //初始化函数
 98     @Override
 99     protected void onCreate(Bundle savedInstanceState){
100         super.onCreate(savedInstanceState);
101         setContentView(R.layout.activity_main);
102         buttons=new Button[]{(Button)findViewById(R.id.button1),(Button)findViewById(R.id.button2)};
103         for(Button button:buttons) {
104             button.setOnClickListener(listener);
105         }}
106     //成员变量:
107     private OnClickListener listener=new OnClickListener() {
108         @Override
109         public void onClick(View arg0) {
110             switch (arg0.getId()) {
111             case R.id.button1:
112             case R.id.button2:
113                 Intent intent=new Intent(MainActivity.this,SecondActivity.class);
114                 startActivity(intent);
115                 break;
116             default:
117                 break;
118             }}};
119 }
120 */
121 
122 /*
123 
124 public class MainActivity extends Activity {
125     @Override
126     protected void onCreate(Bundle savedInstanceState) {
127         super.onCreate(savedInstanceState);
128         setContentView(R.layout.activity_main);
129         Button button=(Button)findViewById(R.id.button2);
130         button.setOnClickListener(new MyOnclickListener());
131     }
132     //事件响应方法二:定义内部类实现监听接口
133     public class MyOnclickListener implements OnClickListener{
134         @Override
135         public void onClick(View arg0) {
136             Intent intent=new Intent(MainActivity.this,SecondActivity.class);
137             startActivity(intent);
138         }
139     }
140 }
141 
142 */
143 /*
144 public class MainActivity extends Activity {
145     @Override
146     protected void onCreate(Bundle savedInstanceState) {
147         super.onCreate(savedInstanceState);
148         setContentView(R.layout.activity_main);
149         
150         //事件响应方法一:使用匿名内部类,适用于任何场景        
151         findViewById(R.id.button1).setOnClickListener(new OnClickListener() {
152             @Override
153             public void onClick(View v) {
154                 Intent intent=new Intent(MainActivity.this,SecondActivity.class);
155                 startActivity(intent);
156             }
157         });;
158     }
159 }
160 */

 2、SecondActivity.java源码

 1 package com.example.responsetest;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 
 6 public class SecondActivity extends Activity{
 7     @Override
 8     protected void onCreate(Bundle savedInstanceState) {
 9         super.onCreate(savedInstanceState);
10         setContentView(R.layout.activity_second);
11     }
12 }

 

xml代码如下:

1、activity_main.xml代码(第一界面):

1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:id="@+id/main_activity"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     android:orientation="vertical"
 7     android:paddingBottom="@dimen/activity_vertical_margin"
 8     android:paddingLeft="@dimen/activity_horizontal_margin"
 9     android:paddingRight="@dimen/activity_horizontal_margin"
10     android:paddingTop="@dimen/activity_vertical_margin"
11     tools:context="com.example.responsetest.MainActivity" >
12 
13     <Button
14         android:id="@+id/button1"
15         android:layout_width="match_parent"
16         android:layout_height="wrap_content"
17         android:text="匿名内部类" />
18     
19      <Button 
20         android:id="@+id/button2"
21         android:layout_width="match_parent"
22         android:layout_height="wrap_content"
23         android:text="内部类"/>
24      <ImageButton 
25          android:id="@+id/imagebutton"
26          android:layout_width="100dip"
27          android:layout_height="100dip"
28          android:scaleType="fitCenter"
29          android:src="@drawable/ic_launcher"
30          />
31      <TextView 
32          android:id="@+id/textview"
33          android:layout_width="match_parent"
34          android:layout_height="wrap_content"
35          android:onClick="onTextViewClick"
36          android:text="点击事件"
37          android:textSize="50sp"
38          />
39 
40 </LinearLayout>

 

2、activity_second.xml源码(第二界面):

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:paddingBottom="@dimen/activity_vertical_margin"
 6     android:paddingLeft="@dimen/activity_horizontal_margin"
 7     android:paddingRight="@dimen/activity_horizontal_margin"
 8     android:paddingTop="@dimen/activity_vertical_margin"
 9     tools:context="com.example.responsetest.MainActivity" >
10 
11     <TextView
12         android:id="@+id/secondactivity"
13         android:layout_width="match_parent"
14         android:layout_height="wrap_content"
15         android:text="欢迎您" />
16 
17 </LinearLayout>

 

3、AndroidManifest.xml源码:

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3     package="com.example.responsetest"
 4     android:versionCode="1"
 5     android:versionName="1.0" >
 6 
 7     <uses-sdk
 8         android:minSdkVersion="18"
 9         android:targetSdkVersion="22" />
10 
11     <application
12         android:allowBackup="true"
13         android:icon="@drawable/ic_launcher"
14         android:label="@string/app_name"
15         android:theme="@style/AppTheme" >
16         <activity
17             android:name=".MainActivity"
18             android:label="@string/app_name" >
19             <intent-filter>
20                 <action android:name="android.intent.action.MAIN" />
21 
22                 <category android:name="android.intent.category.LAUNCHER" />
23             </intent-filter>
24         </activity>
25         <activity
26             android:name="com.example.responsetest.SecondActivity"
27             android:excludeFromRecents="true"
28             android:noHistory="true"/>
29     </application>
30 
31 </manifest>

 

 代码分析:

1.两个java类:

  MainActivity.java :主类,代码的主要执行者,操作第一界面

  SecondActivity.java:跳转后的页面,操作第二界面

2.三个xml文件:

activity_main.xml:布局第一个手机界面

activity_second.xml:布局第二个界面(跳转后的界面)

AndroidManifest.xml:Android代码的执行入口