實現手機頁面轉換

建立兩個布局檔案 main.xml,main2.xml

res/layout/main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><TextView      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="@string/hello"    android:id="@+id/tvText"/><Button android:layout_height="wrap_content" android:layout_width="wrap_content" android:text="Button" android:id="@+id/mBtn"></Button></LinearLayout>

res/layout/main2.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="fill_parent"  android:layout_height="fill_parent">    <TextView     android:layout_width="wrap_content"     android:id="@+id/textView2"     android:layout_height="wrap_content"     android:text="@string/Activity2">    </TextView>    <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/mBtn2" android:text="Button"></Button></LinearLayout>

src/EX03_08.java

package gphone.ex03_08;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.Button;public class EX03_08 extends Activity {Button mBtn1=null;Button mBtn2=null;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        mBtn1=(Button)this.findViewById(R.id.mBtn1);        mBtn1.setOnClickListener(new Button.OnClickListener(){public void onClick(View v) {// TODO Auto-generated method stub//changeLayout2to1();changeLayout2to1();}                });            }    public void changeLayout1to2()    {    setContentView(R.layout.main);    mBtn1=(Button)findViewById(R.id.mBtn1);        mBtn1.setOnClickListener(new Button.OnClickListener(){public void onClick(View v) {// TODO Auto-generated method stubchangeLayout2to1();}                });    }    public void changeLayout2to1()    {    setContentView(R.layout.main2);    mBtn2=(Button)findViewById(R.id.mBtn2);        mBtn2.setOnClickListener(new Button.OnClickListener(){public void onClick(View v) {// TODO Auto-generated method stubchangeLayout1to2();}                });    }}

運行結果