页面的跳转

1、创建几个。。.java文件，就要在布局中创建几个xml文件

2、然后在清单文件中加下action。

<application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.fengshao.project.MainActivity"
            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="com.fengshao.project.FristActivity"></activity>
         <activity android:name="com.fengshao.project.SecondActivity"></activity>
         <activity android:name="com.fengshao.project.ThirdActivity"></activity>
    </application>

3、然后在MianActivity中写这些就可以了

public class MainActivity extends Activity {
    
    //将参数进行申明
    private Button bt1,bt2,bt3;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //利用id找到相应的控件
        bt1= (Button) findViewById(R.id.button1);
        bt2= (Button) findViewById(R.id.button2);
        bt3= (Button) findViewById(R.id.button3);
        //以下都是设置监听器，并进行监听事件
        bt1.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                
                Intent intent = new Intent();
            intent.setClass(MainActivity.this, FristActivity.class);
            startActivity(intent);
            }
        });
        
        
        bt2.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                
                Intent intent = new Intent();
            intent.setClass(MainActivity.this, SecondActivity.class);
            startActivity(intent);
            }
        });
        
        
        bt3.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                
                Intent intent = new Intent();
            intent.setClass(MainActivity.this, ThirdActivity.class);
            startActivity(intent);
            }
        });
        
        
        
        }
}