package com.tian.hello;

import android.app.Activity;

import android.os.Bundle;

import android.util.Log;

public class HelloAndroid extends Activity {

    private final static String LOG_TAG = "com.tian.hello.HelloAndroid";

    @Override

        public void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.main);

            Log.i(LOG_TAG, "HelloAndroid Activity Created.");

        }

}

<?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"

    android:gravity="center">

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:gravity="center"

            android:text="@string/hello_android" >

        </TextView>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <string name="app_name">HelloAndroid</string>

    <string name="hello_android">Hello Android</string>

</resources>

<?xml version="1.0" encoding="utf-8"?>

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

      package="com.tian.hello"

      android:versionCode="1"

      android:versionName="1.0">

    <application android:icon="@drawable/icon"

                 android:label="@string/app_name">

        <activity android:name=".HelloAndroid"

                  android:label="@string/app_name">

            <intent-filter>

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

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

            </intent-filter>

        </activity>

    </application>

</manifest> 

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE_TAGS := optional

LOCAL_SRC_FILES := $(call all-subdir-java-files)

LOCAL_PACKAGE_NAME := HelloAndroid

include $(BUILD_PACKAGE)

android:theme="@android:style/Theme.Dialog