Activity到另一个Acivity

res/main.xml

<?xml version="1.0" encoding="utf-8"?><AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><Button android:id="@+id/btn1"android:layout_x="118dip" android:text="Button" android:layout_width="wrap_content" android:layout_height="wrap_content"  android:layout_y="145dip"></Button><TextView android:text="这是第一个Activity" android:layout_width="fill_parent" android:id="@+id/textView1" android:layout_height="wrap_content" android:layout_x="5dip" android:layout_y="92dip"></TextView></AbsoluteLayout>

res/ex03_09_01.xml

<?xml version="1.0" encoding="utf-8"?><AbsoluteLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="fill_parent"  android:layout_height="fill_parent">    <TextView android:text="这是第二个Activity"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_x="122dip"       android:layout_y="96dip"       android:id="@+id/tv2"></TextView>    <Button android:layout_x="116dip"     android:text="Button"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_y="130dip"     android:id="@+id/btn2"></Button></AbsoluteLayout>

src/EX03_09.java

package gphone.ex03_09;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;public class EX03_09 extends Activity {Button btn1=null;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        btn1=(Button)findViewById(R.id.btn1);        btn1.setOnClickListener(new Button.OnClickListener(){@Overridepublic void onClick(View v) {// TODO Auto-generated method stubIntent intent=new Intent();intent.setClass(EX03_09.this,EX03_09_01.class);startActivity(intent);EX03_09.this.finish();}                });    }}

src/EX03_09_01.java

package gphone.ex03_09;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;public class EX03_09_01 extends Activity{Button btn2=null;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);this.setContentView(R.layout.ex036_09_01);btn2=(Button)findViewById(R.id.btn2);btn2.setOnClickListener(new Button.OnClickListener(){@Overridepublic void onClick(View v) {// TODO Auto-generated method stubIntent intent=new Intent();intent.setClass(EX03_09_01.this,EX03_09.class);startActivity(intent);EX03_09_01.this.finish();}});}}

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