<pre name="code" class="java">

</pre><pre class="java" name="code"><span style="font-size:18px;">要實現從1個activity跳到另一個activity，這需要通過intent來實現。當然我們需要在Next按鈕上繫結一個按鈕按下的監聽器，一旦該按鈕監聽到有按鍵按下，則通過intent將指定的第2個activity觸發，這樣就完成了本次試驗的功能。</span>

<span style="font-size:18px;">
</span>
 

<span style="font-size:18px;">在工程中,每一個activity都對應一個xml檔案,xml檔案主要是控制各控制元件的位置和屬性的.
</span>

<span style="font-size:18px;"></span><pre name="code" class="java"><strong>MainActivity 對應<span style="font-size: 18px;"> activity_main.xml   </span></strong><pre name="code" class="javascript"><span style="font-size:18px;"><strong>NextActivity 對應 activity_next.xml</strong></span>
 

</pre><pre class="java" name="code"><span style="font-size:18px;"><strong>MainActivity.java:</strong></span>

</pre><pre class="java" name="code">package com.example.deal;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
	
	

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //設定頁面佈局
        setContentView(R.layout.activity_main);
        
        Button button =(Button)findViewById(R.id.button);
        button.setText("Next");
        //註冊頁面中的button事件
        button.setOnClickListener(new MyButtonListener());//註冊自身類的監聽器
    }
    class MyButtonListener implements OnClickListener{
    	 public void onClick(View v) {
    	     
    	     Intent intent = new Intent(); 
    	     intent.setClass(MainActivity.this, NextActivity.class);
    	     MainActivity.this.startActivity(intent);
    	 }  
    	    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    
}
 

</pre><pre class="java" name="code">

<span style="font-size:18px;">
</span>

<pre name="code" class="java"><span style="font-size:14px;">package com.example.deal;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;

public class NextActivity extends Activity{
    private Button button2 = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
 
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_next);
 button2 = (Button)findViewById(R.id.button2);
    //    my_button2.setText("@string/close");    //setText裡面不能採用資源引用
      //資源引用顯示文字應該是在xml中的
 button2.setText("Close");
    }
}
</span>

</pre><pre style="font-size: 18px;" class="java" name="code"><strong>activity_main.xml</strong>

</pre><pre class="java" name="code"><pre name="code" class="html"><span style="font-size:14px;"><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_alignParentLeft="true"
         android:layout_alignParentRight="false"
         android:layout_alignParentTop="true"
         android:layout_centerHorizontal="true"
         android:text="@string/wp"
        />
    
    
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"     
        android:id="@+id/button"   
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
  />

</span><span style="font-size:18px;"></RelativeLayout></span>

<span style="font-size:18px;">
</span>

<span style="font-size:18px;"><strong>activity_next.xml:</strong></span>

<span style="font-size:18px;">
</span>

<span style="font-size:14px;"><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    
    
    <Button 
    android:id="@+id/button2"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    
    />
</LinearLayout></span>

<span style="font-size:14px;">
</span>

<span style="font-size:24px;">執行結果</span>