<?xmlversion="1.0"encoding="utf-8"?>

<manifestxmlns:android="http://schemas.android.com/apk/res/android"

package="com.changcheng.android"

android:versionCode="1"

android:versionName="1.0">

<applicationandroid:icon="@drawable/icon"android:label="@string/app_name">

<activityandroid:name=".HelloWorld"

android:label="@string/app_name">

<intent-filter>

<actionandroid:name="android.intent.action.MAIN"/>

<categoryandroid:name="android.intent.category.LAUNCHER"/>

intent-filter>

activity>

application>

<uses-sdkandroid:minSdkVersion="7"/>

manifest>

packagecom.changcheng.android;

importandroid.app.Activity;

importandroid.os.Bundle;

/**

*我们的HelloWorld类，继承自Activity类。

*

*/

publicclassHelloWorldextendsActivity

{

/** Called when the activity is first created. */

@Override

publicvoidonCreate(Bundle savedInstanceState) {

//在此方法中完成界面的绘制

super.onCreate(savedInstanceState);

//显示R.java文件中的layout静态内部类的main常量。它指向mail.xml

setContentView(R.layout.main);

}

}

<?xmlversion="1.0"encoding="utf-8"?>

<LinearLayoutxmlns: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"

/>

LinearLayout>

<?xmlversion="1.0"encoding="utf-8"?>

<resources>

<stringname="hello">HelloWorld,Hello World!string>

resources>

packagecom.changcheng.android;

publicfinalclassR {

publicstaticfinalclassattr {

}

//图片资源

publicstaticfinalclassdrawable {

publicstaticfinalinticon=0x7f020000;

}

//界面布局资源

publicstaticfinalclasslayout {

publicstaticfinalintmain=0x7f030000;

}

//字符串资源

publicstaticfinalclassstring {

publicstaticfinalintapp_name=0x7f040001;

publicstaticfinalinthello=0x7f040000;

}

}